[ 1845.103538] br0: port 1(dummy0) entered blocking state
[ 1845.103583] br0: port 1(dummy0) entered disabled state
[ 1845.103621] dummy0: entered allmulticast mode
[ 1845.103674] dummy0: entered promiscuous mode
[ 1845.106963] br0: port 1(dummy0) entered blocking state
[ 1845.106995] br0: port 1(dummy0) entered forwarding state
[ 1845.318267] dummy0: left allmulticast mode
[ 1845.318306] dummy0: left promiscuous mode
[ 1845.318403] br0: port 1(dummy0) entered disabled state