[ 2264.551481][T12607] br0: port 1(dummy0) entered blocking state
[ 2264.551674][T12607] br0: port 1(dummy0) entered disabled state
[ 2264.551834][T12607] dummy0: entered allmulticast mode
[ 2264.552716][T12607] dummy0: entered promiscuous mode
[ 2264.586006][T12608] br0: port 1(dummy0) entered blocking state
[ 2264.586179][T12608] br0: port 1(dummy0) entered forwarding state
[ 2266.884312][   T12] dummy0: left allmulticast mode
[ 2266.884493][   T12] dummy0: left promiscuous mode
[ 2266.884717][   T12] br0: port 1(dummy0) entered disabled state