[ 1963.904667][T11747] br0: port 1(dummy0) entered blocking state
[ 1963.904899][T11747] br0: port 1(dummy0) entered disabled state
[ 1963.905120][T11747] dummy0: entered allmulticast mode
[ 1963.906194][T11747] dummy0: entered promiscuous mode
[ 1963.935637][T11748] br0: port 1(dummy0) entered blocking state
[ 1963.935901][T11748] br0: port 1(dummy0) entered forwarding state
[ 1965.908057][   T69] dummy0: left allmulticast mode
[ 1965.908359][   T69] dummy0: left promiscuous mode
[ 1965.908589][   T69] br0: port 1(dummy0) entered disabled state