[ 2140.576872][ T9828] br0: port 1(dummy0) entered blocking state
[ 2140.577062][ T9828] br0: port 1(dummy0) entered disabled state
[ 2140.577232][ T9828] dummy0: entered allmulticast mode
[ 2140.584620][ T9828] dummy0: entered promiscuous mode
[ 2140.609833][ T9829] br0: port 1(dummy0) entered blocking state
[ 2140.610044][ T9829] br0: port 1(dummy0) entered forwarding state
[ 2143.435052][   T71] dummy0: left allmulticast mode
[ 2143.435243][   T71] dummy0: left promiscuous mode
[ 2143.435471][   T71] br0: port 1(dummy0) entered disabled state