[ 1846.124001] br0: port 1(dummy0) entered blocking state
[ 1846.124053] br0: port 1(dummy0) entered disabled state
[ 1846.124088] dummy0: entered allmulticast mode
[ 1846.124146] dummy0: entered promiscuous mode
[ 1846.127599] br0: port 1(dummy0) entered blocking state
[ 1846.127634] br0: port 1(dummy0) entered forwarding state
[ 1846.345854] dummy0: left allmulticast mode
[ 1846.345930] dummy0: left promiscuous mode
[ 1846.345997] br0: port 1(dummy0) entered disabled state