[ 2284.553804][T10389] br0: port 1(dummy0) entered blocking state
[ 2284.554111][T10389] br0: port 1(dummy0) entered disabled state
[ 2284.554404][T10389] dummy0: entered allmulticast mode
[ 2284.555383][T10389] dummy0: entered promiscuous mode
[ 2284.586077][T10390] br0: port 1(dummy0) entered blocking state
[ 2284.586401][T10390] br0: port 1(dummy0) entered forwarding state
[ 2287.053425][   T12] dummy0: left allmulticast mode
[ 2287.053707][   T12] dummy0: left promiscuous mode
[ 2287.054028][   T12] br0: port 1(dummy0) entered disabled state