[ 2160.226830][T12144] br0: port 1(dummy0) entered blocking state
[ 2160.227080][T12144] br0: port 1(dummy0) entered disabled state
[ 2160.227295][T12144] dummy0: entered allmulticast mode
[ 2160.228362][T12144] dummy0: entered promiscuous mode
[ 2160.253678][T12145] br0: port 1(dummy0) entered blocking state
[ 2160.253934][T12145] br0: port 1(dummy0) entered forwarding state
[ 2162.432217][   T71] dummy0: left allmulticast mode
[ 2162.433134][   T71] dummy0: left promiscuous mode
[ 2162.433417][   T71] br0: port 1(dummy0) entered disabled state