[ 1735.820609] br0: port 1(dummy0) entered blocking state
[ 1735.820653] br0: port 1(dummy0) entered disabled state
[ 1735.820695] dummy0: entered allmulticast mode
[ 1735.820751] dummy0: entered promiscuous mode
[ 1735.824469] br0: port 1(dummy0) entered blocking state
[ 1735.824536] br0: port 1(dummy0) entered forwarding state
[ 1736.104006] dummy0: left allmulticast mode
[ 1736.104048] dummy0: left promiscuous mode
[ 1736.104077] br0: port 1(dummy0) entered disabled state