[ 1629.111531] br0: port 1(dummy0) entered blocking state
[ 1629.111579] br0: port 1(dummy0) entered disabled state
[ 1629.111616] dummy0: entered allmulticast mode
[ 1629.111678] dummy0: entered promiscuous mode
[ 1629.114448] br0: port 1(dummy0) entered blocking state
[ 1629.114479] br0: port 1(dummy0) entered forwarding state
[ 1629.298315] dummy0: left allmulticast mode
[ 1629.298381] dummy0: left promiscuous mode
[ 1629.298439] br0: port 1(dummy0) entered disabled state