[ 2228.537877][T31818] br0: port 1(dummy0) entered blocking state
[ 2228.538071][T31818] br0: port 1(dummy0) entered disabled state
[ 2228.538230][T31818] dummy0: entered allmulticast mode
[ 2228.539090][T31818] dummy0: entered promiscuous mode
[ 2228.565232][T31819] br0: port 1(dummy0) entered blocking state
[ 2228.565406][T31819] br0: port 1(dummy0) entered forwarding state
[ 2230.649492][   T12] dummy0: left allmulticast mode
[ 2230.650730][   T12] dummy0: left promiscuous mode
[ 2230.651123][   T12] br0: port 1(dummy0) entered disabled state