[ 2283.826519][T11700] br0: port 1(dummy0) entered blocking state
[ 2283.826823][T11700] br0: port 1(dummy0) entered disabled state
[ 2283.827093][T11700] dummy0: entered allmulticast mode
[ 2283.828076][T11700] dummy0: entered promiscuous mode
[ 2283.863860][T11701] br0: port 1(dummy0) entered blocking state
[ 2283.864166][T11701] br0: port 1(dummy0) entered forwarding state
[ 2286.279924][   T12] dummy0: left allmulticast mode
[ 2286.281073][   T12] dummy0: left promiscuous mode
[ 2286.281393][   T12] br0: port 1(dummy0) entered disabled state