[ 1685.160306] br0: port 1(dummy0) entered blocking state
[ 1685.160393] br0: port 1(dummy0) entered disabled state
[ 1685.160471] dummy0: entered allmulticast mode
[ 1685.160564] dummy0: entered promiscuous mode
[ 1685.163521] br0: port 1(dummy0) entered blocking state
[ 1685.163586] br0: port 1(dummy0) entered forwarding state
[ 1685.365774] dummy0: left allmulticast mode
[ 1685.365822] dummy0: left promiscuous mode
[ 1685.365846] br0: port 1(dummy0) entered disabled state