[ 2347.462174][T13248] br0: port 1(dummy0) entered blocking state
[ 2347.462543][T13248] br0: port 1(dummy0) entered disabled state
[ 2347.462882][T13248] dummy0: entered allmulticast mode
[ 2347.463994][T13248] dummy0: entered promiscuous mode
[ 2347.491852][T13249] br0: port 1(dummy0) entered blocking state
[ 2347.492348][T13249] br0: port 1(dummy0) entered forwarding state
[ 2350.078647][   T12] dummy0: left allmulticast mode
[ 2350.079749][   T12] dummy0: left promiscuous mode
[ 2350.080100][   T12] br0: port 1(dummy0) entered disabled state