[ 2226.835794][T21318] br0: port 1(dummy0) entered blocking state
[ 2226.835987][T21318] br0: port 1(dummy0) entered disabled state
[ 2226.836145][T21318] dummy0: entered allmulticast mode
[ 2226.837602][T21318] dummy0: entered promiscuous mode
[ 2226.862389][T21319] br0: port 1(dummy0) entered blocking state
[ 2226.862801][T21319] br0: port 1(dummy0) entered forwarding state
[ 2228.794794][   T69] dummy0: left allmulticast mode
[ 2228.795788][   T69] dummy0: left promiscuous mode
[ 2228.796028][   T69] br0: port 1(dummy0) entered disabled state