[ 2109.397541][T13856] br0: port 1(dummy0) entered blocking state
[ 2109.398100][T13856] br0: port 1(dummy0) entered disabled state
[ 2109.398307][T13856] dummy0: entered allmulticast mode
[ 2109.399394][T13856] dummy0: entered promiscuous mode
[ 2109.430566][T13857] br0: port 1(dummy0) entered blocking state
[ 2109.430943][T13857] br0: port 1(dummy0) entered forwarding state
[ 2111.406140][   T12] dummy0: left allmulticast mode
[ 2111.407054][   T12] dummy0: left promiscuous mode
[ 2111.407277][   T12] br0: port 1(dummy0) entered disabled state