[ 1628.982399] br0: port 1(dummy0) entered blocking state
[ 1628.982469] br0: port 1(dummy0) entered disabled state
[ 1628.982540] dummy0: entered allmulticast mode
[ 1628.982623] dummy0: entered promiscuous mode
[ 1628.985485] br0: port 1(dummy0) entered blocking state
[ 1628.985516] br0: port 1(dummy0) entered forwarding state
[ 1629.183646] dummy0: left allmulticast mode
[ 1629.183675] dummy0: left promiscuous mode
[ 1629.183702] br0: port 1(dummy0) entered disabled state