diff --git a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
index a13b29c..23ca9a6 100644
--- a/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
+++ b/incubator/rpc-grpc/src/main/java/org/onosproject/incubator/rpc/grpc/GrpcRemoteServiceServer.java
@@ -51,6 +51,7 @@
 import org.onosproject.grpc.LinkProviderServiceRpcGrpc;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.MastershipRole;
+import org.onosproject.net.PortNumber;
 import org.onosproject.net.device.DeviceProvider;
 import org.onosproject.net.device.DeviceProviderRegistry;
 import org.onosproject.net.device.DeviceProviderService;
@@ -435,5 +436,12 @@
             return checkNotNull(providerId, "not initialized yet");
         }
 
+        @Override
+        public void changePortState(DeviceId deviceId, PortNumber portNumber,
+                                    boolean enable) {
+            // TODO if required
+
+        }
+
     }
 }