[ 1998.915571][T11089] br0: port 1(dummy0) entered blocking state
[ 1998.915768][T11089] br0: port 1(dummy0) entered disabled state
[ 1998.916291][T11089] dummy0: entered allmulticast mode
[ 1998.917316][T11089] dummy0: entered promiscuous mode
[ 1998.937718][T11090] br0: port 1(dummy0) entered blocking state
[ 1998.938270][T11090] br0: port 1(dummy0) entered forwarding state
[ 2000.862960][   T12] dummy0: left allmulticast mode
[ 2000.863266][   T12] dummy0: left promiscuous mode
[ 2000.863481][   T12] br0: port 1(dummy0) entered disabled state