[ 1734.716270] br0: port 1(dummy0) entered blocking state
[ 1734.716313] br0: port 1(dummy0) entered disabled state
[ 1734.716347] dummy0: entered allmulticast mode
[ 1734.716393] dummy0: entered promiscuous mode
[ 1734.719145] br0: port 1(dummy0) entered blocking state
[ 1734.719205] br0: port 1(dummy0) entered forwarding state
[ 1734.911419] dummy0: left allmulticast mode
[ 1734.911448] dummy0: left promiscuous mode
[ 1734.911477] br0: port 1(dummy0) entered disabled state