[ 2107.269813][T18087] br0: port 1(dummy0) entered blocking state
[ 2107.270008][T18087] br0: port 1(dummy0) entered disabled state
[ 2107.270170][T18087] dummy0: entered allmulticast mode
[ 2107.271039][T18087] dummy0: entered promiscuous mode
[ 2107.302334][T18088] br0: port 1(dummy0) entered blocking state
[ 2107.302897][T18088] br0: port 1(dummy0) entered forwarding state
[ 2109.308614][   T12] dummy0: left allmulticast mode
[ 2109.309746][   T12] dummy0: left promiscuous mode
[ 2109.310035][   T12] br0: port 1(dummy0) entered disabled state