[ 1968.372328][T23681] br0: port 1(dummy0) entered blocking state
[ 1968.372518][T23681] br0: port 1(dummy0) entered disabled state
[ 1968.372692][T23681] dummy0: entered allmulticast mode
[ 1968.373579][T23681] dummy0: entered promiscuous mode
[ 1968.397513][T23682] br0: port 1(dummy0) entered blocking state
[ 1968.398093][T23682] br0: port 1(dummy0) entered forwarding state
[ 1971.117358][   T12] dummy0: left allmulticast mode
[ 1971.118090][   T12] dummy0: left promiscuous mode
[ 1971.118468][   T12] br0: port 1(dummy0) entered disabled state