[ 1736.485342] br0: port 1(dummy0) entered blocking state
[ 1736.485411] br0: port 1(dummy0) entered disabled state
[ 1736.485473] dummy0: entered allmulticast mode
[ 1736.485554] dummy0: entered promiscuous mode
[ 1736.488088] br0: port 1(dummy0) entered blocking state
[ 1736.488122] br0: port 1(dummy0) entered forwarding state
[ 1736.681880] dummy0: left allmulticast mode
[ 1736.681917] dummy0: left promiscuous mode
[ 1736.682000] br0: port 1(dummy0) entered disabled state