Previously, it doesn't allow creating such a network: e.g. $ docker network inspect -f '{{.Id}}' ingress 84xh9knigj6zyt00u31e26nj3 $ docker network create 84 Error response from daemon: network with name 84 already exists Fix #27866 Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp> Upstream-commit: edfbc3b8767ab2e89e73ba3142d2ddad295001e9 Component: engine