[ 1820.819076] br0: port 1(dummy0) entered blocking state
[ 1820.819118] br0: port 1(dummy0) entered disabled state
[ 1820.819154] dummy0: entered allmulticast mode
[ 1820.819214] dummy0: entered promiscuous mode
[ 1820.822715] br0: port 1(dummy0) entered blocking state
[ 1820.822784] br0: port 1(dummy0) entered forwarding state
[ 1821.056991] dummy0: left allmulticast mode
[ 1821.057025] dummy0: left promiscuous mode
[ 1821.057064] br0: port 1(dummy0) entered disabled state