[ 1624.315462] br0: port 1(dummy0) entered blocking state
[ 1624.315546] br0: port 1(dummy0) entered disabled state
[ 1624.315618] dummy0: entered allmulticast mode
[ 1624.315707] dummy0: entered promiscuous mode
[ 1624.318378] br0: port 1(dummy0) entered blocking state
[ 1624.318422] br0: port 1(dummy0) entered forwarding state
[ 1624.508729] dummy0: left allmulticast mode
[ 1624.508774] dummy0: left promiscuous mode
[ 1624.508831] br0: port 1(dummy0) entered disabled state