diff --git a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/ponsim.pb.go b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/ponsim.pb.go
index 4b49c5b..e2abe7f 100644
--- a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/ponsim.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/ponsim.pb.go
@@ -10,6 +10,8 @@
 	empty "github.com/golang/protobuf/ptypes/empty"
 	openflow_13 "github.com/opencord/voltha-protos/v4/go/openflow_13"
 	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
 	math "math"
 )
 
@@ -557,6 +559,26 @@
 	GetStats(context.Context, *empty.Empty) (*PonSimMetrics, error)
 }
 
+// UnimplementedPonSimServer can be embedded to have forward compatible implementations.
+type UnimplementedPonSimServer struct {
+}
+
+func (*UnimplementedPonSimServer) SendFrame(ctx context.Context, req *PonSimFrame) (*empty.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SendFrame not implemented")
+}
+func (*UnimplementedPonSimServer) ReceiveFrames(req *empty.Empty, srv PonSim_ReceiveFramesServer) error {
+	return status.Errorf(codes.Unimplemented, "method ReceiveFrames not implemented")
+}
+func (*UnimplementedPonSimServer) GetDeviceInfo(ctx context.Context, req *empty.Empty) (*PonSimDeviceInfo, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetDeviceInfo not implemented")
+}
+func (*UnimplementedPonSimServer) UpdateFlowTable(ctx context.Context, req *FlowTable) (*empty.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method UpdateFlowTable not implemented")
+}
+func (*UnimplementedPonSimServer) GetStats(ctx context.Context, req *empty.Empty) (*PonSimMetrics, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetStats not implemented")
+}
+
 func RegisterPonSimServer(s *grpc.Server, srv PonSimServer) {
 	s.RegisterService(&_PonSim_serviceDesc, srv)
 }