[ 2274.005148][T31083] br0: port 1(dummy0) entered blocking state
[ 2274.005335][T31083] br0: port 1(dummy0) entered disabled state
[ 2274.005504][T31083] dummy0: entered allmulticast mode
[ 2274.006354][T31083] dummy0: entered promiscuous mode
[ 2274.040761][T31084] br0: port 1(dummy0) entered blocking state
[ 2274.040973][T31084] br0: port 1(dummy0) entered forwarding state
[ 2276.048919][   T12] dummy0: left allmulticast mode
[ 2276.049815][   T12] dummy0: left promiscuous mode
[ 2276.050053][   T12] br0: port 1(dummy0) entered disabled state