diff --git a/apm-network/src/main/proto/AggregatedMetricsService.proto b/apm-network/src/main/proto/AggregatedMetricsService.proto
index ed4b9b264..36c522836 100644
--- a/apm-network/src/main/proto/AggregatedMetricsService.proto
+++ b/apm-network/src/main/proto/AggregatedMetricsService.proto
@@ -12,6 +12,8 @@ service AggregatedMetricsService {
 
 message AggregatedMetrics {
     repeated Metric metrics = 1;
+    int32 applicationId = 2;
+    int32 applicationInstanceId = 3;
 }
 
 // In aggregated metric, every operation metric is aggregated in 1 seconds.
diff --git a/apm-network/src/main/proto/RegisterService.proto b/apm-network/src/main/proto/RegisterService.proto
index 773f224b8..dff94a55d 100644
--- a/apm-network/src/main/proto/RegisterService.proto
+++ b/apm-network/src/main/proto/RegisterService.proto
@@ -14,7 +14,8 @@ message ApplicationMetaInfo {
 }
 
 message ApplicationRegiseredInfo {
-    int32 applicationId = 2;
+    int32 applicationId = 1;
+    int32 applicationInstanceId = 2;
 }
 
 //register service for ServiceName, Network address
diff --git a/apm-network/src/main/proto/TraceSegmentService.proto b/apm-network/src/main/proto/TraceSegmentService.proto
index 4382a062b..000ca8a7d 100644
--- a/apm-network/src/main/proto/TraceSegmentService.proto
+++ b/apm-network/src/main/proto/TraceSegmentService.proto
@@ -15,7 +15,8 @@ message TraceSegmentObject {
     repeated TraceSegmentReference refs = 2;
     repeated SpanObject spans = 3;
     int32 applicationId = 4;
-    repeated string globalTraceIds = 5;
+    int32 applicationInstanceId = 5;
+    repeated string globalTraceIds = 6;
 }
 
 message TraceSegmentReference {