[ 2318.435672][T18336] br0: port 1(dummy0) entered blocking state
[ 2318.435976][T18336] br0: port 1(dummy0) entered disabled state
[ 2318.436261][T18336] dummy0: entered allmulticast mode
[ 2318.437236][T18336] dummy0: entered promiscuous mode
[ 2318.469362][T18337] br0: port 1(dummy0) entered blocking state
[ 2318.469792][T18337] br0: port 1(dummy0) entered forwarding state
[ 2320.937912][   T12] dummy0: left allmulticast mode
[ 2320.939735][   T12] dummy0: left promiscuous mode
[ 2320.941299][   T12] br0: port 1(dummy0) entered disabled state