[ 2365.587345][T20002] br0: port 1(dummy0) entered blocking state
[ 2365.587650][T20002] br0: port 1(dummy0) entered disabled state
[ 2365.587924][T20002] dummy0: entered allmulticast mode
[ 2365.589329][T20002] dummy0: entered promiscuous mode
[ 2365.615508][T20003] br0: port 1(dummy0) entered blocking state
[ 2365.615951][T20003] br0: port 1(dummy0) entered forwarding state
[ 2367.995003][   T12] dummy0: left allmulticast mode
[ 2367.996094][   T12] dummy0: left promiscuous mode
[ 2367.996561][   T12] br0: port 1(dummy0) entered disabled state