[ 2271.816798][T13343] br0: port 1(dummy0) entered blocking state
[ 2271.816993][T13343] br0: port 1(dummy0) entered disabled state
[ 2271.817158][T13343] dummy0: entered allmulticast mode
[ 2271.818023][T13343] dummy0: entered promiscuous mode
[ 2271.848533][T13344] br0: port 1(dummy0) entered blocking state
[ 2271.849022][T13344] br0: port 1(dummy0) entered forwarding state
[ 2273.771804][   T12] dummy0: left allmulticast mode
[ 2273.772937][   T12] dummy0: left promiscuous mode
[ 2273.773223][   T12] br0: port 1(dummy0) entered disabled state