[ 1970.430731][T12216] br0: port 1(dummy0) entered blocking state
[ 1970.430929][T12216] br0: port 1(dummy0) entered disabled state
[ 1970.431105][T12216] dummy0: entered allmulticast mode
[ 1970.431970][T12216] dummy0: entered promiscuous mode
[ 1970.463876][T12217] br0: port 1(dummy0) entered blocking state
[ 1970.464212][T12217] br0: port 1(dummy0) entered forwarding state
[ 1972.404587][   T69] dummy0: left allmulticast mode
[ 1972.407991][   T69] dummy0: left promiscuous mode
[ 1972.408272][   T69] br0: port 1(dummy0) entered disabled state