[ 1929.198267][T19266] br0: port 1(dummy0) entered blocking state
[ 1929.198895][T19266] br0: port 1(dummy0) entered disabled state
[ 1929.199059][T19266] dummy0: entered allmulticast mode
[ 1929.200027][T19266] dummy0: entered promiscuous mode
[ 1929.223335][T19267] br0: port 1(dummy0) entered blocking state
[ 1929.223947][T19267] br0: port 1(dummy0) entered forwarding state
[ 1931.215731][   T12] dummy0: left allmulticast mode
[ 1931.216559][   T12] dummy0: left promiscuous mode
[ 1931.216791][   T12] br0: port 1(dummy0) entered disabled state