diff --git a/rw_core/core/device/manager.go b/rw_core/core/device/manager.go
index 345255f..fc6a3dd 100755
--- a/rw_core/core/device/manager.go
+++ b/rw_core/core/device/manager.go
@@ -1563,3 +1563,22 @@
 	return nil, status.Errorf(codes.NotFound, "%s", value.Id)
 
 }
+
+// SetExtValue  set some given configs or value
+func (dMgr *Manager) SetExtValue(ctx context.Context, value *voltha.ValueSet) (*empty.Empty, error) {
+	logger.Debugw(ctx, "setExtValue", log.Fields{"onu-id": value.Id})
+	device, err := dMgr.getDeviceReadOnly(ctx, value.Id)
+	if err != nil {
+		return nil, status.Errorf(codes.Aborted, "%s", err.Error())
+	}
+	if agent := dMgr.getDeviceAgent(ctx, device.Id); agent != nil {
+		resp, err := agent.setExtValue(ctx, device, value)
+		if err != nil {
+			return nil, err
+		}
+		logger.Debugw(ctx, "setExtValue-result", log.Fields{"result": resp})
+		return resp, nil
+	}
+	return nil, status.Errorf(codes.NotFound, "%s", value.Id)
+
+}