[ 1775.362768] br0: port 1(dummy0) entered blocking state
[ 1775.362849] br0: port 1(dummy0) entered disabled state
[ 1775.362918] dummy0: entered allmulticast mode
[ 1775.363011] dummy0: entered promiscuous mode
[ 1775.366661] br0: port 1(dummy0) entered blocking state
[ 1775.366694] br0: port 1(dummy0) entered forwarding state
[ 1775.635916] dummy0: left allmulticast mode
[ 1775.635948] dummy0: left promiscuous mode
[ 1775.635984] br0: port 1(dummy0) entered disabled state