[ 1951.330705][ T5575] br0: port 1(dummy0) entered blocking state
[ 1951.330933][ T5575] br0: port 1(dummy0) entered disabled state
[ 1951.331168][ T5575] dummy0: entered allmulticast mode
[ 1951.332186][ T5575] dummy0: entered promiscuous mode
[ 1951.359684][ T5576] br0: port 1(dummy0) entered blocking state
[ 1951.359918][ T5576] br0: port 1(dummy0) entered forwarding state
[ 1953.311799][   T12] dummy0: left allmulticast mode
[ 1953.312974][   T12] dummy0: left promiscuous mode
[ 1953.313216][   T12] br0: port 1(dummy0) entered disabled state