diff --git a/protos/voltha_protos/voltha.proto b/protos/voltha_protos/voltha.proto
index e6d9fdd..53e97d1 100644
--- a/protos/voltha_protos/voltha.proto
+++ b/protos/voltha_protos/voltha.proto
@@ -23,6 +23,7 @@
 
 import "voltha_protos/omci_mib_db.proto";
 import "voltha_protos/omci_alarm_db.proto";
+import "voltha_protos/ext_config.proto";
 
 option java_package = "org.opencord.voltha";
 option java_outer_classname = "VolthaProtos";
@@ -97,6 +98,13 @@
     TestResponseResult result = 1;
 }
 
+message ValueSet {
+    string id = 1;
+    oneof value{
+        config.AlarmConfig alarm_config = 2;
+    }
+}
+
 // Voltha represents the Voltha cluster data.  Each Core instance will hold a subset of
 // the entire cluster. However, some items (e.g. adapters) will be held by all cores
 // for better performance
@@ -602,6 +610,11 @@
             get: "/api/v1/GetExtValue"
         };
     }
+    rpc SetExtValue(ValueSet) returns(google.protobuf.Empty) {
+        option (google.api.http) = {
+            get: "/api/v1/SetExtValue"
+        };
+    }
 
     // omci start and stop cli implementation
     rpc StartOmciTestAction(OmciTestRequest) returns(TestResponse) {