[ 2343.291619][T19250] br0: port 1(dummy0) entered blocking state
[ 2343.291866][T19250] br0: port 1(dummy0) entered disabled state
[ 2343.292081][T19250] dummy0: entered allmulticast mode
[ 2343.293191][T19250] dummy0: entered promiscuous mode
[ 2343.323999][T19251] br0: port 1(dummy0) entered blocking state
[ 2343.324282][T19251] br0: port 1(dummy0) entered forwarding state
[ 2345.632751][   T69] dummy0: left allmulticast mode
[ 2345.633528][   T69] dummy0: left promiscuous mode
[ 2345.633838][   T69] br0: port 1(dummy0) entered disabled state