[ 1628.213061] br0: port 1(dummy0) entered blocking state
[ 1628.213090] br0: port 1(dummy0) entered disabled state
[ 1628.213110] dummy0: entered allmulticast mode
[ 1628.213144] dummy0: entered promiscuous mode
[ 1628.215627] br0: port 1(dummy0) entered blocking state
[ 1628.215647] br0: port 1(dummy0) entered forwarding state
[ 1628.393011] dummy0: left allmulticast mode
[ 1628.393040] dummy0: left promiscuous mode
[ 1628.393061] br0: port 1(dummy0) entered disabled state