[ 2239.861301][  T674] br0: port 1(dummy0) entered blocking state
[ 2239.861481][  T674] br0: port 1(dummy0) entered disabled state
[ 2239.861648][  T674] dummy0: entered allmulticast mode
[ 2239.862493][  T674] dummy0: entered promiscuous mode
[ 2239.899230][  T675] br0: port 1(dummy0) entered blocking state
[ 2239.899405][  T675] br0: port 1(dummy0) entered forwarding state
[ 2241.910479][   T69] dummy0: left allmulticast mode
[ 2241.911126][   T69] dummy0: left promiscuous mode
[ 2241.911702][   T69] br0: port 1(dummy0) entered disabled state