diff --git a/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayActiveAlarmsSubscription.java b/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayAlarmFeedSubscription.java
similarity index 61%
rename from clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayActiveAlarmsSubscription.java
rename to clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayAlarmFeedSubscription.java
index 7a2c832..b7e4ab7 100644
--- a/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayActiveAlarmsSubscription.java
+++ b/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayAlarmFeedSubscription.java
@@ -5,33 +5,33 @@ import io.grpc.stub.ClientResponseObserver;
 import io.grpc.stub.StreamObserver;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
-import mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot;
-import mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest;
+import mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage;
+import mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest;
 
 /**
- * Cancellable handle returned by {@code queryActiveAlarms}.
+ * Cancellable handle returned by {@code streamAlarms}.
  *
  * <p>Wraps a caller-supplied {@link StreamObserver} and exposes a
  * {@link #cancel()} entry point that aborts the underlying gRPC call. The
  * subscription also implements {@link AutoCloseable} so it can participate in
  * try-with-resources blocks.
  */
-public final class MxGatewayActiveAlarmsSubscription implements AutoCloseable {
-    private final AtomicReference<ClientCallStreamObserver<QueryActiveAlarmsRequest>> requestStream = new AtomicReference<>();
+public final class MxGatewayAlarmFeedSubscription implements AutoCloseable {
+    private final AtomicReference<ClientCallStreamObserver<StreamAlarmsRequest>> requestStream = new AtomicReference<>();
     private final AtomicBoolean cancelled = new AtomicBoolean();
 
-    ClientResponseObserver<QueryActiveAlarmsRequest, ActiveAlarmSnapshot> wrap(StreamObserver<ActiveAlarmSnapshot> observer) {
+    ClientResponseObserver<StreamAlarmsRequest, AlarmFeedMessage> wrap(StreamObserver<AlarmFeedMessage> observer) {
         return new ClientResponseObserver<>() {
             @Override
-            public void beforeStart(ClientCallStreamObserver<QueryActiveAlarmsRequest> stream) {
+            public void beforeStart(ClientCallStreamObserver<StreamAlarmsRequest> stream) {
                 requestStream.set(stream);
                 if (cancelled.get()) {
-                    stream.cancel("client cancelled active-alarms query", null);
+                    stream.cancel("client cancelled alarm feed", null);
                 }
             }
 
             @Override
-            public void onNext(ActiveAlarmSnapshot value) {
+            public void onNext(AlarmFeedMessage value) {
                 observer.onNext(value);
             }
 
@@ -54,9 +54,9 @@ public final class MxGatewayActiveAlarmsSubscription implements AutoCloseable {
      */
     public void cancel() {
         cancelled.set(true);
-        ClientCallStreamObserver<QueryActiveAlarmsRequest> stream = requestStream.get();
+        ClientCallStreamObserver<StreamAlarmsRequest> stream = requestStream.get();
         if (stream != null) {
-            stream.cancel("client cancelled active-alarms query", null);
+            stream.cancel("client cancelled alarm feed", null);
         }
     }
 
diff --git a/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayClient.java b/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayClient.java
index 7094be2..465475e 100644
--- a/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayClient.java
+++ b/clients/java/mxgateway-client/src/main/java/com/dohertylan/mxgateway/client/MxGatewayClient.java
@@ -10,7 +10,7 @@ import java.util.concurrent.CompletableFuture;
 import mxaccess_gateway.v1.MxAccessGatewayGrpc;
 import mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply;
 import mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest;
-import mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot;
+import mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage;
 import mxaccess_gateway.v1.MxaccessGateway.CloseSessionReply;
 import mxaccess_gateway.v1.MxaccessGateway.CloseSessionRequest;
 import mxaccess_gateway.v1.MxaccessGateway.MxCommandReply;
@@ -19,7 +19,7 @@ import mxaccess_gateway.v1.MxaccessGateway.MxEvent;
 import mxaccess_gateway.v1.MxaccessGateway.OpenSessionReply;
 import mxaccess_gateway.v1.MxaccessGateway.OpenSessionRequest;
 import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatusCode;
-import mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest;
+import mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest;
 import mxaccess_gateway.v1.MxaccessGateway.StreamEventsRequest;
 
 /**
@@ -328,20 +328,24 @@ public final class MxGatewayClient implements AutoCloseable {
     }
 
     /**
-     * Streams a snapshot of all alarms currently Active or ActiveAcked — the
-     * gateway's ConditionRefresh equivalent. Used after reconnect to seed
-     * local Part 9 state.
+     * Attaches to the gateway's central alarm feed. The stream opens with one
+     * {@code AlarmFeedMessage} per currently-active alarm (the ConditionRefresh
+     * snapshot), then a single {@code snapshot_complete}, then a
+     * {@code transition} for every subsequent raise / acknowledge / clear.
      *
-     * @param request the {@code QueryActiveAlarmsRequest}, optionally scoped by
+     * <p>Served by the gateway's always-on alarm monitor — no worker session is
+     * opened — so any number of clients may attach.
+     *
+     * @param request the {@code StreamAlarmsRequest}, optionally scoped by
      *                alarm-reference prefix
-     * @param observer caller-supplied observer that receives snapshots and completion
+     * @param observer caller-supplied observer that receives feed messages and completion
      * @return a cancellable subscription handle
      */
-    public MxGatewayActiveAlarmsSubscription queryActiveAlarms(
-            QueryActiveAlarmsRequest request, StreamObserver<ActiveAlarmSnapshot> observer) {
-        MxGatewayActiveAlarmsSubscription subscription = new MxGatewayActiveAlarmsSubscription();
+    public MxGatewayAlarmFeedSubscription streamAlarms(
+            StreamAlarmsRequest request, StreamObserver<AlarmFeedMessage> observer) {
+        MxGatewayAlarmFeedSubscription subscription = new MxGatewayAlarmFeedSubscription();
         MxGatewayChannels.withStreamDeadline(rawAsyncStub(), options)
-                .queryActiveAlarms(request, subscription.wrap(observer));
+                .streamAlarms(request, subscription.wrap(observer));
         return subscription;
     }
 
diff --git a/clients/java/mxgateway-client/src/test/java/com/dohertylan/mxgateway/client/MxGatewayLowFindingsTests.java b/clients/java/mxgateway-client/src/test/java/com/dohertylan/mxgateway/client/MxGatewayLowFindingsTests.java
index d04e40d..fc99a9f 100644
--- a/clients/java/mxgateway-client/src/test/java/com/dohertylan/mxgateway/client/MxGatewayLowFindingsTests.java
+++ b/clients/java/mxgateway-client/src/test/java/com/dohertylan/mxgateway/client/MxGatewayLowFindingsTests.java
@@ -30,10 +30,11 @@ import mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply;
 import mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest;
 import mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot;
 import mxaccess_gateway.v1.MxaccessGateway.AlarmConditionState;
+import mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage;
 import mxaccess_gateway.v1.MxaccessGateway.MxEvent;
 import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus;
 import mxaccess_gateway.v1.MxaccessGateway.ProtocolStatusCode;
-import mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest;
+import mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest;
 import mxaccess_gateway.v1.MxaccessGateway.StreamEventsRequest;
 import org.junit.jupiter.api.Test;
 
@@ -57,7 +58,6 @@ final class MxGatewayLowFindingsTests {
                     AcknowledgeAlarmRequest request, StreamObserver<AcknowledgeAlarmReply> responseObserver) {
                 seen.set(request);
                 responseObserver.onNext(AcknowledgeAlarmReply.newBuilder()
-                        .setSessionId(request.getSessionId())
                         .setProtocolStatus(ok())
                         .setDiagnosticMessage("acked")
                         .build());
@@ -67,7 +67,6 @@ final class MxGatewayLowFindingsTests {
 
         try (Harness harness = Harness.start(service, "mxgw_keyid_secret", authorization)) {
             AcknowledgeAlarmReply reply = harness.client().acknowledgeAlarm(AcknowledgeAlarmRequest.newBuilder()
-                    .setSessionId("s-1")
                     .setAlarmFullReference("Area1.Pump.PV.HiHi")
                     .setComment("operator note")
                     .build());
@@ -84,7 +83,6 @@ final class MxGatewayLowFindingsTests {
             public void acknowledgeAlarm(
                     AcknowledgeAlarmRequest request, StreamObserver<AcknowledgeAlarmReply> responseObserver) {
                 responseObserver.onNext(AcknowledgeAlarmReply.newBuilder()
-                        .setSessionId(request.getSessionId())
                         .setProtocolStatus(ProtocolStatus.newBuilder()
                                 .setCode(ProtocolStatusCode.PROTOCOL_STATUS_CODE_SESSION_NOT_FOUND))
                         .build());
@@ -96,7 +94,7 @@ final class MxGatewayLowFindingsTests {
             assertThrows(
                     MxGatewayException.class,
                     () -> harness.client().acknowledgeAlarm(AcknowledgeAlarmRequest.newBuilder()
-                            .setSessionId("missing")
+                            .setAlarmFullReference("Area1.Pump.PV.HiHi")
                             .build()));
         }
     }
@@ -108,7 +106,6 @@ final class MxGatewayLowFindingsTests {
             public void acknowledgeAlarm(
                     AcknowledgeAlarmRequest request, StreamObserver<AcknowledgeAlarmReply> responseObserver) {
                 responseObserver.onNext(AcknowledgeAlarmReply.newBuilder()
-                        .setSessionId(request.getSessionId())
                         .setProtocolStatus(ok())
                         .setDiagnosticMessage("async-acked")
                         .build());
@@ -118,7 +115,9 @@ final class MxGatewayLowFindingsTests {
 
         try (Harness harness = Harness.start(service)) {
             CompletableFuture<AcknowledgeAlarmReply> future = harness.client()
-                    .acknowledgeAlarmAsync(AcknowledgeAlarmRequest.newBuilder().setSessionId("s-2").build());
+                    .acknowledgeAlarmAsync(AcknowledgeAlarmRequest.newBuilder()
+                            .setAlarmFullReference("Area1.Pump.PV.HiHi")
+                            .build());
             assertEquals("async-acked", future.get(5, TimeUnit.SECONDS).getDiagnosticMessage());
         }
     }
@@ -135,39 +134,45 @@ final class MxGatewayLowFindingsTests {
 
         try (Harness harness = Harness.start(service)) {
             CompletableFuture<AcknowledgeAlarmReply> future = harness.client()
-                    .acknowledgeAlarmAsync(AcknowledgeAlarmRequest.newBuilder().setSessionId("s-3").build());
+                    .acknowledgeAlarmAsync(AcknowledgeAlarmRequest.newBuilder()
+                            .setAlarmFullReference("Area1.Pump.PV.HiHi")
+                            .build());
             ExecutionException error = assertThrows(
                     ExecutionException.class, () -> future.get(5, TimeUnit.SECONDS));
             assertTrue(error.getCause() instanceof MxGatewayException, () -> String.valueOf(error.getCause()));
         }
     }
 
-    // --- Client.Java-007: QueryActiveAlarms RPC + subscription coverage ---
+    // --- Client.Java-007: StreamAlarms RPC + subscription coverage ---
 
     @Test
-    void queryActiveAlarmsDeliversSnapshotsToObserver() throws Exception {
-        ActiveAlarmSnapshot snapshot = ActiveAlarmSnapshot.newBuilder()
-                .setAlarmFullReference("Area1.Tank.Level.Hi")
-                .setSeverity(800)
-                .setCurrentState(AlarmConditionState.ALARM_CONDITION_STATE_ACTIVE)
+    void streamAlarmsDeliversFeedMessagesToObserver() throws Exception {
+        AlarmFeedMessage active = AlarmFeedMessage.newBuilder()
+                .setActiveAlarm(ActiveAlarmSnapshot.newBuilder()
+                        .setAlarmFullReference("Area1.Tank.Level.Hi")
+                        .setSeverity(800)
+                        .setCurrentState(AlarmConditionState.ALARM_CONDITION_STATE_ACTIVE))
                 .build();
+        AlarmFeedMessage snapshotComplete =
+                AlarmFeedMessage.newBuilder().setSnapshotComplete(true).build();
         TestService service = new TestService() {
             @Override
-            public void queryActiveAlarms(
-                    QueryActiveAlarmsRequest request, StreamObserver<ActiveAlarmSnapshot> responseObserver) {
-                responseObserver.onNext(snapshot);
+            public void streamAlarms(
+                    StreamAlarmsRequest request, StreamObserver<AlarmFeedMessage> responseObserver) {
+                responseObserver.onNext(active);
+                responseObserver.onNext(snapshotComplete);
                 responseObserver.onCompleted();
             }
         };
 
         try (Harness harness = Harness.start(service)) {
-            List<ActiveAlarmSnapshot> received = new ArrayList<>();
+            List<AlarmFeedMessage> received = new ArrayList<>();
             CountDownLatch done = new CountDownLatch(1);
-            harness.client().queryActiveAlarms(
-                    QueryActiveAlarmsRequest.newBuilder().setSessionId("s-4").build(),
+            harness.client().streamAlarms(
+                    StreamAlarmsRequest.newBuilder().build(),
                     new StreamObserver<>() {
                         @Override
-                        public void onNext(ActiveAlarmSnapshot value) {
+                        public void onNext(AlarmFeedMessage value) {
                             received.add(value);
                         }
 
@@ -182,18 +187,19 @@ final class MxGatewayLowFindingsTests {
                         }
                     });
             assertTrue(done.await(5, TimeUnit.SECONDS), "stream should complete");
-            assertEquals(1, received.size());
-            assertEquals("Area1.Tank.Level.Hi", received.get(0).getAlarmFullReference());
+            assertEquals(2, received.size());
+            assertEquals("Area1.Tank.Level.Hi", received.get(0).getActiveAlarm().getAlarmFullReference());
+            assertTrue(received.get(1).getSnapshotComplete());
         }
     }
 
     @Test
-    void activeAlarmsSubscriptionCancelBeforeBeforeStartCancelsStream() {
-        MxGatewayActiveAlarmsSubscription subscription = new MxGatewayActiveAlarmsSubscription();
-        ClientResponseObserver<QueryActiveAlarmsRequest, ActiveAlarmSnapshot> observer =
+    void alarmFeedSubscriptionCancelBeforeBeforeStartCancelsStream() {
+        MxGatewayAlarmFeedSubscription subscription = new MxGatewayAlarmFeedSubscription();
+        ClientResponseObserver<StreamAlarmsRequest, AlarmFeedMessage> observer =
                 subscription.wrap(new StreamObserver<>() {
                     @Override
-                    public void onNext(ActiveAlarmSnapshot value) {
+                    public void onNext(AlarmFeedMessage value) {
                     }
 
                     @Override
@@ -204,13 +210,13 @@ final class MxGatewayLowFindingsTests {
                     public void onCompleted() {
                     }
                 });
-        RecordingActiveAlarmsRequestStream requestStream = new RecordingActiveAlarmsRequestStream();
+        RecordingAlarmFeedRequestStream requestStream = new RecordingAlarmFeedRequestStream();
 
         subscription.cancel();
         observer.beforeStart(requestStream);
 
         assertTrue(requestStream.cancelled);
-        assertEquals("client cancelled active-alarms query", requestStream.cancelMessage);
+        assertEquals("client cancelled alarm feed", requestStream.cancelMessage);
     }
 
     // --- Client.Java-007: async streamEvents + subscription cancellation ---
@@ -456,8 +462,8 @@ final class MxGatewayLowFindingsTests {
         }
     }
 
-    private static final class RecordingActiveAlarmsRequestStream
-            extends ClientCallStreamObserver<QueryActiveAlarmsRequest> {
+    private static final class RecordingAlarmFeedRequestStream
+            extends ClientCallStreamObserver<StreamAlarmsRequest> {
         private boolean cancelled;
         private String cancelMessage;
 
@@ -489,7 +495,7 @@ final class MxGatewayLowFindingsTests {
         }
 
         @Override
-        public void onNext(QueryActiveAlarmsRequest value) {
+        public void onNext(StreamAlarmsRequest value) {
         }
 
         @Override
diff --git a/clients/java/src/main/generated/main/grpc/mxaccess_gateway/v1/MxAccessGatewayGrpc.java b/clients/java/src/main/generated/main/grpc/mxaccess_gateway/v1/MxAccessGatewayGrpc.java
index 2d8fe65..fdf91ee 100644
--- a/clients/java/src/main/generated/main/grpc/mxaccess_gateway/v1/MxAccessGatewayGrpc.java
+++ b/clients/java/src/main/generated/main/grpc/mxaccess_gateway/v1/MxAccessGatewayGrpc.java
@@ -170,35 +170,35 @@ public final class MxAccessGatewayGrpc {
     return getAcknowledgeAlarmMethod;
   }
 
-  private static volatile io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest,
-      mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> getQueryActiveAlarmsMethod;
+  private static volatile io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest,
+      mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> getStreamAlarmsMethod;
 
   @io.grpc.stub.annotations.RpcMethod(
-      fullMethodName = SERVICE_NAME + '/' + "QueryActiveAlarms",
-      requestType = mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.class,
-      responseType = mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.class,
+      fullMethodName = SERVICE_NAME + '/' + "StreamAlarms",
+      requestType = mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.class,
+      responseType = mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.class,
       methodType = io.grpc.MethodDescriptor.MethodType.SERVER_STREAMING)
-  public static io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest,
-      mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> getQueryActiveAlarmsMethod() {
-    io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> getQueryActiveAlarmsMethod;
-    if ((getQueryActiveAlarmsMethod = MxAccessGatewayGrpc.getQueryActiveAlarmsMethod) == null) {
+  public static io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest,
+      mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> getStreamAlarmsMethod() {
+    io.grpc.MethodDescriptor<mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest, mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> getStreamAlarmsMethod;
+    if ((getStreamAlarmsMethod = MxAccessGatewayGrpc.getStreamAlarmsMethod) == null) {
       synchronized (MxAccessGatewayGrpc.class) {
-        if ((getQueryActiveAlarmsMethod = MxAccessGatewayGrpc.getQueryActiveAlarmsMethod) == null) {
-          MxAccessGatewayGrpc.getQueryActiveAlarmsMethod = getQueryActiveAlarmsMethod =
-              io.grpc.MethodDescriptor.<mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot>newBuilder()
+        if ((getStreamAlarmsMethod = MxAccessGatewayGrpc.getStreamAlarmsMethod) == null) {
+          MxAccessGatewayGrpc.getStreamAlarmsMethod = getStreamAlarmsMethod =
+              io.grpc.MethodDescriptor.<mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest, mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage>newBuilder()
               .setType(io.grpc.MethodDescriptor.MethodType.SERVER_STREAMING)
-              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "QueryActiveAlarms"))
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "StreamAlarms"))
               .setSampledToLocalTracing(true)
               .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
-                  mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.getDefaultInstance()))
+                  mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.getDefaultInstance()))
               .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
-                  mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance()))
-              .setSchemaDescriptor(new MxAccessGatewayMethodDescriptorSupplier("QueryActiveAlarms"))
+                  mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.getDefaultInstance()))
+              .setSchemaDescriptor(new MxAccessGatewayMethodDescriptorSupplier("StreamAlarms"))
               .build();
         }
       }
     }
-    return getQueryActiveAlarmsMethod;
+    return getStreamAlarmsMethod;
   }
 
   /**
@@ -303,10 +303,17 @@ public final class MxAccessGatewayGrpc {
     }
 
     /**
+     * <pre>
+     * Session-less central alarm feed. The stream opens with the current
+     * active-alarm snapshot (one `active_alarm` per alarm), then a single
+     * `snapshot_complete`, then a `transition` for every subsequent change.
+     * Served by the gateway's always-on alarm monitor; any number of clients
+     * fan out from the single monitor without opening a worker session.
+     * </pre>
      */
-    default void queryActiveAlarms(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest request,
-        io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> responseObserver) {
-      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getQueryActiveAlarmsMethod(), responseObserver);
+    default void streamAlarms(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest request,
+        io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getStreamAlarmsMethod(), responseObserver);
     }
   }
 
@@ -384,11 +391,18 @@ public final class MxAccessGatewayGrpc {
     }
 
     /**
+     * <pre>
+     * Session-less central alarm feed. The stream opens with the current
+     * active-alarm snapshot (one `active_alarm` per alarm), then a single
+     * `snapshot_complete`, then a `transition` for every subsequent change.
+     * Served by the gateway's always-on alarm monitor; any number of clients
+     * fan out from the single monitor without opening a worker session.
+     * </pre>
      */
-    public void queryActiveAlarms(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest request,
-        io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> responseObserver) {
+    public void streamAlarms(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest request,
+        io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> responseObserver) {
       io.grpc.stub.ClientCalls.asyncServerStreamingCall(
-          getChannel().newCall(getQueryActiveAlarmsMethod(), getCallOptions()), request, responseObserver);
+          getChannel().newCall(getStreamAlarmsMethod(), getCallOptions()), request, responseObserver);
     }
   }
 
@@ -449,12 +463,19 @@ public final class MxAccessGatewayGrpc {
     }
 
     /**
+     * <pre>
+     * Session-less central alarm feed. The stream opens with the current
+     * active-alarm snapshot (one `active_alarm` per alarm), then a single
+     * `snapshot_complete`, then a `transition` for every subsequent change.
+     * Served by the gateway's always-on alarm monitor; any number of clients
+     * fan out from the single monitor without opening a worker session.
+     * </pre>
      */
     @io.grpc.ExperimentalApi("https://github.com/grpc/grpc-java/issues/10918")
-    public io.grpc.stub.BlockingClientCall<?, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot>
-        queryActiveAlarms(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest request) {
+    public io.grpc.stub.BlockingClientCall<?, mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage>
+        streamAlarms(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest request) {
       return io.grpc.stub.ClientCalls.blockingV2ServerStreamingCall(
-          getChannel(), getQueryActiveAlarmsMethod(), getCallOptions(), request);
+          getChannel(), getStreamAlarmsMethod(), getCallOptions(), request);
     }
   }
 
@@ -514,11 +535,18 @@ public final class MxAccessGatewayGrpc {
     }
 
     /**
+     * <pre>
+     * Session-less central alarm feed. The stream opens with the current
+     * active-alarm snapshot (one `active_alarm` per alarm), then a single
+     * `snapshot_complete`, then a `transition` for every subsequent change.
+     * Served by the gateway's always-on alarm monitor; any number of clients
+     * fan out from the single monitor without opening a worker session.
+     * </pre>
      */
-    public java.util.Iterator<mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot> queryActiveAlarms(
-        mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest request) {
+    public java.util.Iterator<mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage> streamAlarms(
+        mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest request) {
       return io.grpc.stub.ClientCalls.blockingServerStreamingCall(
-          getChannel(), getQueryActiveAlarmsMethod(), getCallOptions(), request);
+          getChannel(), getStreamAlarmsMethod(), getCallOptions(), request);
     }
   }
 
@@ -579,7 +607,7 @@ public final class MxAccessGatewayGrpc {
   private static final int METHODID_INVOKE = 2;
   private static final int METHODID_STREAM_EVENTS = 3;
   private static final int METHODID_ACKNOWLEDGE_ALARM = 4;
-  private static final int METHODID_QUERY_ACTIVE_ALARMS = 5;
+  private static final int METHODID_STREAM_ALARMS = 5;
 
   private static final class MethodHandlers<Req, Resp> implements
       io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
@@ -618,9 +646,9 @@ public final class MxAccessGatewayGrpc {
           serviceImpl.acknowledgeAlarm((mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest) request,
               (io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply>) responseObserver);
           break;
-        case METHODID_QUERY_ACTIVE_ALARMS:
-          serviceImpl.queryActiveAlarms((mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest) request,
-              (io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot>) responseObserver);
+        case METHODID_STREAM_ALARMS:
+          serviceImpl.streamAlarms((mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest) request,
+              (io.grpc.stub.StreamObserver<mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage>) responseObserver);
           break;
         default:
           throw new AssertionError();
@@ -676,12 +704,12 @@ public final class MxAccessGatewayGrpc {
               mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply>(
                 service, METHODID_ACKNOWLEDGE_ALARM)))
         .addMethod(
-          getQueryActiveAlarmsMethod(),
+          getStreamAlarmsMethod(),
           io.grpc.stub.ServerCalls.asyncServerStreamingCall(
             new MethodHandlers<
-              mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest,
-              mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot>(
-                service, METHODID_QUERY_ACTIVE_ALARMS)))
+              mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest,
+              mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage>(
+                service, METHODID_STREAM_ALARMS)))
         .build();
   }
 
@@ -735,7 +763,7 @@ public final class MxAccessGatewayGrpc {
               .addMethod(getInvokeMethod())
               .addMethod(getStreamEventsMethod())
               .addMethod(getAcknowledgeAlarmMethod())
-              .addMethod(getQueryActiveAlarmsMethod())
+              .addMethod(getStreamAlarmsMethod())
               .build();
         }
       }
diff --git a/clients/java/src/main/generated/main/java/mxaccess_gateway/v1/MxaccessGateway.java b/clients/java/src/main/generated/main/java/mxaccess_gateway/v1/MxaccessGateway.java
index 9fdc436..dbbcf56 100644
--- a/clients/java/src/main/generated/main/java/mxaccess_gateway/v1/MxaccessGateway.java
+++ b/clients/java/src/main/generated/main/java/mxaccess_gateway/v1/MxaccessGateway.java
@@ -78247,18 +78247,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       // @@protoc_insertion_point(interface_extends:mxaccess_gateway.v1.AcknowledgeAlarmRequest)
       com.google.protobuf.MessageOrBuilder {
 
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    java.lang.String getSessionId();
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    com.google.protobuf.ByteString
-        getSessionIdBytes();
-
     /**
      * <code>string client_correlation_id = 2;</code>
      * @return The clientCorrelationId.
@@ -78355,7 +78343,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       super(builder);
     }
     private AcknowledgeAlarmRequest() {
-      sessionId_ = "";
       clientCorrelationId_ = "";
       alarmFullReference_ = "";
       comment_ = "";
@@ -78375,45 +78362,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
               mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest.class, mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest.Builder.class);
     }
 
-    public static final int SESSION_ID_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object sessionId_ = "";
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    @java.lang.Override
-    public java.lang.String getSessionId() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        sessionId_ = s;
-        return s;
-      }
-    }
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString
-        getSessionIdBytes() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        sessionId_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
     public static final int CLIENT_CORRELATION_ID_FIELD_NUMBER = 2;
     @SuppressWarnings("serial")
     private volatile java.lang.Object clientCorrelationId_ = "";
@@ -78610,9 +78558,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        com.google.protobuf.GeneratedMessage.writeString(output, 1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(clientCorrelationId_)) {
         com.google.protobuf.GeneratedMessage.writeString(output, 2, clientCorrelationId_);
       }
@@ -78634,9 +78579,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        size += com.google.protobuf.GeneratedMessage.computeStringSize(1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(clientCorrelationId_)) {
         size += com.google.protobuf.GeneratedMessage.computeStringSize(2, clientCorrelationId_);
       }
@@ -78664,8 +78606,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest other = (mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest) obj;
 
-      if (!getSessionId()
-          .equals(other.getSessionId())) return false;
       if (!getClientCorrelationId()
           .equals(other.getClientCorrelationId())) return false;
       if (!getAlarmFullReference()
@@ -78685,8 +78625,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (37 * hash) + SESSION_ID_FIELD_NUMBER;
-      hash = (53 * hash) + getSessionId().hashCode();
       hash = (37 * hash) + CLIENT_CORRELATION_ID_FIELD_NUMBER;
       hash = (53 * hash) + getClientCorrelationId().hashCode();
       hash = (37 * hash) + ALARM_FULL_REFERENCE_FIELD_NUMBER;
@@ -78826,7 +78764,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       public Builder clear() {
         super.clear();
         bitField0_ = 0;
-        sessionId_ = "";
         clientCorrelationId_ = "";
         alarmFullReference_ = "";
         comment_ = "";
@@ -78865,18 +78802,15 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       private void buildPartial0(mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest result) {
         int from_bitField0_ = bitField0_;
         if (((from_bitField0_ & 0x00000001) != 0)) {
-          result.sessionId_ = sessionId_;
-        }
-        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.clientCorrelationId_ = clientCorrelationId_;
         }
-        if (((from_bitField0_ & 0x00000004) != 0)) {
+        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.alarmFullReference_ = alarmFullReference_;
         }
-        if (((from_bitField0_ & 0x00000008) != 0)) {
+        if (((from_bitField0_ & 0x00000004) != 0)) {
           result.comment_ = comment_;
         }
-        if (((from_bitField0_ & 0x00000010) != 0)) {
+        if (((from_bitField0_ & 0x00000008) != 0)) {
           result.operatorUser_ = operatorUser_;
         }
       }
@@ -78893,29 +78827,24 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
 
       public Builder mergeFrom(mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest other) {
         if (other == mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmRequest.getDefaultInstance()) return this;
-        if (!other.getSessionId().isEmpty()) {
-          sessionId_ = other.sessionId_;
-          bitField0_ |= 0x00000001;
-          onChanged();
-        }
         if (!other.getClientCorrelationId().isEmpty()) {
           clientCorrelationId_ = other.clientCorrelationId_;
-          bitField0_ |= 0x00000002;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getAlarmFullReference().isEmpty()) {
           alarmFullReference_ = other.alarmFullReference_;
-          bitField0_ |= 0x00000004;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         if (!other.getComment().isEmpty()) {
           comment_ = other.comment_;
-          bitField0_ |= 0x00000008;
+          bitField0_ |= 0x00000004;
           onChanged();
         }
         if (!other.getOperatorUser().isEmpty()) {
           operatorUser_ = other.operatorUser_;
-          bitField0_ |= 0x00000010;
+          bitField0_ |= 0x00000008;
           onChanged();
         }
         this.mergeUnknownFields(other.getUnknownFields());
@@ -78944,29 +78873,24 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
               case 0:
                 done = true;
                 break;
-              case 10: {
-                sessionId_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000001;
-                break;
-              } // case 10
               case 18: {
                 clientCorrelationId_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000002;
+                bitField0_ |= 0x00000001;
                 break;
               } // case 18
               case 26: {
                 alarmFullReference_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000004;
+                bitField0_ |= 0x00000002;
                 break;
               } // case 26
               case 34: {
                 comment_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000008;
+                bitField0_ |= 0x00000004;
                 break;
               } // case 34
               case 42: {
                 operatorUser_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000010;
+                bitField0_ |= 0x00000008;
                 break;
               } // case 42
               default: {
@@ -78986,78 +78910,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       private int bitField0_;
 
-      private java.lang.Object sessionId_ = "";
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The sessionId.
-       */
-      public java.lang.String getSessionId() {
-        java.lang.Object ref = sessionId_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          sessionId_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The bytes for sessionId.
-       */
-      public com.google.protobuf.ByteString
-          getSessionIdBytes() {
-        java.lang.Object ref = sessionId_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          sessionId_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionId(
-          java.lang.String value) {
-        if (value == null) { throw new NullPointerException(); }
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return This builder for chaining.
-       */
-      public Builder clearSessionId() {
-        sessionId_ = getDefaultInstance().getSessionId();
-        bitField0_ = (bitField0_ & ~0x00000001);
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The bytes for sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionIdBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) { throw new NullPointerException(); }
-        checkByteStringIsUtf8(value);
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-
       private java.lang.Object clientCorrelationId_ = "";
       /**
        * <code>string client_correlation_id = 2;</code>
@@ -79101,7 +78953,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         clientCorrelationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -79111,7 +78963,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearClientCorrelationId() {
         clientCorrelationId_ = getDefaultInstance().getClientCorrelationId();
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -79125,7 +78977,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         clientCorrelationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -79185,7 +79037,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         alarmFullReference_ = value;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -79199,7 +79051,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearAlarmFullReference() {
         alarmFullReference_ = getDefaultInstance().getAlarmFullReference();
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
@@ -79217,7 +79069,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         alarmFullReference_ = value;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -79277,7 +79129,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         comment_ = value;
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -79291,7 +79143,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearComment() {
         comment_ = getDefaultInstance().getComment();
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000004);
         onChanged();
         return this;
       }
@@ -79309,7 +79161,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         comment_ = value;
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -79372,7 +79224,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         operatorUser_ = value;
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -79387,7 +79239,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearOperatorUser() {
         operatorUser_ = getDefaultInstance().getOperatorUser();
-        bitField0_ = (bitField0_ & ~0x00000010);
+        bitField0_ = (bitField0_ & ~0x00000008);
         onChanged();
         return this;
       }
@@ -79406,7 +79258,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         operatorUser_ = value;
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -79466,18 +79318,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       // @@protoc_insertion_point(interface_extends:mxaccess_gateway.v1.AcknowledgeAlarmReply)
       com.google.protobuf.MessageOrBuilder {
 
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    java.lang.String getSessionId();
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    com.google.protobuf.ByteString
-        getSessionIdBytes();
-
     /**
      * <code>string correlation_id = 2;</code>
      * @return The correlationId.
@@ -79607,7 +79447,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       super(builder);
     }
     private AcknowledgeAlarmReply() {
-      sessionId_ = "";
       correlationId_ = "";
       diagnosticMessage_ = "";
     }
@@ -79626,45 +79465,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     }
 
     private int bitField0_;
-    public static final int SESSION_ID_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object sessionId_ = "";
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    @java.lang.Override
-    public java.lang.String getSessionId() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        sessionId_ = s;
-        return s;
-      }
-    }
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString
-        getSessionIdBytes() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        sessionId_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
     public static final int CORRELATION_ID_FIELD_NUMBER = 2;
     @SuppressWarnings("serial")
     private volatile java.lang.Object correlationId_ = "";
@@ -79870,9 +79670,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        com.google.protobuf.GeneratedMessage.writeString(output, 1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(correlationId_)) {
         com.google.protobuf.GeneratedMessage.writeString(output, 2, correlationId_);
       }
@@ -79897,9 +79694,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        size += com.google.protobuf.GeneratedMessage.computeStringSize(1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(correlationId_)) {
         size += com.google.protobuf.GeneratedMessage.computeStringSize(2, correlationId_);
       }
@@ -79933,8 +79727,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply other = (mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply) obj;
 
-      if (!getSessionId()
-          .equals(other.getSessionId())) return false;
       if (!getCorrelationId()
           .equals(other.getCorrelationId())) return false;
       if (hasProtocolStatus() != other.hasProtocolStatus()) return false;
@@ -79965,8 +79757,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (37 * hash) + SESSION_ID_FIELD_NUMBER;
-      hash = (53 * hash) + getSessionId().hashCode();
       hash = (37 * hash) + CORRELATION_ID_FIELD_NUMBER;
       hash = (53 * hash) + getCorrelationId().hashCode();
       if (hasProtocolStatus()) {
@@ -80121,7 +79911,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       public Builder clear() {
         super.clear();
         bitField0_ = 0;
-        sessionId_ = "";
         correlationId_ = "";
         protocolStatus_ = null;
         if (protocolStatusBuilder_ != null) {
@@ -80169,29 +79958,26 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       private void buildPartial0(mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply result) {
         int from_bitField0_ = bitField0_;
         if (((from_bitField0_ & 0x00000001) != 0)) {
-          result.sessionId_ = sessionId_;
-        }
-        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.correlationId_ = correlationId_;
         }
         int to_bitField0_ = 0;
-        if (((from_bitField0_ & 0x00000004) != 0)) {
+        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.protocolStatus_ = protocolStatusBuilder_ == null
               ? protocolStatus_
               : protocolStatusBuilder_.build();
           to_bitField0_ |= 0x00000001;
         }
-        if (((from_bitField0_ & 0x00000008) != 0)) {
+        if (((from_bitField0_ & 0x00000004) != 0)) {
           result.hresult_ = hresult_;
           to_bitField0_ |= 0x00000002;
         }
-        if (((from_bitField0_ & 0x00000010) != 0)) {
+        if (((from_bitField0_ & 0x00000008) != 0)) {
           result.status_ = statusBuilder_ == null
               ? status_
               : statusBuilder_.build();
           to_bitField0_ |= 0x00000004;
         }
-        if (((from_bitField0_ & 0x00000020) != 0)) {
+        if (((from_bitField0_ & 0x00000010) != 0)) {
           result.diagnosticMessage_ = diagnosticMessage_;
         }
         result.bitField0_ |= to_bitField0_;
@@ -80209,14 +79995,9 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
 
       public Builder mergeFrom(mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply other) {
         if (other == mxaccess_gateway.v1.MxaccessGateway.AcknowledgeAlarmReply.getDefaultInstance()) return this;
-        if (!other.getSessionId().isEmpty()) {
-          sessionId_ = other.sessionId_;
-          bitField0_ |= 0x00000001;
-          onChanged();
-        }
         if (!other.getCorrelationId().isEmpty()) {
           correlationId_ = other.correlationId_;
-          bitField0_ |= 0x00000002;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (other.hasProtocolStatus()) {
@@ -80230,7 +80011,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         }
         if (!other.getDiagnosticMessage().isEmpty()) {
           diagnosticMessage_ = other.diagnosticMessage_;
-          bitField0_ |= 0x00000020;
+          bitField0_ |= 0x00000010;
           onChanged();
         }
         this.mergeUnknownFields(other.getUnknownFields());
@@ -80259,38 +80040,33 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
               case 0:
                 done = true;
                 break;
-              case 10: {
-                sessionId_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000001;
-                break;
-              } // case 10
               case 18: {
                 correlationId_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000002;
+                bitField0_ |= 0x00000001;
                 break;
               } // case 18
               case 26: {
                 input.readMessage(
                     internalGetProtocolStatusFieldBuilder().getBuilder(),
                     extensionRegistry);
-                bitField0_ |= 0x00000004;
+                bitField0_ |= 0x00000002;
                 break;
               } // case 26
               case 32: {
                 hresult_ = input.readInt32();
-                bitField0_ |= 0x00000008;
+                bitField0_ |= 0x00000004;
                 break;
               } // case 32
               case 42: {
                 input.readMessage(
                     internalGetStatusFieldBuilder().getBuilder(),
                     extensionRegistry);
-                bitField0_ |= 0x00000010;
+                bitField0_ |= 0x00000008;
                 break;
               } // case 42
               case 50: {
                 diagnosticMessage_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000020;
+                bitField0_ |= 0x00000010;
                 break;
               } // case 50
               default: {
@@ -80310,78 +80086,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       private int bitField0_;
 
-      private java.lang.Object sessionId_ = "";
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The sessionId.
-       */
-      public java.lang.String getSessionId() {
-        java.lang.Object ref = sessionId_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          sessionId_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The bytes for sessionId.
-       */
-      public com.google.protobuf.ByteString
-          getSessionIdBytes() {
-        java.lang.Object ref = sessionId_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          sessionId_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionId(
-          java.lang.String value) {
-        if (value == null) { throw new NullPointerException(); }
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return This builder for chaining.
-       */
-      public Builder clearSessionId() {
-        sessionId_ = getDefaultInstance().getSessionId();
-        bitField0_ = (bitField0_ & ~0x00000001);
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The bytes for sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionIdBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) { throw new NullPointerException(); }
-        checkByteStringIsUtf8(value);
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-
       private java.lang.Object correlationId_ = "";
       /**
        * <code>string correlation_id = 2;</code>
@@ -80425,7 +80129,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         correlationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -80435,7 +80139,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearCorrelationId() {
         correlationId_ = getDefaultInstance().getCorrelationId();
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
@@ -80449,7 +80153,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         correlationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -80462,7 +80166,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * @return Whether the protocolStatus field is set.
        */
       public boolean hasProtocolStatus() {
-        return ((bitField0_ & 0x00000004) != 0);
+        return ((bitField0_ & 0x00000002) != 0);
       }
       /**
        * <code>.mxaccess_gateway.v1.ProtocolStatus protocol_status = 3;</code>
@@ -80487,7 +80191,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         } else {
           protocolStatusBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -80501,7 +80205,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         } else {
           protocolStatusBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
@@ -80510,7 +80214,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder mergeProtocolStatus(mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus value) {
         if (protocolStatusBuilder_ == null) {
-          if (((bitField0_ & 0x00000004) != 0) &&
+          if (((bitField0_ & 0x00000002) != 0) &&
             protocolStatus_ != null &&
             protocolStatus_ != mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus.getDefaultInstance()) {
             getProtocolStatusBuilder().mergeFrom(value);
@@ -80521,7 +80225,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           protocolStatusBuilder_.mergeFrom(value);
         }
         if (protocolStatus_ != null) {
-          bitField0_ |= 0x00000004;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         return this;
@@ -80530,7 +80234,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * <code>.mxaccess_gateway.v1.ProtocolStatus protocol_status = 3;</code>
        */
       public Builder clearProtocolStatus() {
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000002);
         protocolStatus_ = null;
         if (protocolStatusBuilder_ != null) {
           protocolStatusBuilder_.dispose();
@@ -80543,7 +80247,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * <code>.mxaccess_gateway.v1.ProtocolStatus protocol_status = 3;</code>
        */
       public mxaccess_gateway.v1.MxaccessGateway.ProtocolStatus.Builder getProtocolStatusBuilder() {
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return internalGetProtocolStatusFieldBuilder().getBuilder();
       }
@@ -80591,7 +80295,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       @java.lang.Override
       public boolean hasHresult() {
-        return ((bitField0_ & 0x00000008) != 0);
+        return ((bitField0_ & 0x00000004) != 0);
       }
       /**
        * <pre>
@@ -80627,7 +80331,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       public Builder setHresult(int value) {
 
         hresult_ = value;
-        bitField0_ |= 0x00000008;
+        bitField0_ |= 0x00000004;
         onChanged();
         return this;
       }
@@ -80645,7 +80349,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * @return This builder for chaining.
        */
       public Builder clearHresult() {
-        bitField0_ = (bitField0_ & ~0x00000008);
+        bitField0_ = (bitField0_ & ~0x00000004);
         hresult_ = 0;
         onChanged();
         return this;
@@ -80667,7 +80371,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * @return Whether the status field is set.
        */
       public boolean hasStatus() {
-        return ((bitField0_ & 0x00000010) != 0);
+        return ((bitField0_ & 0x00000008) != 0);
       }
       /**
        * <pre>
@@ -80708,7 +80412,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         } else {
           statusBuilder_.setMessage(value);
         }
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -80730,7 +80434,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         } else {
           statusBuilder_.setMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         onChanged();
         return this;
       }
@@ -80747,7 +80451,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder mergeStatus(mxaccess_gateway.v1.MxaccessGateway.MxStatusProxy value) {
         if (statusBuilder_ == null) {
-          if (((bitField0_ & 0x00000010) != 0) &&
+          if (((bitField0_ & 0x00000008) != 0) &&
             status_ != null &&
             status_ != mxaccess_gateway.v1.MxaccessGateway.MxStatusProxy.getDefaultInstance()) {
             getStatusBuilder().mergeFrom(value);
@@ -80758,7 +80462,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           statusBuilder_.mergeFrom(value);
         }
         if (status_ != null) {
-          bitField0_ |= 0x00000010;
+          bitField0_ |= 0x00000008;
           onChanged();
         }
         return this;
@@ -80775,7 +80479,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * <code>.mxaccess_gateway.v1.MxStatusProxy status = 5;</code>
        */
       public Builder clearStatus() {
-        bitField0_ = (bitField0_ & ~0x00000010);
+        bitField0_ = (bitField0_ & ~0x00000008);
         status_ = null;
         if (statusBuilder_ != null) {
           statusBuilder_.dispose();
@@ -80796,7 +80500,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        * <code>.mxaccess_gateway.v1.MxStatusProxy status = 5;</code>
        */
       public mxaccess_gateway.v1.MxaccessGateway.MxStatusProxy.Builder getStatusBuilder() {
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000008;
         onChanged();
         return internalGetStatusFieldBuilder().getBuilder();
       }
@@ -80887,7 +80591,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         diagnosticMessage_ = value;
-        bitField0_ |= 0x00000020;
+        bitField0_ |= 0x00000010;
         onChanged();
         return this;
       }
@@ -80897,7 +80601,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
        */
       public Builder clearDiagnosticMessage() {
         diagnosticMessage_ = getDefaultInstance().getDiagnosticMessage();
-        bitField0_ = (bitField0_ & ~0x00000020);
+        bitField0_ = (bitField0_ & ~0x00000010);
         onChanged();
         return this;
       }
@@ -80911,7 +80615,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         diagnosticMessage_ = value;
-        bitField0_ |= 0x00000020;
+        bitField0_ |= 0x00000010;
         onChanged();
         return this;
       }
@@ -80967,29 +80671,17 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
 
   }
 
-  public interface QueryActiveAlarmsRequestOrBuilder extends
-      // @@protoc_insertion_point(interface_extends:mxaccess_gateway.v1.QueryActiveAlarmsRequest)
+  public interface StreamAlarmsRequestOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:mxaccess_gateway.v1.StreamAlarmsRequest)
       com.google.protobuf.MessageOrBuilder {
 
     /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    java.lang.String getSessionId();
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    com.google.protobuf.ByteString
-        getSessionIdBytes();
-
-    /**
-     * <code>string client_correlation_id = 2;</code>
+     * <code>string client_correlation_id = 1;</code>
      * @return The clientCorrelationId.
      */
     java.lang.String getClientCorrelationId();
     /**
-     * <code>string client_correlation_id = 2;</code>
+     * <code>string client_correlation_id = 1;</code>
      * @return The bytes for clientCorrelationId.
      */
     com.google.protobuf.ByteString
@@ -80997,33 +80689,37 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
 
     /**
      * <pre>
-     * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-     * (e.g. equipment sub-tree). Empty means full refresh.
+     * Optional alarm-reference prefix scoping the feed to an equipment
+     * sub-tree. Empty streams every active alarm.
      * </pre>
      *
-     * <code>string alarm_filter_prefix = 3;</code>
+     * <code>string alarm_filter_prefix = 2;</code>
      * @return The alarmFilterPrefix.
      */
     java.lang.String getAlarmFilterPrefix();
     /**
      * <pre>
-     * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-     * (e.g. equipment sub-tree). Empty means full refresh.
+     * Optional alarm-reference prefix scoping the feed to an equipment
+     * sub-tree. Empty streams every active alarm.
      * </pre>
      *
-     * <code>string alarm_filter_prefix = 3;</code>
+     * <code>string alarm_filter_prefix = 2;</code>
      * @return The bytes for alarmFilterPrefix.
      */
     com.google.protobuf.ByteString
         getAlarmFilterPrefixBytes();
   }
   /**
-   * Protobuf type {@code mxaccess_gateway.v1.QueryActiveAlarmsRequest}
+   * <pre>
+   * Request to attach to the gateway's central alarm feed (StreamAlarms).
+   * </pre>
+   *
+   * Protobuf type {@code mxaccess_gateway.v1.StreamAlarmsRequest}
    */
-  public static final class QueryActiveAlarmsRequest extends
+  public static final class StreamAlarmsRequest extends
       com.google.protobuf.GeneratedMessage implements
-      // @@protoc_insertion_point(message_implements:mxaccess_gateway.v1.QueryActiveAlarmsRequest)
-      QueryActiveAlarmsRequestOrBuilder {
+      // @@protoc_insertion_point(message_implements:mxaccess_gateway.v1.StreamAlarmsRequest)
+      StreamAlarmsRequestOrBuilder {
   private static final long serialVersionUID = 0L;
     static {
       com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
@@ -81032,75 +80728,35 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         /* minor= */ 33,
         /* patch= */ 1,
         /* suffix= */ "",
-        "QueryActiveAlarmsRequest");
+        "StreamAlarmsRequest");
     }
-    // Use QueryActiveAlarmsRequest.newBuilder() to construct.
-    private QueryActiveAlarmsRequest(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+    // Use StreamAlarmsRequest.newBuilder() to construct.
+    private StreamAlarmsRequest(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
       super(builder);
     }
-    private QueryActiveAlarmsRequest() {
-      sessionId_ = "";
+    private StreamAlarmsRequest() {
       clientCorrelationId_ = "";
       alarmFilterPrefix_ = "";
     }
 
     public static final com.google.protobuf.Descriptors.Descriptor
         getDescriptor() {
-      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor;
+      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor;
     }
 
     @java.lang.Override
     protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
         internalGetFieldAccessorTable() {
-      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_fieldAccessorTable
+      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_fieldAccessorTable
           .ensureFieldAccessorsInitialized(
-              mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.class, mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.Builder.class);
+              mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.class, mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.Builder.class);
     }
 
-    public static final int SESSION_ID_FIELD_NUMBER = 1;
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object sessionId_ = "";
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The sessionId.
-     */
-    @java.lang.Override
-    public java.lang.String getSessionId() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        sessionId_ = s;
-        return s;
-      }
-    }
-    /**
-     * <code>string session_id = 1;</code>
-     * @return The bytes for sessionId.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString
-        getSessionIdBytes() {
-      java.lang.Object ref = sessionId_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        sessionId_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
-    public static final int CLIENT_CORRELATION_ID_FIELD_NUMBER = 2;
+    public static final int CLIENT_CORRELATION_ID_FIELD_NUMBER = 1;
     @SuppressWarnings("serial")
     private volatile java.lang.Object clientCorrelationId_ = "";
     /**
-     * <code>string client_correlation_id = 2;</code>
+     * <code>string client_correlation_id = 1;</code>
      * @return The clientCorrelationId.
      */
     @java.lang.Override
@@ -81117,7 +80773,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
     }
     /**
-     * <code>string client_correlation_id = 2;</code>
+     * <code>string client_correlation_id = 1;</code>
      * @return The bytes for clientCorrelationId.
      */
     @java.lang.Override
@@ -81135,16 +80791,16 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
     }
 
-    public static final int ALARM_FILTER_PREFIX_FIELD_NUMBER = 3;
+    public static final int ALARM_FILTER_PREFIX_FIELD_NUMBER = 2;
     @SuppressWarnings("serial")
     private volatile java.lang.Object alarmFilterPrefix_ = "";
     /**
      * <pre>
-     * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-     * (e.g. equipment sub-tree). Empty means full refresh.
+     * Optional alarm-reference prefix scoping the feed to an equipment
+     * sub-tree. Empty streams every active alarm.
      * </pre>
      *
-     * <code>string alarm_filter_prefix = 3;</code>
+     * <code>string alarm_filter_prefix = 2;</code>
      * @return The alarmFilterPrefix.
      */
     @java.lang.Override
@@ -81162,11 +80818,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     }
     /**
      * <pre>
-     * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-     * (e.g. equipment sub-tree). Empty means full refresh.
+     * Optional alarm-reference prefix scoping the feed to an equipment
+     * sub-tree. Empty streams every active alarm.
      * </pre>
      *
-     * <code>string alarm_filter_prefix = 3;</code>
+     * <code>string alarm_filter_prefix = 2;</code>
      * @return The bytes for alarmFilterPrefix.
      */
     @java.lang.Override
@@ -81198,14 +80854,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output)
                         throws java.io.IOException {
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        com.google.protobuf.GeneratedMessage.writeString(output, 1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(clientCorrelationId_)) {
-        com.google.protobuf.GeneratedMessage.writeString(output, 2, clientCorrelationId_);
+        com.google.protobuf.GeneratedMessage.writeString(output, 1, clientCorrelationId_);
       }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(alarmFilterPrefix_)) {
-        com.google.protobuf.GeneratedMessage.writeString(output, 3, alarmFilterPrefix_);
+        com.google.protobuf.GeneratedMessage.writeString(output, 2, alarmFilterPrefix_);
       }
       getUnknownFields().writeTo(output);
     }
@@ -81216,14 +80869,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       if (size != -1) return size;
 
       size = 0;
-      if (!com.google.protobuf.GeneratedMessage.isStringEmpty(sessionId_)) {
-        size += com.google.protobuf.GeneratedMessage.computeStringSize(1, sessionId_);
-      }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(clientCorrelationId_)) {
-        size += com.google.protobuf.GeneratedMessage.computeStringSize(2, clientCorrelationId_);
+        size += com.google.protobuf.GeneratedMessage.computeStringSize(1, clientCorrelationId_);
       }
       if (!com.google.protobuf.GeneratedMessage.isStringEmpty(alarmFilterPrefix_)) {
-        size += com.google.protobuf.GeneratedMessage.computeStringSize(3, alarmFilterPrefix_);
+        size += com.google.protobuf.GeneratedMessage.computeStringSize(2, alarmFilterPrefix_);
       }
       size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
@@ -81235,13 +80885,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       if (obj == this) {
        return true;
       }
-      if (!(obj instanceof mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest)) {
+      if (!(obj instanceof mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest)) {
         return super.equals(obj);
       }
-      mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest other = (mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest) obj;
+      mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest other = (mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest) obj;
 
-      if (!getSessionId()
-          .equals(other.getSessionId())) return false;
       if (!getClientCorrelationId()
           .equals(other.getClientCorrelationId())) return false;
       if (!getAlarmFilterPrefix()
@@ -81257,8 +80905,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      hash = (37 * hash) + SESSION_ID_FIELD_NUMBER;
-      hash = (53 * hash) + getSessionId().hashCode();
       hash = (37 * hash) + CLIENT_CORRELATION_ID_FIELD_NUMBER;
       hash = (53 * hash) + getClientCorrelationId().hashCode();
       hash = (37 * hash) + ALARM_FILTER_PREFIX_FIELD_NUMBER;
@@ -81268,44 +80914,44 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       return hash;
     }
 
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         java.nio.ByteBuffer data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         java.nio.ByteBuffer data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(byte[] data)
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         byte[] data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(java.io.InputStream input)
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessage
           .parseWithIOException(PARSER, input);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -81313,26 +80959,26 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           .parseWithIOException(PARSER, input, extensionRegistry);
     }
 
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseDelimitedFrom(java.io.InputStream input)
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseDelimitedFrom(java.io.InputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessage
           .parseDelimitedWithIOException(PARSER, input);
     }
 
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseDelimitedFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseDelimitedFrom(
         java.io.InputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessage
           .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         com.google.protobuf.CodedInputStream input)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessage
           .parseWithIOException(PARSER, input);
     }
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest parseFrom(
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -81345,7 +80991,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     public static Builder newBuilder() {
       return DEFAULT_INSTANCE.toBuilder();
     }
-    public static Builder newBuilder(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest prototype) {
+    public static Builder newBuilder(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
     @java.lang.Override
@@ -81361,26 +81007,30 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       return builder;
     }
     /**
-     * Protobuf type {@code mxaccess_gateway.v1.QueryActiveAlarmsRequest}
+     * <pre>
+     * Request to attach to the gateway's central alarm feed (StreamAlarms).
+     * </pre>
+     *
+     * Protobuf type {@code mxaccess_gateway.v1.StreamAlarmsRequest}
      */
     public static final class Builder extends
         com.google.protobuf.GeneratedMessage.Builder<Builder> implements
-        // @@protoc_insertion_point(builder_implements:mxaccess_gateway.v1.QueryActiveAlarmsRequest)
-        mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequestOrBuilder {
+        // @@protoc_insertion_point(builder_implements:mxaccess_gateway.v1.StreamAlarmsRequest)
+        mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequestOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor
           getDescriptor() {
-        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor;
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
           internalGetFieldAccessorTable() {
-        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_fieldAccessorTable
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.class, mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.Builder.class);
+                mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.class, mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.Builder.class);
       }
 
-      // Construct using mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.newBuilder()
+      // Construct using mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.newBuilder()
       private Builder() {
 
       }
@@ -81394,7 +81044,6 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       public Builder clear() {
         super.clear();
         bitField0_ = 0;
-        sessionId_ = "";
         clientCorrelationId_ = "";
         alarmFilterPrefix_ = "";
         return this;
@@ -81403,17 +81052,17 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       @java.lang.Override
       public com.google.protobuf.Descriptors.Descriptor
           getDescriptorForType() {
-        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor;
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor;
       }
 
       @java.lang.Override
-      public mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest getDefaultInstanceForType() {
-        return mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.getDefaultInstance();
+      public mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest getDefaultInstanceForType() {
+        return mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.getDefaultInstance();
       }
 
       @java.lang.Override
-      public mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest build() {
-        mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest result = buildPartial();
+      public mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest build() {
+        mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
@@ -81421,51 +81070,43 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
 
       @java.lang.Override
-      public mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest buildPartial() {
-        mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest result = new mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest(this);
+      public mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest buildPartial() {
+        mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest result = new mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest(this);
         if (bitField0_ != 0) { buildPartial0(result); }
         onBuilt();
         return result;
       }
 
-      private void buildPartial0(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest result) {
+      private void buildPartial0(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest result) {
         int from_bitField0_ = bitField0_;
         if (((from_bitField0_ & 0x00000001) != 0)) {
-          result.sessionId_ = sessionId_;
-        }
-        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.clientCorrelationId_ = clientCorrelationId_;
         }
-        if (((from_bitField0_ & 0x00000004) != 0)) {
+        if (((from_bitField0_ & 0x00000002) != 0)) {
           result.alarmFilterPrefix_ = alarmFilterPrefix_;
         }
       }
 
       @java.lang.Override
       public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest) {
-          return mergeFrom((mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest)other);
+        if (other instanceof mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest) {
+          return mergeFrom((mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest)other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }
 
-      public Builder mergeFrom(mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest other) {
-        if (other == mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest.getDefaultInstance()) return this;
-        if (!other.getSessionId().isEmpty()) {
-          sessionId_ = other.sessionId_;
-          bitField0_ |= 0x00000001;
-          onChanged();
-        }
+      public Builder mergeFrom(mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest other) {
+        if (other == mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest.getDefaultInstance()) return this;
         if (!other.getClientCorrelationId().isEmpty()) {
           clientCorrelationId_ = other.clientCorrelationId_;
-          bitField0_ |= 0x00000002;
+          bitField0_ |= 0x00000001;
           onChanged();
         }
         if (!other.getAlarmFilterPrefix().isEmpty()) {
           alarmFilterPrefix_ = other.alarmFilterPrefix_;
-          bitField0_ |= 0x00000004;
+          bitField0_ |= 0x00000002;
           onChanged();
         }
         this.mergeUnknownFields(other.getUnknownFields());
@@ -81495,20 +81136,15 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
                 done = true;
                 break;
               case 10: {
-                sessionId_ = input.readStringRequireUtf8();
+                clientCorrelationId_ = input.readStringRequireUtf8();
                 bitField0_ |= 0x00000001;
                 break;
               } // case 10
               case 18: {
-                clientCorrelationId_ = input.readStringRequireUtf8();
+                alarmFilterPrefix_ = input.readStringRequireUtf8();
                 bitField0_ |= 0x00000002;
                 break;
               } // case 18
-              case 26: {
-                alarmFilterPrefix_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000004;
-                break;
-              } // case 26
               default: {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                   done = true; // was an endgroup tag
@@ -81526,81 +81162,9 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       private int bitField0_;
 
-      private java.lang.Object sessionId_ = "";
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The sessionId.
-       */
-      public java.lang.String getSessionId() {
-        java.lang.Object ref = sessionId_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs =
-              (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          sessionId_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return The bytes for sessionId.
-       */
-      public com.google.protobuf.ByteString
-          getSessionIdBytes() {
-        java.lang.Object ref = sessionId_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          sessionId_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionId(
-          java.lang.String value) {
-        if (value == null) { throw new NullPointerException(); }
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @return This builder for chaining.
-       */
-      public Builder clearSessionId() {
-        sessionId_ = getDefaultInstance().getSessionId();
-        bitField0_ = (bitField0_ & ~0x00000001);
-        onChanged();
-        return this;
-      }
-      /**
-       * <code>string session_id = 1;</code>
-       * @param value The bytes for sessionId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSessionIdBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) { throw new NullPointerException(); }
-        checkByteStringIsUtf8(value);
-        sessionId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
-      }
-
       private java.lang.Object clientCorrelationId_ = "";
       /**
-       * <code>string client_correlation_id = 2;</code>
+       * <code>string client_correlation_id = 1;</code>
        * @return The clientCorrelationId.
        */
       public java.lang.String getClientCorrelationId() {
@@ -81616,7 +81180,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         }
       }
       /**
-       * <code>string client_correlation_id = 2;</code>
+       * <code>string client_correlation_id = 1;</code>
        * @return The bytes for clientCorrelationId.
        */
       public com.google.protobuf.ByteString
@@ -81633,7 +81197,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         }
       }
       /**
-       * <code>string client_correlation_id = 2;</code>
+       * <code>string client_correlation_id = 1;</code>
        * @param value The clientCorrelationId to set.
        * @return This builder for chaining.
        */
@@ -81641,22 +81205,22 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         clientCorrelationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
       /**
-       * <code>string client_correlation_id = 2;</code>
+       * <code>string client_correlation_id = 1;</code>
        * @return This builder for chaining.
        */
       public Builder clearClientCorrelationId() {
         clientCorrelationId_ = getDefaultInstance().getClientCorrelationId();
-        bitField0_ = (bitField0_ & ~0x00000002);
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
         return this;
       }
       /**
-       * <code>string client_correlation_id = 2;</code>
+       * <code>string client_correlation_id = 1;</code>
        * @param value The bytes for clientCorrelationId to set.
        * @return This builder for chaining.
        */
@@ -81665,7 +81229,7 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         clientCorrelationId_ = value;
-        bitField0_ |= 0x00000002;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -81673,11 +81237,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       private java.lang.Object alarmFilterPrefix_ = "";
       /**
        * <pre>
-       * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-       * (e.g. equipment sub-tree). Empty means full refresh.
+       * Optional alarm-reference prefix scoping the feed to an equipment
+       * sub-tree. Empty streams every active alarm.
        * </pre>
        *
-       * <code>string alarm_filter_prefix = 3;</code>
+       * <code>string alarm_filter_prefix = 2;</code>
        * @return The alarmFilterPrefix.
        */
       public java.lang.String getAlarmFilterPrefix() {
@@ -81694,11 +81258,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       /**
        * <pre>
-       * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-       * (e.g. equipment sub-tree). Empty means full refresh.
+       * Optional alarm-reference prefix scoping the feed to an equipment
+       * sub-tree. Empty streams every active alarm.
        * </pre>
        *
-       * <code>string alarm_filter_prefix = 3;</code>
+       * <code>string alarm_filter_prefix = 2;</code>
        * @return The bytes for alarmFilterPrefix.
        */
       public com.google.protobuf.ByteString
@@ -81716,11 +81280,11 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
       /**
        * <pre>
-       * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-       * (e.g. equipment sub-tree). Empty means full refresh.
+       * Optional alarm-reference prefix scoping the feed to an equipment
+       * sub-tree. Empty streams every active alarm.
        * </pre>
        *
-       * <code>string alarm_filter_prefix = 3;</code>
+       * <code>string alarm_filter_prefix = 2;</code>
        * @param value The alarmFilterPrefix to set.
        * @return This builder for chaining.
        */
@@ -81728,32 +81292,32 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
           java.lang.String value) {
         if (value == null) { throw new NullPointerException(); }
         alarmFilterPrefix_ = value;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
       /**
        * <pre>
-       * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-       * (e.g. equipment sub-tree). Empty means full refresh.
+       * Optional alarm-reference prefix scoping the feed to an equipment
+       * sub-tree. Empty streams every active alarm.
        * </pre>
        *
-       * <code>string alarm_filter_prefix = 3;</code>
+       * <code>string alarm_filter_prefix = 2;</code>
        * @return This builder for chaining.
        */
       public Builder clearAlarmFilterPrefix() {
         alarmFilterPrefix_ = getDefaultInstance().getAlarmFilterPrefix();
-        bitField0_ = (bitField0_ & ~0x00000004);
+        bitField0_ = (bitField0_ & ~0x00000002);
         onChanged();
         return this;
       }
       /**
        * <pre>
-       * Optional alarm-reference prefix used to scope a partial ConditionRefresh
-       * (e.g. equipment sub-tree). Empty means full refresh.
+       * Optional alarm-reference prefix scoping the feed to an equipment
+       * sub-tree. Empty streams every active alarm.
        * </pre>
        *
-       * <code>string alarm_filter_prefix = 3;</code>
+       * <code>string alarm_filter_prefix = 2;</code>
        * @param value The bytes for alarmFilterPrefix to set.
        * @return This builder for chaining.
        */
@@ -81762,28 +81326,28 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
         if (value == null) { throw new NullPointerException(); }
         checkByteStringIsUtf8(value);
         alarmFilterPrefix_ = value;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
 
-      // @@protoc_insertion_point(builder_scope:mxaccess_gateway.v1.QueryActiveAlarmsRequest)
+      // @@protoc_insertion_point(builder_scope:mxaccess_gateway.v1.StreamAlarmsRequest)
     }
 
-    // @@protoc_insertion_point(class_scope:mxaccess_gateway.v1.QueryActiveAlarmsRequest)
-    private static final mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest DEFAULT_INSTANCE;
+    // @@protoc_insertion_point(class_scope:mxaccess_gateway.v1.StreamAlarmsRequest)
+    private static final mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest DEFAULT_INSTANCE;
     static {
-      DEFAULT_INSTANCE = new mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest();
+      DEFAULT_INSTANCE = new mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest();
     }
 
-    public static mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest getDefaultInstance() {
+    public static mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }
 
-    private static final com.google.protobuf.Parser<QueryActiveAlarmsRequest>
-        PARSER = new com.google.protobuf.AbstractParser<QueryActiveAlarmsRequest>() {
+    private static final com.google.protobuf.Parser<StreamAlarmsRequest>
+        PARSER = new com.google.protobuf.AbstractParser<StreamAlarmsRequest>() {
       @java.lang.Override
-      public QueryActiveAlarmsRequest parsePartialFrom(
+      public StreamAlarmsRequest parsePartialFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
@@ -81802,17 +81366,1177 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       }
     };
 
-    public static com.google.protobuf.Parser<QueryActiveAlarmsRequest> parser() {
+    public static com.google.protobuf.Parser<StreamAlarmsRequest> parser() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.protobuf.Parser<QueryActiveAlarmsRequest> getParserForType() {
+    public com.google.protobuf.Parser<StreamAlarmsRequest> getParserForType() {
       return PARSER;
     }
 
     @java.lang.Override
-    public mxaccess_gateway.v1.MxaccessGateway.QueryActiveAlarmsRequest getDefaultInstanceForType() {
+    public mxaccess_gateway.v1.MxaccessGateway.StreamAlarmsRequest getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  public interface AlarmFeedMessageOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:mxaccess_gateway.v1.AlarmFeedMessage)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     * @return Whether the activeAlarm field is set.
+     */
+    boolean hasActiveAlarm();
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     * @return The activeAlarm.
+     */
+    mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot getActiveAlarm();
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     */
+    mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder getActiveAlarmOrBuilder();
+
+    /**
+     * <pre>
+     * Sentinel: the initial snapshot is fully delivered and `transition`
+     * messages follow. Always true when present.
+     * </pre>
+     *
+     * <code>bool snapshot_complete = 2;</code>
+     * @return Whether the snapshotComplete field is set.
+     */
+    boolean hasSnapshotComplete();
+    /**
+     * <pre>
+     * Sentinel: the initial snapshot is fully delivered and `transition`
+     * messages follow. Always true when present.
+     * </pre>
+     *
+     * <code>bool snapshot_complete = 2;</code>
+     * @return The snapshotComplete.
+     */
+    boolean getSnapshotComplete();
+
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     * @return Whether the transition field is set.
+     */
+    boolean hasTransition();
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     * @return The transition.
+     */
+    mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent getTransition();
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     */
+    mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder getTransitionOrBuilder();
+
+    mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.PayloadCase getPayloadCase();
+  }
+  /**
+   * <pre>
+   * One message on the StreamAlarms feed. The stream opens with one
+   * `active_alarm` per currently-active alarm, then a single
+   * `snapshot_complete`, then a `transition` for every subsequent change.
+   * </pre>
+   *
+   * Protobuf type {@code mxaccess_gateway.v1.AlarmFeedMessage}
+   */
+  public static final class AlarmFeedMessage extends
+      com.google.protobuf.GeneratedMessage implements
+      // @@protoc_insertion_point(message_implements:mxaccess_gateway.v1.AlarmFeedMessage)
+      AlarmFeedMessageOrBuilder {
+  private static final long serialVersionUID = 0L;
+    static {
+      com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
+        com.google.protobuf.RuntimeVersion.RuntimeDomain.PUBLIC,
+        /* major= */ 4,
+        /* minor= */ 33,
+        /* patch= */ 1,
+        /* suffix= */ "",
+        "AlarmFeedMessage");
+    }
+    // Use AlarmFeedMessage.newBuilder() to construct.
+    private AlarmFeedMessage(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+    }
+    private AlarmFeedMessage() {
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_AlarmFeedMessage_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.class, mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.Builder.class);
+    }
+
+    private int payloadCase_ = 0;
+    @SuppressWarnings("serial")
+    private java.lang.Object payload_;
+    public enum PayloadCase
+        implements com.google.protobuf.Internal.EnumLite,
+            com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+      ACTIVE_ALARM(1),
+      SNAPSHOT_COMPLETE(2),
+      TRANSITION(3),
+      PAYLOAD_NOT_SET(0);
+      private final int value;
+      private PayloadCase(int value) {
+        this.value = value;
+      }
+      /**
+       * @param value The number of the enum to look for.
+       * @return The enum associated with the given number.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static PayloadCase valueOf(int value) {
+        return forNumber(value);
+      }
+
+      public static PayloadCase forNumber(int value) {
+        switch (value) {
+          case 1: return ACTIVE_ALARM;
+          case 2: return SNAPSHOT_COMPLETE;
+          case 3: return TRANSITION;
+          case 0: return PAYLOAD_NOT_SET;
+          default: return null;
+        }
+      }
+      public int getNumber() {
+        return this.value;
+      }
+    };
+
+    public PayloadCase
+    getPayloadCase() {
+      return PayloadCase.forNumber(
+          payloadCase_);
+    }
+
+    public static final int ACTIVE_ALARM_FIELD_NUMBER = 1;
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     * @return Whether the activeAlarm field is set.
+     */
+    @java.lang.Override
+    public boolean hasActiveAlarm() {
+      return payloadCase_ == 1;
+    }
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     * @return The activeAlarm.
+     */
+    @java.lang.Override
+    public mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot getActiveAlarm() {
+      if (payloadCase_ == 1) {
+         return (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_;
+      }
+      return mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+    }
+    /**
+     * <pre>
+     * Part of the initial active-alarm snapshot (ConditionRefresh).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+     */
+    @java.lang.Override
+    public mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder getActiveAlarmOrBuilder() {
+      if (payloadCase_ == 1) {
+         return (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_;
+      }
+      return mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+    }
+
+    public static final int SNAPSHOT_COMPLETE_FIELD_NUMBER = 2;
+    /**
+     * <pre>
+     * Sentinel: the initial snapshot is fully delivered and `transition`
+     * messages follow. Always true when present.
+     * </pre>
+     *
+     * <code>bool snapshot_complete = 2;</code>
+     * @return Whether the snapshotComplete field is set.
+     */
+    @java.lang.Override
+    public boolean hasSnapshotComplete() {
+      return payloadCase_ == 2;
+    }
+    /**
+     * <pre>
+     * Sentinel: the initial snapshot is fully delivered and `transition`
+     * messages follow. Always true when present.
+     * </pre>
+     *
+     * <code>bool snapshot_complete = 2;</code>
+     * @return The snapshotComplete.
+     */
+    @java.lang.Override
+    public boolean getSnapshotComplete() {
+      if (payloadCase_ == 2) {
+        return (java.lang.Boolean) payload_;
+      }
+      return false;
+    }
+
+    public static final int TRANSITION_FIELD_NUMBER = 3;
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     * @return Whether the transition field is set.
+     */
+    @java.lang.Override
+    public boolean hasTransition() {
+      return payloadCase_ == 3;
+    }
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     * @return The transition.
+     */
+    @java.lang.Override
+    public mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent getTransition() {
+      if (payloadCase_ == 3) {
+         return (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_;
+      }
+      return mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+    }
+    /**
+     * <pre>
+     * A live alarm state change (raise / acknowledge / clear).
+     * </pre>
+     *
+     * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+     */
+    @java.lang.Override
+    public mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder getTransitionOrBuilder() {
+      if (payloadCase_ == 3) {
+         return (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_;
+      }
+      return mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (payloadCase_ == 1) {
+        output.writeMessage(1, (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_);
+      }
+      if (payloadCase_ == 2) {
+        output.writeBool(
+            2, (boolean)((java.lang.Boolean) payload_));
+      }
+      if (payloadCase_ == 3) {
+        output.writeMessage(3, (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (payloadCase_ == 1) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_);
+      }
+      if (payloadCase_ == 2) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBoolSize(
+              2, (boolean)((java.lang.Boolean) payload_));
+      }
+      if (payloadCase_ == 3) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(3, (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage)) {
+        return super.equals(obj);
+      }
+      mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage other = (mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage) obj;
+
+      if (!getPayloadCase().equals(other.getPayloadCase())) return false;
+      switch (payloadCase_) {
+        case 1:
+          if (!getActiveAlarm()
+              .equals(other.getActiveAlarm())) return false;
+          break;
+        case 2:
+          if (getSnapshotComplete()
+              != other.getSnapshotComplete()) return false;
+          break;
+        case 3:
+          if (!getTransition()
+              .equals(other.getTransition())) return false;
+          break;
+        case 0:
+        default:
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      switch (payloadCase_) {
+        case 1:
+          hash = (37 * hash) + ACTIVE_ALARM_FIELD_NUMBER;
+          hash = (53 * hash) + getActiveAlarm().hashCode();
+          break;
+        case 2:
+          hash = (37 * hash) + SNAPSHOT_COMPLETE_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
+              getSnapshotComplete());
+          break;
+        case 3:
+          hash = (37 * hash) + TRANSITION_FIELD_NUMBER;
+          hash = (53 * hash) + getTransition().hashCode();
+          break;
+        case 0:
+        default:
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseWithIOException(PARSER, input);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseWithIOException(PARSER, input);
+    }
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessage
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * <pre>
+     * One message on the StreamAlarms feed. The stream opens with one
+     * `active_alarm` per currently-active alarm, then a single
+     * `snapshot_complete`, then a `transition` for every subsequent change.
+     * </pre>
+     *
+     * Protobuf type {@code mxaccess_gateway.v1.AlarmFeedMessage}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:mxaccess_gateway.v1.AlarmFeedMessage)
+        mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessageOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_AlarmFeedMessage_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.class, mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.Builder.class);
+      }
+
+      // Construct using mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.newBuilder()
+      private Builder() {
+
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        if (activeAlarmBuilder_ != null) {
+          activeAlarmBuilder_.clear();
+        }
+        if (transitionBuilder_ != null) {
+          transitionBuilder_.clear();
+        }
+        payloadCase_ = 0;
+        payload_ = null;
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return mxaccess_gateway.v1.MxaccessGateway.internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor;
+      }
+
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage getDefaultInstanceForType() {
+        return mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage build() {
+        mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage buildPartial() {
+        mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage result = new mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage(this);
+        if (bitField0_ != 0) { buildPartial0(result); }
+        buildPartialOneofs(result);
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage result) {
+        int from_bitField0_ = bitField0_;
+      }
+
+      private void buildPartialOneofs(mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage result) {
+        result.payloadCase_ = payloadCase_;
+        result.payload_ = this.payload_;
+        if (payloadCase_ == 1 &&
+            activeAlarmBuilder_ != null) {
+          result.payload_ = activeAlarmBuilder_.build();
+        }
+        if (payloadCase_ == 3 &&
+            transitionBuilder_ != null) {
+          result.payload_ = transitionBuilder_.build();
+        }
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage) {
+          return mergeFrom((mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage other) {
+        if (other == mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage.getDefaultInstance()) return this;
+        switch (other.getPayloadCase()) {
+          case ACTIVE_ALARM: {
+            mergeActiveAlarm(other.getActiveAlarm());
+            break;
+          }
+          case SNAPSHOT_COMPLETE: {
+            setSnapshotComplete(other.getSnapshotComplete());
+            break;
+          }
+          case TRANSITION: {
+            mergeTransition(other.getTransition());
+            break;
+          }
+          case PAYLOAD_NOT_SET: {
+            break;
+          }
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10: {
+                input.readMessage(
+                    internalGetActiveAlarmFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                payloadCase_ = 1;
+                break;
+              } // case 10
+              case 16: {
+                payload_ = input.readBool();
+                payloadCase_ = 2;
+                break;
+              } // case 16
+              case 26: {
+                input.readMessage(
+                    internalGetTransitionFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                payloadCase_ = 3;
+                break;
+              } // case 26
+              default: {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+      private int payloadCase_ = 0;
+      private java.lang.Object payload_;
+      public PayloadCase
+          getPayloadCase() {
+        return PayloadCase.forNumber(
+            payloadCase_);
+      }
+
+      public Builder clearPayload() {
+        payloadCase_ = 0;
+        payload_ = null;
+        onChanged();
+        return this;
+      }
+
+      private int bitField0_;
+
+      private com.google.protobuf.SingleFieldBuilder<
+          mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.Builder, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder> activeAlarmBuilder_;
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       * @return Whether the activeAlarm field is set.
+       */
+      @java.lang.Override
+      public boolean hasActiveAlarm() {
+        return payloadCase_ == 1;
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       * @return The activeAlarm.
+       */
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot getActiveAlarm() {
+        if (activeAlarmBuilder_ == null) {
+          if (payloadCase_ == 1) {
+            return (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_;
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+        } else {
+          if (payloadCase_ == 1) {
+            return activeAlarmBuilder_.getMessage();
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+        }
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      public Builder setActiveAlarm(mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot value) {
+        if (activeAlarmBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          payload_ = value;
+          onChanged();
+        } else {
+          activeAlarmBuilder_.setMessage(value);
+        }
+        payloadCase_ = 1;
+        return this;
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      public Builder setActiveAlarm(
+          mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.Builder builderForValue) {
+        if (activeAlarmBuilder_ == null) {
+          payload_ = builderForValue.build();
+          onChanged();
+        } else {
+          activeAlarmBuilder_.setMessage(builderForValue.build());
+        }
+        payloadCase_ = 1;
+        return this;
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      public Builder mergeActiveAlarm(mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot value) {
+        if (activeAlarmBuilder_ == null) {
+          if (payloadCase_ == 1 &&
+              payload_ != mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance()) {
+            payload_ = mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.newBuilder((mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_)
+                .mergeFrom(value).buildPartial();
+          } else {
+            payload_ = value;
+          }
+          onChanged();
+        } else {
+          if (payloadCase_ == 1) {
+            activeAlarmBuilder_.mergeFrom(value);
+          } else {
+            activeAlarmBuilder_.setMessage(value);
+          }
+        }
+        payloadCase_ = 1;
+        return this;
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      public Builder clearActiveAlarm() {
+        if (activeAlarmBuilder_ == null) {
+          if (payloadCase_ == 1) {
+            payloadCase_ = 0;
+            payload_ = null;
+            onChanged();
+          }
+        } else {
+          if (payloadCase_ == 1) {
+            payloadCase_ = 0;
+            payload_ = null;
+          }
+          activeAlarmBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      public mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.Builder getActiveAlarmBuilder() {
+        return internalGetActiveAlarmFieldBuilder().getBuilder();
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder getActiveAlarmOrBuilder() {
+        if ((payloadCase_ == 1) && (activeAlarmBuilder_ != null)) {
+          return activeAlarmBuilder_.getMessageOrBuilder();
+        } else {
+          if (payloadCase_ == 1) {
+            return (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_;
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+        }
+      }
+      /**
+       * <pre>
+       * Part of the initial active-alarm snapshot (ConditionRefresh).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.ActiveAlarmSnapshot active_alarm = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.Builder, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder> 
+          internalGetActiveAlarmFieldBuilder() {
+        if (activeAlarmBuilder_ == null) {
+          if (!(payloadCase_ == 1)) {
+            payload_ = mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.getDefaultInstance();
+          }
+          activeAlarmBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot.Builder, mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshotOrBuilder>(
+                  (mxaccess_gateway.v1.MxaccessGateway.ActiveAlarmSnapshot) payload_,
+                  getParentForChildren(),
+                  isClean());
+          payload_ = null;
+        }
+        payloadCase_ = 1;
+        onChanged();
+        return activeAlarmBuilder_;
+      }
+
+      /**
+       * <pre>
+       * Sentinel: the initial snapshot is fully delivered and `transition`
+       * messages follow. Always true when present.
+       * </pre>
+       *
+       * <code>bool snapshot_complete = 2;</code>
+       * @return Whether the snapshotComplete field is set.
+       */
+      public boolean hasSnapshotComplete() {
+        return payloadCase_ == 2;
+      }
+      /**
+       * <pre>
+       * Sentinel: the initial snapshot is fully delivered and `transition`
+       * messages follow. Always true when present.
+       * </pre>
+       *
+       * <code>bool snapshot_complete = 2;</code>
+       * @return The snapshotComplete.
+       */
+      public boolean getSnapshotComplete() {
+        if (payloadCase_ == 2) {
+          return (java.lang.Boolean) payload_;
+        }
+        return false;
+      }
+      /**
+       * <pre>
+       * Sentinel: the initial snapshot is fully delivered and `transition`
+       * messages follow. Always true when present.
+       * </pre>
+       *
+       * <code>bool snapshot_complete = 2;</code>
+       * @param value The snapshotComplete to set.
+       * @return This builder for chaining.
+       */
+      public Builder setSnapshotComplete(boolean value) {
+
+        payloadCase_ = 2;
+        payload_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <pre>
+       * Sentinel: the initial snapshot is fully delivered and `transition`
+       * messages follow. Always true when present.
+       * </pre>
+       *
+       * <code>bool snapshot_complete = 2;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearSnapshotComplete() {
+        if (payloadCase_ == 2) {
+          payloadCase_ = 0;
+          payload_ = null;
+          onChanged();
+        }
+        return this;
+      }
+
+      private com.google.protobuf.SingleFieldBuilder<
+          mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.Builder, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder> transitionBuilder_;
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       * @return Whether the transition field is set.
+       */
+      @java.lang.Override
+      public boolean hasTransition() {
+        return payloadCase_ == 3;
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       * @return The transition.
+       */
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent getTransition() {
+        if (transitionBuilder_ == null) {
+          if (payloadCase_ == 3) {
+            return (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_;
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+        } else {
+          if (payloadCase_ == 3) {
+            return transitionBuilder_.getMessage();
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+        }
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      public Builder setTransition(mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent value) {
+        if (transitionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          payload_ = value;
+          onChanged();
+        } else {
+          transitionBuilder_.setMessage(value);
+        }
+        payloadCase_ = 3;
+        return this;
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      public Builder setTransition(
+          mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.Builder builderForValue) {
+        if (transitionBuilder_ == null) {
+          payload_ = builderForValue.build();
+          onChanged();
+        } else {
+          transitionBuilder_.setMessage(builderForValue.build());
+        }
+        payloadCase_ = 3;
+        return this;
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      public Builder mergeTransition(mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent value) {
+        if (transitionBuilder_ == null) {
+          if (payloadCase_ == 3 &&
+              payload_ != mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance()) {
+            payload_ = mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.newBuilder((mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_)
+                .mergeFrom(value).buildPartial();
+          } else {
+            payload_ = value;
+          }
+          onChanged();
+        } else {
+          if (payloadCase_ == 3) {
+            transitionBuilder_.mergeFrom(value);
+          } else {
+            transitionBuilder_.setMessage(value);
+          }
+        }
+        payloadCase_ = 3;
+        return this;
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      public Builder clearTransition() {
+        if (transitionBuilder_ == null) {
+          if (payloadCase_ == 3) {
+            payloadCase_ = 0;
+            payload_ = null;
+            onChanged();
+          }
+        } else {
+          if (payloadCase_ == 3) {
+            payloadCase_ = 0;
+            payload_ = null;
+          }
+          transitionBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      public mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.Builder getTransitionBuilder() {
+        return internalGetTransitionFieldBuilder().getBuilder();
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      @java.lang.Override
+      public mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder getTransitionOrBuilder() {
+        if ((payloadCase_ == 3) && (transitionBuilder_ != null)) {
+          return transitionBuilder_.getMessageOrBuilder();
+        } else {
+          if (payloadCase_ == 3) {
+            return (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_;
+          }
+          return mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+        }
+      }
+      /**
+       * <pre>
+       * A live alarm state change (raise / acknowledge / clear).
+       * </pre>
+       *
+       * <code>.mxaccess_gateway.v1.OnAlarmTransitionEvent transition = 3;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.Builder, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder> 
+          internalGetTransitionFieldBuilder() {
+        if (transitionBuilder_ == null) {
+          if (!(payloadCase_ == 3)) {
+            payload_ = mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.getDefaultInstance();
+          }
+          transitionBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent.Builder, mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEventOrBuilder>(
+                  (mxaccess_gateway.v1.MxaccessGateway.OnAlarmTransitionEvent) payload_,
+                  getParentForChildren(),
+                  isClean());
+          payload_ = null;
+        }
+        payloadCase_ = 3;
+        onChanged();
+        return transitionBuilder_;
+      }
+
+      // @@protoc_insertion_point(builder_scope:mxaccess_gateway.v1.AlarmFeedMessage)
+    }
+
+    // @@protoc_insertion_point(class_scope:mxaccess_gateway.v1.AlarmFeedMessage)
+    private static final mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage();
+    }
+
+    public static mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<AlarmFeedMessage>
+        PARSER = new com.google.protobuf.AbstractParser<AlarmFeedMessage>() {
+      @java.lang.Override
+      public AlarmFeedMessage parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        Builder builder = newBuilder();
+        try {
+          builder.mergeFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.setUnfinishedMessage(builder.buildPartial());
+        } catch (com.google.protobuf.UninitializedMessageException e) {
+          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+        } catch (java.io.IOException e) {
+          throw new com.google.protobuf.InvalidProtocolBufferException(e)
+              .setUnfinishedMessage(builder.buildPartial());
+        }
+        return builder.buildPartial();
+      }
+    };
+
+    public static com.google.protobuf.Parser<AlarmFeedMessage> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<AlarmFeedMessage> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public mxaccess_gateway.v1.MxaccessGateway.AlarmFeedMessage getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }
 
@@ -93645,10 +94369,15 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     com.google.protobuf.GeneratedMessage.FieldAccessorTable
       internal_static_mxaccess_gateway_v1_AcknowledgeAlarmReply_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor;
+    internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor;
   private static final 
     com.google.protobuf.GeneratedMessage.FieldAccessorTable
-      internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_fieldAccessorTable;
+      internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_mxaccess_gateway_v1_AlarmFeedMessage_fieldAccessorTable;
   private static final com.google.protobuf.Descriptors.Descriptor
     internal_static_mxaccess_gateway_v1_MxStatusProxy_descriptor;
   private static final 
@@ -94054,182 +94783,186 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
       "(\t\022\030\n\020operator_comment\030\013 \001(\t\0223\n\rcurrent_" +
       "value\030\014 \001(\0132\034.mxaccess_gateway.v1.MxValu" +
       "e\0221\n\013limit_value\030\r \001(\0132\034.mxaccess_gatewa" +
-      "y.v1.MxValue\"\222\001\n\027AcknowledgeAlarmRequest" +
-      "\022\022\n\nsession_id\030\001 \001(\t\022\035\n\025client_correlati" +
-      "on_id\030\002 \001(\t\022\034\n\024alarm_full_reference\030\003 \001(" +
-      "\t\022\017\n\007comment\030\004 \001(\t\022\025\n\roperator_user\030\005 \001(" +
-      "\t\"\363\001\n\025AcknowledgeAlarmReply\022\022\n\nsession_i" +
-      "d\030\001 \001(\t\022\026\n\016correlation_id\030\002 \001(\t\022<\n\017proto" +
-      "col_status\030\003 \001(\0132#.mxaccess_gateway.v1.P" +
-      "rotocolStatus\022\024\n\007hresult\030\004 \001(\005H\000\210\001\001\0222\n\006s" +
-      "tatus\030\005 \001(\0132\".mxaccess_gateway.v1.MxStat" +
-      "usProxy\022\032\n\022diagnostic_message\030\006 \001(\tB\n\n\010_" +
-      "hresult\"j\n\030QueryActiveAlarmsRequest\022\022\n\ns" +
-      "ession_id\030\001 \001(\t\022\035\n\025client_correlation_id" +
-      "\030\002 \001(\t\022\033\n\023alarm_filter_prefix\030\003 \001(\t\"\353\001\n\r" +
-      "MxStatusProxy\022\017\n\007success\030\001 \001(\005\0227\n\010catego" +
-      "ry\030\002 \001(\0162%.mxaccess_gateway.v1.MxStatusC" +
-      "ategory\0228\n\013detected_by\030\003 \001(\0162#.mxaccess_" +
-      "gateway.v1.MxStatusSource\022\016\n\006detail\030\004 \001(" +
-      "\005\022\024\n\014raw_category\030\005 \001(\005\022\027\n\017raw_detected_" +
-      "by\030\006 \001(\005\022\027\n\017diagnostic_text\030\007 \001(\t\"\247\003\n\007Mx" +
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-      "way.v1.MxDataType\022\024\n\014variant_type\030\002 \001(\t\022" +
-      "\017\n\007is_null\030\003 \001(\010\022\026\n\016raw_diagnostic\030\004 \001(\t" +
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-      ".mxaccess_gateway.v1.MxArrayH\000\022\023\n\traw_va" +
-      "lue\030\022 \001(\014H\000B\006\n\004kind\"\376\004\n\007MxArray\022:\n\021eleme" +
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-      ".MxDataType\022\024\n\014variant_type\030\002 \001(\t\022\022\n\ndim" +
-      "ensions\030\003 \003(\r\022\026\n\016raw_diagnostic\030\004 \001(\t\022\035\n" +
-      "\025raw_element_data_type\030\005 \001(\005\0225\n\013bool_val" +
-      "ues\030\n \001(\0132\036.mxaccess_gateway.v1.BoolArra" +
-      "yH\000\0227\n\014int32_values\030\013 \001(\0132\037.mxaccess_gat" +
-      "eway.v1.Int32ArrayH\000\0227\n\014int64_values\030\014 \001" +
-      "(\0132\037.mxaccess_gateway.v1.Int64ArrayH\000\0227\n" +
-      "\014float_values\030\r \001(\0132\037.mxaccess_gateway.v" +
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-      "mxaccess_gateway.v1.DoubleArrayH\000\0229\n\rstr" +
-      "ing_values\030\017 \001(\0132 .mxaccess_gateway.v1.S" +
-      "tringArrayH\000\022?\n\020timestamp_values\030\020 \001(\0132#" +
-      ".mxaccess_gateway.v1.TimestampArrayH\000\0223\n" +
-      "\nraw_values\030\021 \001(\0132\035.mxaccess_gateway.v1." +
-      "RawArrayH\000B\010\n\006values\"\033\n\tBoolArray\022\016\n\006val" +
-      "ues\030\001 \003(\010\"\034\n\nInt32Array\022\016\n\006values\030\001 \003(\005\"" +
-      "\034\n\nInt64Array\022\016\n\006values\030\001 \003(\003\"\034\n\nFloatAr" +
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-      "lues\030\001 \003(\001\"\035\n\013StringArray\022\016\n\006values\030\001 \003(" +
-      "\t\"<\n\016TimestampArray\022*\n\006values\030\001 \003(\0132\032.go" +
-      "ogle.protobuf.Timestamp\"\032\n\010RawArray\022\016\n\006v" +
-      "alues\030\001 \003(\014\"X\n\016ProtocolStatus\0225\n\004code\030\001 " +
-      "\001(\0162\'.mxaccess_gateway.v1.ProtocolStatus" +
-      "Code\022\017\n\007message\030\002 \001(\t*\237\013\n\rMxCommandKind\022" +
-      "\037\n\033MX_COMMAND_KIND_UNSPECIFIED\020\000\022\034\n\030MX_C" +
-      "OMMAND_KIND_REGISTER\020\001\022\036\n\032MX_COMMAND_KIN" +
-      "D_UNREGISTER\020\002\022\034\n\030MX_COMMAND_KIND_ADD_IT" +
-      "EM\020\003\022\035\n\031MX_COMMAND_KIND_ADD_ITEM2\020\004\022\037\n\033M" +
-      "X_COMMAND_KIND_REMOVE_ITEM\020\005\022\032\n\026MX_COMMA" +
-      "ND_KIND_ADVISE\020\006\022\035\n\031MX_COMMAND_KIND_UN_A" +
-      "DVISE\020\007\022&\n\"MX_COMMAND_KIND_ADVISE_SUPERV" +
-      "ISORY\020\010\022%\n!MX_COMMAND_KIND_ADD_BUFFERED_" +
-      "ITEM\020\t\0220\n,MX_COMMAND_KIND_SET_BUFFERED_U",
-      "PDATE_INTERVAL\020\n\022\033\n\027MX_COMMAND_KIND_SUSP" +
-      "END\020\013\022\034\n\030MX_COMMAND_KIND_ACTIVATE\020\014\022\031\n\025M" +
-      "X_COMMAND_KIND_WRITE\020\r\022\032\n\026MX_COMMAND_KIN" +
-      "D_WRITE2\020\016\022!\n\035MX_COMMAND_KIND_WRITE_SECU" +
-      "RED\020\017\022\"\n\036MX_COMMAND_KIND_WRITE_SECURED2\020" +
-      "\020\022%\n!MX_COMMAND_KIND_AUTHENTICATE_USER\020\021" +
-      "\022(\n$MX_COMMAND_KIND_ARCHESTRA_USER_TO_ID" +
-      "\020\022\022!\n\035MX_COMMAND_KIND_ADD_ITEM_BULK\020\023\022$\n" +
-      " MX_COMMAND_KIND_ADVISE_ITEM_BULK\020\024\022$\n M" +
-      "X_COMMAND_KIND_REMOVE_ITEM_BULK\020\025\022\'\n#MX_" +
-      "COMMAND_KIND_UN_ADVISE_ITEM_BULK\020\026\022\"\n\036MX" +
-      "_COMMAND_KIND_SUBSCRIBE_BULK\020\027\022$\n MX_COM" +
-      "MAND_KIND_UNSUBSCRIBE_BULK\020\030\022$\n MX_COMMA" +
-      "ND_KIND_SUBSCRIBE_ALARMS\020\031\022&\n\"MX_COMMAND" +
-      "_KIND_UNSUBSCRIBE_ALARMS\020\032\022%\n!MX_COMMAND" +
-      "_KIND_ACKNOWLEDGE_ALARM\020\033\022\'\n#MX_COMMAND_" +
-      "KIND_QUERY_ACTIVE_ALARMS\020\034\022-\n)MX_COMMAND" +
-      "_KIND_ACKNOWLEDGE_ALARM_BY_NAME\020\035\022\036\n\032MX_" +
-      "COMMAND_KIND_WRITE_BULK\020\036\022\037\n\033MX_COMMAND_" +
-      "KIND_WRITE2_BULK\020\037\022&\n\"MX_COMMAND_KIND_WR" +
-      "ITE_SECURED_BULK\020 \022\'\n#MX_COMMAND_KIND_WR" +
-      "ITE_SECURED2_BULK\020!\022\035\n\031MX_COMMAND_KIND_R" +
-      "EAD_BULK\020\"\022\030\n\024MX_COMMAND_KIND_PING\020d\022%\n!" +
-      "MX_COMMAND_KIND_GET_SESSION_STATE\020e\022#\n\037M" +
-      "X_COMMAND_KIND_GET_WORKER_INFO\020f\022 \n\034MX_C" +
-      "OMMAND_KIND_DRAIN_EVENTS\020g\022#\n\037MX_COMMAND" +
-      "_KIND_SHUTDOWN_WORKER\020h*\371\001\n\rMxEventFamil" +
-      "y\022\037\n\033MX_EVENT_FAMILY_UNSPECIFIED\020\000\022\"\n\036MX" +
-      "_EVENT_FAMILY_ON_DATA_CHANGE\020\001\022%\n!MX_EVE" +
-      "NT_FAMILY_ON_WRITE_COMPLETE\020\002\022&\n\"MX_EVEN" +
-      "T_FAMILY_OPERATION_COMPLETE\020\003\022+\n\'MX_EVEN" +
-      "T_FAMILY_ON_BUFFERED_DATA_CHANGE\020\004\022\'\n#MX" +
-      "_EVENT_FAMILY_ON_ALARM_TRANSITION\020\005*\312\001\n\023" +
-      "AlarmTransitionKind\022%\n!ALARM_TRANSITION_" +
-      "KIND_UNSPECIFIED\020\000\022\037\n\033ALARM_TRANSITION_K" +
-      "IND_RAISE\020\001\022%\n!ALARM_TRANSITION_KIND_ACK" +
-      "NOWLEDGE\020\002\022\037\n\033ALARM_TRANSITION_KIND_CLEA" +
-      "R\020\003\022#\n\037ALARM_TRANSITION_KIND_RETRIGGER\020\004" +
-      "*\252\001\n\023AlarmConditionState\022%\n!ALARM_CONDIT" +
-      "ION_STATE_UNSPECIFIED\020\000\022 \n\034ALARM_CONDITI" +
-      "ON_STATE_ACTIVE\020\001\022&\n\"ALARM_CONDITION_STA" +
-      "TE_ACTIVE_ACKED\020\002\022\"\n\036ALARM_CONDITION_STA" +
-      "TE_INACTIVE\020\003*\245\003\n\020MxStatusCategory\022\"\n\036MX" +
-      "_STATUS_CATEGORY_UNSPECIFIED\020\000\022\036\n\032MX_STA" +
-      "TUS_CATEGORY_UNKNOWN\020\001\022\031\n\025MX_STATUS_CATE" +
-      "GORY_OK\020\002\022\036\n\032MX_STATUS_CATEGORY_PENDING\020" +
-      "\003\022\036\n\032MX_STATUS_CATEGORY_WARNING\020\004\022*\n&MX_" +
-      "STATUS_CATEGORY_COMMUNICATION_ERROR\020\005\022*\n" +
-      "&MX_STATUS_CATEGORY_CONFIGURATION_ERROR\020" +
-      "\006\022(\n$MX_STATUS_CATEGORY_OPERATIONAL_ERRO" +
-      "R\020\007\022%\n!MX_STATUS_CATEGORY_SECURITY_ERROR" +
-      "\020\010\022%\n!MX_STATUS_CATEGORY_SOFTWARE_ERROR\020" +
-      "\t\022\"\n\036MX_STATUS_CATEGORY_OTHER_ERROR\020\n*\312\002" +
-      "\n\016MxStatusSource\022 \n\034MX_STATUS_SOURCE_UNS" +
-      "PECIFIED\020\000\022\034\n\030MX_STATUS_SOURCE_UNKNOWN\020\001" +
-      "\022#\n\037MX_STATUS_SOURCE_REQUESTING_LMX\020\002\022#\n" +
-      "\037MX_STATUS_SOURCE_RESPONDING_LMX\020\003\022#\n\037MX" +
-      "_STATUS_SOURCE_REQUESTING_NMX\020\004\022#\n\037MX_ST" +
-      "ATUS_SOURCE_RESPONDING_NMX\020\005\0221\n-MX_STATU" +
-      "S_SOURCE_REQUESTING_AUTOMATION_OBJECT\020\006\022" +
-      "1\n-MX_STATUS_SOURCE_RESPONDING_AUTOMATIO" +
-      "N_OBJECT\020\007*\335\004\n\nMxDataType\022\034\n\030MX_DATA_TYP" +
-      "E_UNSPECIFIED\020\000\022\030\n\024MX_DATA_TYPE_UNKNOWN\020" +
-      "\001\022\030\n\024MX_DATA_TYPE_NO_DATA\020\002\022\030\n\024MX_DATA_T" +
-      "YPE_BOOLEAN\020\003\022\030\n\024MX_DATA_TYPE_INTEGER\020\004\022" +
-      "\026\n\022MX_DATA_TYPE_FLOAT\020\005\022\027\n\023MX_DATA_TYPE_" +
-      "DOUBLE\020\006\022\027\n\023MX_DATA_TYPE_STRING\020\007\022\025\n\021MX_" +
-      "DATA_TYPE_TIME\020\010\022\035\n\031MX_DATA_TYPE_ELAPSED" +
-      "_TIME\020\t\022\037\n\033MX_DATA_TYPE_REFERENCE_TYPE\020\n" +
-      "\022\034\n\030MX_DATA_TYPE_STATUS_TYPE\020\013\022\025\n\021MX_DAT" +
-      "A_TYPE_ENUM\020\014\022-\n)MX_DATA_TYPE_SECURITY_C" +
-      "LASSIFICATION_ENUM\020\r\022\"\n\036MX_DATA_TYPE_DAT" +
-      "A_QUALITY_TYPE\020\016\022\037\n\033MX_DATA_TYPE_QUALIFI" +
-      "ED_ENUM\020\017\022!\n\035MX_DATA_TYPE_QUALIFIED_STRU" +
-      "CT\020\020\022)\n%MX_DATA_TYPE_INTERNATIONALIZED_S" +
-      "TRING\020\021\022\033\n\027MX_DATA_TYPE_BIG_STRING\020\022\022\024\n\020" +
-      "MX_DATA_TYPE_END\020\023*\243\003\n\022ProtocolStatusCod" +
-      "e\022$\n PROTOCOL_STATUS_CODE_UNSPECIFIED\020\000\022" +
-      "\033\n\027PROTOCOL_STATUS_CODE_OK\020\001\022(\n$PROTOCOL" +
-      "_STATUS_CODE_INVALID_REQUEST\020\002\022*\n&PROTOC" +
-      "OL_STATUS_CODE_SESSION_NOT_FOUND\020\003\022*\n&PR" +
-      "OTOCOL_STATUS_CODE_SESSION_NOT_READY\020\004\022+" +
-      "\n\'PROTOCOL_STATUS_CODE_WORKER_UNAVAILABL" +
-      "E\020\005\022 \n\034PROTOCOL_STATUS_CODE_TIMEOUT\020\006\022!\n" +
-      "\035PROTOCOL_STATUS_CODE_CANCELED\020\007\022+\n\'PROT" +
-      "OCOL_STATUS_CODE_PROTOCOL_VIOLATION\020\010\022)\n" +
-      "%PROTOCOL_STATUS_CODE_MXACCESS_FAILURE\020\t" +
-      "*\277\002\n\014SessionState\022\035\n\031SESSION_STATE_UNSPE" +
-      "CIFIED\020\000\022\032\n\026SESSION_STATE_CREATING\020\001\022!\n\035" +
-      "SESSION_STATE_STARTING_WORKER\020\002\022\"\n\036SESSI" +
-      "ON_STATE_WAITING_FOR_PIPE\020\003\022\035\n\031SESSION_S" +
-      "TATE_HANDSHAKING\020\004\022%\n!SESSION_STATE_INIT" +
-      "IALIZING_WORKER\020\005\022\027\n\023SESSION_STATE_READY" +
-      "\020\006\022\031\n\025SESSION_STATE_CLOSING\020\007\022\030\n\024SESSION" +
-      "_STATE_CLOSED\020\010\022\031\n\025SESSION_STATE_FAULTED" +
-      "\020\t2\340\004\n\017MxAccessGateway\022]\n\013OpenSession\022\'." +
-      "mxaccess_gateway.v1.OpenSessionRequest\032%" +
-      ".mxaccess_gateway.v1.OpenSessionReply\022`\n" +
-      "\014CloseSession\022(.mxaccess_gateway.v1.Clos" +
-      "eSessionRequest\032&.mxaccess_gateway.v1.Cl" +
-      "oseSessionReply\022T\n\006Invoke\022%.mxaccess_gat" +
-      "eway.v1.MxCommandRequest\032#.mxaccess_gate" +
-      "way.v1.MxCommandReply\022X\n\014StreamEvents\022(." +
-      "mxaccess_gateway.v1.StreamEventsRequest\032" +
-      "\034.mxaccess_gateway.v1.MxEvent0\001\022l\n\020Ackno" +
-      "wledgeAlarm\022,.mxaccess_gateway.v1.Acknow" +
-      "ledgeAlarmRequest\032*.mxaccess_gateway.v1." +
-      "AcknowledgeAlarmReply\022n\n\021QueryActiveAlar" +
-      "ms\022-.mxaccess_gateway.v1.QueryActiveAlar" +
-      "msRequest\032(.mxaccess_gateway.v1.ActiveAl" +
-      "armSnapshot0\001B\034\252\002\031MxGateway.Contracts.Pr" +
-      "otob\006proto3"
+      "y.v1.MxValue\"\220\001\n\027AcknowledgeAlarmRequest" +
+      "\022\035\n\025client_correlation_id\030\002 \001(\t\022\034\n\024alarm" +
+      "_full_reference\030\003 \001(\t\022\017\n\007comment\030\004 \001(\t\022\025" +
+      "\n\roperator_user\030\005 \001(\tJ\004\010\001\020\002R\nsession_id\"" +
+      "\361\001\n\025AcknowledgeAlarmReply\022\026\n\016correlation" +
+      "_id\030\002 \001(\t\022<\n\017protocol_status\030\003 \001(\0132#.mxa" +
+      "ccess_gateway.v1.ProtocolStatus\022\024\n\007hresu" +
+      "lt\030\004 \001(\005H\000\210\001\001\0222\n\006status\030\005 \001(\0132\".mxaccess" +
+      "_gateway.v1.MxStatusProxy\022\032\n\022diagnostic_" +
+      "message\030\006 \001(\tB\n\n\010_hresultJ\004\010\001\020\002R\nsession" +
+      "_id\"Q\n\023StreamAlarmsRequest\022\035\n\025client_cor" +
+      "relation_id\030\001 \001(\t\022\033\n\023alarm_filter_prefix" +
+      "\030\002 \001(\t\"\277\001\n\020AlarmFeedMessage\022@\n\014active_al" +
+      "arm\030\001 \001(\0132(.mxaccess_gateway.v1.ActiveAl" +
+      "armSnapshotH\000\022\033\n\021snapshot_complete\030\002 \001(\010" +
+      "H\000\022A\n\ntransition\030\003 \001(\0132+.mxaccess_gatewa" +
+      "y.v1.OnAlarmTransitionEventH\000B\t\n\007payload" +
+      "\"\353\001\n\rMxStatusProxy\022\017\n\007success\030\001 \001(\005\0227\n\010c" +
+      "ategory\030\002 \001(\0162%.mxaccess_gateway.v1.MxSt" +
+      "atusCategory\0228\n\013detected_by\030\003 \001(\0162#.mxac" +
+      "cess_gateway.v1.MxStatusSource\022\016\n\006detail" +
+      "\030\004 \001(\005\022\024\n\014raw_category\030\005 \001(\005\022\027\n\017raw_dete" +
+      "cted_by\030\006 \001(\005\022\027\n\017diagnostic_text\030\007 \001(\t\"\247" +
+      "\003\n\007MxValue\0222\n\tdata_type\030\001 \001(\0162\037.mxaccess" +
+      "_gateway.v1.MxDataType\022\024\n\014variant_type\030\002" +
+      " \001(\t\022\017\n\007is_null\030\003 \001(\010\022\026\n\016raw_diagnostic\030" +
+      "\004 \001(\t\022\025\n\rraw_data_type\030\005 \001(\005\022\024\n\nbool_val" +
+      "ue\030\n \001(\010H\000\022\025\n\013int32_value\030\013 \001(\005H\000\022\025\n\013int" +
+      "64_value\030\014 \001(\003H\000\022\025\n\013float_value\030\r \001(\002H\000\022" +
+      "\026\n\014double_value\030\016 \001(\001H\000\022\026\n\014string_value\030" +
+      "\017 \001(\tH\000\0225\n\017timestamp_value\030\020 \001(\0132\032.googl" +
+      "e.protobuf.TimestampH\000\0223\n\013array_value\030\021 " +
+      "\001(\0132\034.mxaccess_gateway.v1.MxArrayH\000\022\023\n\tr" +
+      "aw_value\030\022 \001(\014H\000B\006\n\004kind\"\376\004\n\007MxArray\022:\n\021" +
+      "element_data_type\030\001 \001(\0162\037.mxaccess_gatew" +
+      "ay.v1.MxDataType\022\024\n\014variant_type\030\002 \001(\t\022\022" +
+      "\n\ndimensions\030\003 \003(\r\022\026\n\016raw_diagnostic\030\004 \001" +
+      "(\t\022\035\n\025raw_element_data_type\030\005 \001(\005\0225\n\013boo" +
+      "l_values\030\n \001(\0132\036.mxaccess_gateway.v1.Boo" +
+      "lArrayH\000\0227\n\014int32_values\030\013 \001(\0132\037.mxacces" +
+      "s_gateway.v1.Int32ArrayH\000\0227\n\014int64_value" +
+      "s\030\014 \001(\0132\037.mxaccess_gateway.v1.Int64Array" +
+      "H\000\0227\n\014float_values\030\r \001(\0132\037.mxaccess_gate" +
+      "way.v1.FloatArrayH\000\0229\n\rdouble_values\030\016 \001" +
+      "(\0132 .mxaccess_gateway.v1.DoubleArrayH\000\0229" +
+      "\n\rstring_values\030\017 \001(\0132 .mxaccess_gateway" +
+      ".v1.StringArrayH\000\022?\n\020timestamp_values\030\020 " +
+      "\001(\0132#.mxaccess_gateway.v1.TimestampArray" +
+      "H\000\0223\n\nraw_values\030\021 \001(\0132\035.mxaccess_gatewa" +
+      "y.v1.RawArrayH\000B\010\n\006values\"\033\n\tBoolArray\022\016" +
+      "\n\006values\030\001 \003(\010\"\034\n\nInt32Array\022\016\n\006values\030\001" +
+      " \003(\005\"\034\n\nInt64Array\022\016\n\006values\030\001 \003(\003\"\034\n\nFl" +
+      "oatArray\022\016\n\006values\030\001 \003(\002\"\035\n\013DoubleArray\022" +
+      "\016\n\006values\030\001 \003(\001\"\035\n\013StringArray\022\016\n\006values" +
+      "\030\001 \003(\t\"<\n\016TimestampArray\022*\n\006values\030\001 \003(\013" +
+      "2\032.google.protobuf.Timestamp\"\032\n\010RawArray" +
+      "\022\016\n\006values\030\001 \003(\014\"X\n\016ProtocolStatus\0225\n\004co" +
+      "de\030\001 \001(\0162\'.mxaccess_gateway.v1.ProtocolS" +
+      "tatusCode\022\017\n\007message\030\002 \001(\t*\237\013\n\rMxCommand" +
+      "Kind\022\037\n\033MX_COMMAND_KIND_UNSPECIFIED\020\000\022\034\n" +
+      "\030MX_COMMAND_KIND_REGISTER\020\001\022\036\n\032MX_COMMAN" +
+      "D_KIND_UNREGISTER\020\002\022\034\n\030MX_COMMAND_KIND_A" +
+      "DD_ITEM\020\003\022\035\n\031MX_COMMAND_KIND_ADD_ITEM2\020\004" +
+      "\022\037\n\033MX_COMMAND_KIND_REMOVE_ITEM\020\005\022\032\n\026MX_",
+      "COMMAND_KIND_ADVISE\020\006\022\035\n\031MX_COMMAND_KIND" +
+      "_UN_ADVISE\020\007\022&\n\"MX_COMMAND_KIND_ADVISE_S" +
+      "UPERVISORY\020\010\022%\n!MX_COMMAND_KIND_ADD_BUFF" +
+      "ERED_ITEM\020\t\0220\n,MX_COMMAND_KIND_SET_BUFFE" +
+      "RED_UPDATE_INTERVAL\020\n\022\033\n\027MX_COMMAND_KIND" +
+      "_SUSPEND\020\013\022\034\n\030MX_COMMAND_KIND_ACTIVATE\020\014" +
+      "\022\031\n\025MX_COMMAND_KIND_WRITE\020\r\022\032\n\026MX_COMMAN" +
+      "D_KIND_WRITE2\020\016\022!\n\035MX_COMMAND_KIND_WRITE" +
+      "_SECURED\020\017\022\"\n\036MX_COMMAND_KIND_WRITE_SECU" +
+      "RED2\020\020\022%\n!MX_COMMAND_KIND_AUTHENTICATE_U" +
+      "SER\020\021\022(\n$MX_COMMAND_KIND_ARCHESTRA_USER_" +
+      "TO_ID\020\022\022!\n\035MX_COMMAND_KIND_ADD_ITEM_BULK" +
+      "\020\023\022$\n MX_COMMAND_KIND_ADVISE_ITEM_BULK\020\024" +
+      "\022$\n MX_COMMAND_KIND_REMOVE_ITEM_BULK\020\025\022\'" +
+      "\n#MX_COMMAND_KIND_UN_ADVISE_ITEM_BULK\020\026\022" +
+      "\"\n\036MX_COMMAND_KIND_SUBSCRIBE_BULK\020\027\022$\n M" +
+      "X_COMMAND_KIND_UNSUBSCRIBE_BULK\020\030\022$\n MX_" +
+      "COMMAND_KIND_SUBSCRIBE_ALARMS\020\031\022&\n\"MX_CO" +
+      "MMAND_KIND_UNSUBSCRIBE_ALARMS\020\032\022%\n!MX_CO" +
+      "MMAND_KIND_ACKNOWLEDGE_ALARM\020\033\022\'\n#MX_COM" +
+      "MAND_KIND_QUERY_ACTIVE_ALARMS\020\034\022-\n)MX_CO" +
+      "MMAND_KIND_ACKNOWLEDGE_ALARM_BY_NAME\020\035\022\036" +
+      "\n\032MX_COMMAND_KIND_WRITE_BULK\020\036\022\037\n\033MX_COM" +
+      "MAND_KIND_WRITE2_BULK\020\037\022&\n\"MX_COMMAND_KI" +
+      "ND_WRITE_SECURED_BULK\020 \022\'\n#MX_COMMAND_KI" +
+      "ND_WRITE_SECURED2_BULK\020!\022\035\n\031MX_COMMAND_K" +
+      "IND_READ_BULK\020\"\022\030\n\024MX_COMMAND_KIND_PING\020" +
+      "d\022%\n!MX_COMMAND_KIND_GET_SESSION_STATE\020e" +
+      "\022#\n\037MX_COMMAND_KIND_GET_WORKER_INFO\020f\022 \n" +
+      "\034MX_COMMAND_KIND_DRAIN_EVENTS\020g\022#\n\037MX_CO" +
+      "MMAND_KIND_SHUTDOWN_WORKER\020h*\371\001\n\rMxEvent" +
+      "Family\022\037\n\033MX_EVENT_FAMILY_UNSPECIFIED\020\000\022" +
+      "\"\n\036MX_EVENT_FAMILY_ON_DATA_CHANGE\020\001\022%\n!M" +
+      "X_EVENT_FAMILY_ON_WRITE_COMPLETE\020\002\022&\n\"MX" +
+      "_EVENT_FAMILY_OPERATION_COMPLETE\020\003\022+\n\'MX" +
+      "_EVENT_FAMILY_ON_BUFFERED_DATA_CHANGE\020\004\022" +
+      "\'\n#MX_EVENT_FAMILY_ON_ALARM_TRANSITION\020\005" +
+      "*\312\001\n\023AlarmTransitionKind\022%\n!ALARM_TRANSI" +
+      "TION_KIND_UNSPECIFIED\020\000\022\037\n\033ALARM_TRANSIT" +
+      "ION_KIND_RAISE\020\001\022%\n!ALARM_TRANSITION_KIN" +
+      "D_ACKNOWLEDGE\020\002\022\037\n\033ALARM_TRANSITION_KIND" +
+      "_CLEAR\020\003\022#\n\037ALARM_TRANSITION_KIND_RETRIG" +
+      "GER\020\004*\252\001\n\023AlarmConditionState\022%\n!ALARM_C" +
+      "ONDITION_STATE_UNSPECIFIED\020\000\022 \n\034ALARM_CO" +
+      "NDITION_STATE_ACTIVE\020\001\022&\n\"ALARM_CONDITIO" +
+      "N_STATE_ACTIVE_ACKED\020\002\022\"\n\036ALARM_CONDITIO" +
+      "N_STATE_INACTIVE\020\003*\245\003\n\020MxStatusCategory\022" +
+      "\"\n\036MX_STATUS_CATEGORY_UNSPECIFIED\020\000\022\036\n\032M" +
+      "X_STATUS_CATEGORY_UNKNOWN\020\001\022\031\n\025MX_STATUS" +
+      "_CATEGORY_OK\020\002\022\036\n\032MX_STATUS_CATEGORY_PEN" +
+      "DING\020\003\022\036\n\032MX_STATUS_CATEGORY_WARNING\020\004\022*" +
+      "\n&MX_STATUS_CATEGORY_COMMUNICATION_ERROR" +
+      "\020\005\022*\n&MX_STATUS_CATEGORY_CONFIGURATION_E" +
+      "RROR\020\006\022(\n$MX_STATUS_CATEGORY_OPERATIONAL" +
+      "_ERROR\020\007\022%\n!MX_STATUS_CATEGORY_SECURITY_" +
+      "ERROR\020\010\022%\n!MX_STATUS_CATEGORY_SOFTWARE_E" +
+      "RROR\020\t\022\"\n\036MX_STATUS_CATEGORY_OTHER_ERROR" +
+      "\020\n*\312\002\n\016MxStatusSource\022 \n\034MX_STATUS_SOURC" +
+      "E_UNSPECIFIED\020\000\022\034\n\030MX_STATUS_SOURCE_UNKN" +
+      "OWN\020\001\022#\n\037MX_STATUS_SOURCE_REQUESTING_LMX" +
+      "\020\002\022#\n\037MX_STATUS_SOURCE_RESPONDING_LMX\020\003\022" +
+      "#\n\037MX_STATUS_SOURCE_REQUESTING_NMX\020\004\022#\n\037" +
+      "MX_STATUS_SOURCE_RESPONDING_NMX\020\005\0221\n-MX_" +
+      "STATUS_SOURCE_REQUESTING_AUTOMATION_OBJE" +
+      "CT\020\006\0221\n-MX_STATUS_SOURCE_RESPONDING_AUTO" +
+      "MATION_OBJECT\020\007*\335\004\n\nMxDataType\022\034\n\030MX_DAT" +
+      "A_TYPE_UNSPECIFIED\020\000\022\030\n\024MX_DATA_TYPE_UNK" +
+      "NOWN\020\001\022\030\n\024MX_DATA_TYPE_NO_DATA\020\002\022\030\n\024MX_D" +
+      "ATA_TYPE_BOOLEAN\020\003\022\030\n\024MX_DATA_TYPE_INTEG" +
+      "ER\020\004\022\026\n\022MX_DATA_TYPE_FLOAT\020\005\022\027\n\023MX_DATA_" +
+      "TYPE_DOUBLE\020\006\022\027\n\023MX_DATA_TYPE_STRING\020\007\022\025" +
+      "\n\021MX_DATA_TYPE_TIME\020\010\022\035\n\031MX_DATA_TYPE_EL" +
+      "APSED_TIME\020\t\022\037\n\033MX_DATA_TYPE_REFERENCE_T" +
+      "YPE\020\n\022\034\n\030MX_DATA_TYPE_STATUS_TYPE\020\013\022\025\n\021M" +
+      "X_DATA_TYPE_ENUM\020\014\022-\n)MX_DATA_TYPE_SECUR" +
+      "ITY_CLASSIFICATION_ENUM\020\r\022\"\n\036MX_DATA_TYP" +
+      "E_DATA_QUALITY_TYPE\020\016\022\037\n\033MX_DATA_TYPE_QU" +
+      "ALIFIED_ENUM\020\017\022!\n\035MX_DATA_TYPE_QUALIFIED" +
+      "_STRUCT\020\020\022)\n%MX_DATA_TYPE_INTERNATIONALI" +
+      "ZED_STRING\020\021\022\033\n\027MX_DATA_TYPE_BIG_STRING\020" +
+      "\022\022\024\n\020MX_DATA_TYPE_END\020\023*\243\003\n\022ProtocolStat" +
+      "usCode\022$\n PROTOCOL_STATUS_CODE_UNSPECIFI" +
+      "ED\020\000\022\033\n\027PROTOCOL_STATUS_CODE_OK\020\001\022(\n$PRO" +
+      "TOCOL_STATUS_CODE_INVALID_REQUEST\020\002\022*\n&P" +
+      "ROTOCOL_STATUS_CODE_SESSION_NOT_FOUND\020\003\022" +
+      "*\n&PROTOCOL_STATUS_CODE_SESSION_NOT_READ" +
+      "Y\020\004\022+\n\'PROTOCOL_STATUS_CODE_WORKER_UNAVA" +
+      "ILABLE\020\005\022 \n\034PROTOCOL_STATUS_CODE_TIMEOUT" +
+      "\020\006\022!\n\035PROTOCOL_STATUS_CODE_CANCELED\020\007\022+\n" +
+      "\'PROTOCOL_STATUS_CODE_PROTOCOL_VIOLATION" +
+      "\020\010\022)\n%PROTOCOL_STATUS_CODE_MXACCESS_FAIL" +
+      "URE\020\t*\277\002\n\014SessionState\022\035\n\031SESSION_STATE_" +
+      "UNSPECIFIED\020\000\022\032\n\026SESSION_STATE_CREATING\020" +
+      "\001\022!\n\035SESSION_STATE_STARTING_WORKER\020\002\022\"\n\036" +
+      "SESSION_STATE_WAITING_FOR_PIPE\020\003\022\035\n\031SESS" +
+      "ION_STATE_HANDSHAKING\020\004\022%\n!SESSION_STATE" +
+      "_INITIALIZING_WORKER\020\005\022\027\n\023SESSION_STATE_" +
+      "READY\020\006\022\031\n\025SESSION_STATE_CLOSING\020\007\022\030\n\024SE" +
+      "SSION_STATE_CLOSED\020\010\022\031\n\025SESSION_STATE_FA" +
+      "ULTED\020\t2\323\004\n\017MxAccessGateway\022]\n\013OpenSessi" +
+      "on\022\'.mxaccess_gateway.v1.OpenSessionRequ" +
+      "est\032%.mxaccess_gateway.v1.OpenSessionRep" +
+      "ly\022`\n\014CloseSession\022(.mxaccess_gateway.v1" +
+      ".CloseSessionRequest\032&.mxaccess_gateway." +
+      "v1.CloseSessionReply\022T\n\006Invoke\022%.mxacces" +
+      "s_gateway.v1.MxCommandRequest\032#.mxaccess" +
+      "_gateway.v1.MxCommandReply\022X\n\014StreamEven" +
+      "ts\022(.mxaccess_gateway.v1.StreamEventsReq" +
+      "uest\032\034.mxaccess_gateway.v1.MxEvent0\001\022l\n\020" +
+      "AcknowledgeAlarm\022,.mxaccess_gateway.v1.A" +
+      "cknowledgeAlarmRequest\032*.mxaccess_gatewa" +
+      "y.v1.AcknowledgeAlarmReply\022a\n\014StreamAlar" +
+      "ms\022(.mxaccess_gateway.v1.StreamAlarmsReq" +
+      "uest\032%.mxaccess_gateway.v1.AlarmFeedMess" +
+      "age0\001B\034\252\002\031MxGateway.Contracts.Protob\006pro" +
+      "to3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -94704,87 +95437,93 @@ public final class MxaccessGateway extends com.google.protobuf.GeneratedFile {
     internal_static_mxaccess_gateway_v1_AcknowledgeAlarmRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_AcknowledgeAlarmRequest_descriptor,
-        new java.lang.String[] { "SessionId", "ClientCorrelationId", "AlarmFullReference", "Comment", "OperatorUser", });
+        new java.lang.String[] { "ClientCorrelationId", "AlarmFullReference", "Comment", "OperatorUser", });
     internal_static_mxaccess_gateway_v1_AcknowledgeAlarmReply_descriptor =
       getDescriptor().getMessageType(78);
     internal_static_mxaccess_gateway_v1_AcknowledgeAlarmReply_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_AcknowledgeAlarmReply_descriptor,
-        new java.lang.String[] { "SessionId", "CorrelationId", "ProtocolStatus", "Hresult", "Status", "DiagnosticMessage", });
-    internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor =
+        new java.lang.String[] { "CorrelationId", "ProtocolStatus", "Hresult", "Status", "DiagnosticMessage", });
+    internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor =
       getDescriptor().getMessageType(79);
-    internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_fieldAccessorTable = new
+    internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
-        internal_static_mxaccess_gateway_v1_QueryActiveAlarmsRequest_descriptor,
-        new java.lang.String[] { "SessionId", "ClientCorrelationId", "AlarmFilterPrefix", });
-    internal_static_mxaccess_gateway_v1_MxStatusProxy_descriptor =
+        internal_static_mxaccess_gateway_v1_StreamAlarmsRequest_descriptor,
+        new java.lang.String[] { "ClientCorrelationId", "AlarmFilterPrefix", });
+    internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor =
       getDescriptor().getMessageType(80);
+    internal_static_mxaccess_gateway_v1_AlarmFeedMessage_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+        internal_static_mxaccess_gateway_v1_AlarmFeedMessage_descriptor,
+        new java.lang.String[] { "ActiveAlarm", "SnapshotComplete", "Transition", "Payload", });
+    internal_static_mxaccess_gateway_v1_MxStatusProxy_descriptor =
+      getDescriptor().getMessageType(81);
     internal_static_mxaccess_gateway_v1_MxStatusProxy_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_MxStatusProxy_descriptor,
         new java.lang.String[] { "Success", "Category", "DetectedBy", "Detail", "RawCategory", "RawDetectedBy", "DiagnosticText", });
     internal_static_mxaccess_gateway_v1_MxValue_descriptor =
-      getDescriptor().getMessageType(81);
+      getDescriptor().getMessageType(82);
     internal_static_mxaccess_gateway_v1_MxValue_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_MxValue_descriptor,
         new java.lang.String[] { "DataType", "VariantType", "IsNull", "RawDiagnostic", "RawDataType", "BoolValue", "Int32Value", "Int64Value", "FloatValue", "DoubleValue", "StringValue", "TimestampValue", "ArrayValue", "RawValue", "Kind", });
     internal_static_mxaccess_gateway_v1_MxArray_descriptor =
-      getDescriptor().getMessageType(82);
+      getDescriptor().getMessageType(83);
     internal_static_mxaccess_gateway_v1_MxArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_MxArray_descriptor,
         new java.lang.String[] { "ElementDataType", "VariantType", "Dimensions", "RawDiagnostic", "RawElementDataType", "BoolValues", "Int32Values", "Int64Values", "FloatValues", "DoubleValues", "StringValues", "TimestampValues", "RawValues", "Values", });
     internal_static_mxaccess_gateway_v1_BoolArray_descriptor =
-      getDescriptor().getMessageType(83);
+      getDescriptor().getMessageType(84);
     internal_static_mxaccess_gateway_v1_BoolArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_BoolArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_Int32Array_descriptor =
-      getDescriptor().getMessageType(84);
+      getDescriptor().getMessageType(85);
     internal_static_mxaccess_gateway_v1_Int32Array_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_Int32Array_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_Int64Array_descriptor =
-      getDescriptor().getMessageType(85);
+      getDescriptor().getMessageType(86);
     internal_static_mxaccess_gateway_v1_Int64Array_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_Int64Array_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_FloatArray_descriptor =
-      getDescriptor().getMessageType(86);
+      getDescriptor().getMessageType(87);
     internal_static_mxaccess_gateway_v1_FloatArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_FloatArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_DoubleArray_descriptor =
-      getDescriptor().getMessageType(87);
+      getDescriptor().getMessageType(88);
     internal_static_mxaccess_gateway_v1_DoubleArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_DoubleArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_StringArray_descriptor =
-      getDescriptor().getMessageType(88);
+      getDescriptor().getMessageType(89);
     internal_static_mxaccess_gateway_v1_StringArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_StringArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_TimestampArray_descriptor =
-      getDescriptor().getMessageType(89);
+      getDescriptor().getMessageType(90);
     internal_static_mxaccess_gateway_v1_TimestampArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_TimestampArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_RawArray_descriptor =
-      getDescriptor().getMessageType(90);
+      getDescriptor().getMessageType(91);
     internal_static_mxaccess_gateway_v1_RawArray_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_RawArray_descriptor,
         new java.lang.String[] { "Values", });
     internal_static_mxaccess_gateway_v1_ProtocolStatus_descriptor =
-      getDescriptor().getMessageType(91);
+      getDescriptor().getMessageType(92);
     internal_static_mxaccess_gateway_v1_ProtocolStatus_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessage.FieldAccessorTable(
         internal_static_mxaccess_gateway_v1_ProtocolStatus_descriptor,