[ 1624.697123] br0: port 1(dummy0) entered blocking state
[ 1624.697176] br0: port 1(dummy0) entered disabled state
[ 1624.697210] dummy0: entered allmulticast mode
[ 1624.697259] dummy0: entered promiscuous mode
[ 1624.699716] br0: port 1(dummy0) entered blocking state
[ 1624.699781] br0: port 1(dummy0) entered forwarding state
[ 1624.867288] dummy0: left allmulticast mode
[ 1624.867355] dummy0: left promiscuous mode
[ 1624.867416] br0: port 1(dummy0) entered disabled state