[ 2327.048539][T22091] br0: port 1(dummy0) entered blocking state
[ 2327.048828][T22091] br0: port 1(dummy0) entered disabled state
[ 2327.049113][T22091] dummy0: entered allmulticast mode
[ 2327.050442][T22091] dummy0: entered promiscuous mode
[ 2327.081732][T22092] br0: port 1(dummy0) entered blocking state
[ 2327.082296][T22092] br0: port 1(dummy0) entered forwarding state
[ 2329.418894][   T68] dummy0: left allmulticast mode
[ 2329.419927][   T68] dummy0: left promiscuous mode
[ 2329.420329][   T68] br0: port 1(dummy0) entered disabled state