[ 1673.917329] br0: port 1(dummy0) entered blocking state
[ 1673.917413] br0: port 1(dummy0) entered disabled state
[ 1673.917488] dummy0: entered allmulticast mode
[ 1673.917572] dummy0: entered promiscuous mode
[ 1673.920051] br0: port 1(dummy0) entered blocking state
[ 1673.920088] br0: port 1(dummy0) entered forwarding state
[ 1674.111012] dummy0: left allmulticast mode
[ 1674.111045] dummy0: left promiscuous mode
[ 1674.111075] br0: port 1(dummy0) entered disabled state