[ 1677.209084] br0: port 1(dummy0) entered blocking state
[ 1677.209126] br0: port 1(dummy0) entered disabled state
[ 1677.209160] dummy0: entered allmulticast mode
[ 1677.209215] dummy0: entered promiscuous mode
[ 1677.212056] br0: port 1(dummy0) entered blocking state
[ 1677.212119] br0: port 1(dummy0) entered forwarding state
[ 1677.406595] dummy0: left allmulticast mode
[ 1677.406624] dummy0: left promiscuous mode
[ 1677.406652] br0: port 1(dummy0) entered disabled state