[ 2194.655764][T21204] br0: port 1(dummy0) entered blocking state
[ 2194.656011][T21204] br0: port 1(dummy0) entered disabled state
[ 2194.656256][T21204] dummy0: entered allmulticast mode
[ 2194.657208][T21204] dummy0: entered promiscuous mode
[ 2194.685924][T21205] br0: port 1(dummy0) entered blocking state
[ 2194.686114][T21205] br0: port 1(dummy0) entered forwarding state
[ 2196.623614][   T12] dummy0: left allmulticast mode
[ 2196.623826][   T12] dummy0: left promiscuous mode
[ 2196.624481][   T12] br0: port 1(dummy0) entered disabled state