[ 2305.485482][T15101] br0: port 1(dummy0) entered blocking state
[ 2305.485856][T15101] br0: port 1(dummy0) entered disabled state
[ 2305.486201][T15101] dummy0: entered allmulticast mode
[ 2305.487395][T15101] dummy0: entered promiscuous mode
[ 2305.525591][T15102] br0: port 1(dummy0) entered blocking state
[ 2305.526185][T15102] br0: port 1(dummy0) entered forwarding state
[ 2308.047707][   T12] dummy0: left allmulticast mode
[ 2308.048969][   T12] dummy0: left promiscuous mode
[ 2308.049378][   T12] br0: port 1(dummy0) entered disabled state