[ 1705.625216] br0: port 1(dummy0) entered blocking state
[ 1705.625260] br0: port 1(dummy0) entered disabled state
[ 1705.625293] dummy0: entered allmulticast mode
[ 1705.625344] dummy0: entered promiscuous mode
[ 1705.627807] br0: port 1(dummy0) entered blocking state
[ 1705.627868] br0: port 1(dummy0) entered forwarding state
[ 1705.802715] dummy0: left allmulticast mode
[ 1705.802750] dummy0: left promiscuous mode
[ 1705.802779] br0: port 1(dummy0) entered disabled state