[ 1711.918061][T17935] br0: port 1(dummy0) entered blocking state
[ 1711.918238][T17935] br0: port 1(dummy0) entered disabled state
[ 1711.918406][T17935] dummy0: entered allmulticast mode
[ 1711.919063][T17935] dummy0: entered promiscuous mode
[ 1711.932513][T17936] br0: port 1(dummy0) entered blocking state
[ 1711.932668][T17936] br0: port 1(dummy0) entered forwarding state
[ 1713.062167][   T12] dummy0: left allmulticast mode
[ 1713.062313][   T12] dummy0: left promiscuous mode
[ 1713.062589][   T12] br0: port 1(dummy0) entered disabled state