[ 1625.441653] br0: port 1(dummy0) entered blocking state
[ 1625.441693] br0: port 1(dummy0) entered disabled state
[ 1625.441731] dummy0: entered allmulticast mode
[ 1625.441786] dummy0: entered promiscuous mode
[ 1625.444691] br0: port 1(dummy0) entered blocking state
[ 1625.444757] br0: port 1(dummy0) entered forwarding state
[ 1625.631393] dummy0: left allmulticast mode
[ 1625.631422] dummy0: left promiscuous mode
[ 1625.631449] br0: port 1(dummy0) entered disabled state