[ 2016.082890][T22826] br0: port 1(dummy0) entered blocking state
[ 2016.083110][T22826] br0: port 1(dummy0) entered disabled state
[ 2016.083319][T22826] dummy0: entered allmulticast mode
[ 2016.084672][T22826] dummy0: entered promiscuous mode
[ 2016.115134][T22827] br0: port 1(dummy0) entered blocking state
[ 2016.115499][T22827] br0: port 1(dummy0) entered forwarding state
[ 2018.104065][   T12] dummy0: left allmulticast mode
[ 2018.104726][   T12] dummy0: left promiscuous mode
[ 2018.105143][   T12] br0: port 1(dummy0) entered disabled state