[ 2338.571828][T32600] br0: port 1(dummy0) entered blocking state
[ 2338.572140][T32600] br0: port 1(dummy0) entered disabled state
[ 2338.572410][T32600] dummy0: entered allmulticast mode
[ 2338.573376][T32600] dummy0: entered promiscuous mode
[ 2338.600387][T32601] br0: port 1(dummy0) entered blocking state
[ 2338.600726][T32601] br0: port 1(dummy0) entered forwarding state
[ 2340.957813][   T12] dummy0: left allmulticast mode
[ 2340.958547][   T12] dummy0: left promiscuous mode
[ 2340.958863][   T12] br0: port 1(dummy0) entered disabled state