[ 1679.638082] br0: port 1(dummy0) entered blocking state
[ 1679.638142] br0: port 1(dummy0) entered disabled state
[ 1679.638183] dummy0: entered allmulticast mode
[ 1679.638240] dummy0: entered promiscuous mode
[ 1679.640934] br0: port 1(dummy0) entered blocking state
[ 1679.641015] br0: port 1(dummy0) entered forwarding state
[ 1679.831040] dummy0: left allmulticast mode
[ 1679.831086] dummy0: left promiscuous mode
[ 1679.831116] br0: port 1(dummy0) entered disabled state