[ 1918.806564][T30604] br0: port 1(dummy0) entered blocking state
[ 1918.806804][T30604] br0: port 1(dummy0) entered disabled state
[ 1918.807038][T30604] dummy0: entered allmulticast mode
[ 1918.808126][T30604] dummy0: entered promiscuous mode
[ 1918.828428][T30605] br0: port 1(dummy0) entered blocking state
[ 1918.828685][T30605] br0: port 1(dummy0) entered forwarding state
[ 1920.668405][   T12] dummy0: left allmulticast mode
[ 1920.668729][   T12] dummy0: left promiscuous mode
[ 1920.669000][   T12] br0: port 1(dummy0) entered disabled state