[ 2121.003306][T17072] br0: port 1(dummy0) entered blocking state
[ 2121.003499][T17072] br0: port 1(dummy0) entered disabled state
[ 2121.003659][T17072] dummy0: entered allmulticast mode
[ 2121.005153][T17072] dummy0: entered promiscuous mode
[ 2121.034575][T17073] br0: port 1(dummy0) entered blocking state
[ 2121.035172][T17073] br0: port 1(dummy0) entered forwarding state
[ 2122.958402][   T12] dummy0: left allmulticast mode
[ 2122.959156][   T12] dummy0: left promiscuous mode
[ 2122.959396][   T12] br0: port 1(dummy0) entered disabled state