[ 1879.121122][T12785] br0: port 1(dummy0) entered blocking state
[ 1879.121318][T12785] br0: port 1(dummy0) entered disabled state
[ 1879.121481][T12785] dummy0: entered allmulticast mode
[ 1879.122347][T12785] dummy0: entered promiscuous mode
[ 1879.157945][T12786] br0: port 1(dummy0) entered blocking state
[ 1879.158402][T12786] br0: port 1(dummy0) entered forwarding state
[ 1881.117965][   T12] dummy0: left allmulticast mode
[ 1881.119087][   T12] dummy0: left promiscuous mode
[ 1881.119384][   T12] br0: port 1(dummy0) entered disabled state