[ 1958.115561][T23153] br0: port 1(dummy0) entered blocking state
[ 1958.115759][T23153] br0: port 1(dummy0) entered disabled state
[ 1958.115934][T23153] dummy0: entered allmulticast mode
[ 1958.117408][T23153] dummy0: entered promiscuous mode
[ 1958.142485][T23154] br0: port 1(dummy0) entered blocking state
[ 1958.142722][T23154] br0: port 1(dummy0) entered forwarding state
[ 1960.082417][   T12] dummy0: left allmulticast mode
[ 1960.082589][   T12] dummy0: left promiscuous mode
[ 1960.082802][   T12] br0: port 1(dummy0) entered disabled state