For any operation that involves netwoks (other than network create), swarmkit expects the target as network-id. Service upate was using network-name as the target and that caused the issue. Signed-off-by: Madhu Venugopal <madhu@docker.com> Upstream-commit: b32cfb32a3f654f27bc9d4356b36c6a7e5e53b21 Component: engine