[ 1971.149067][T11278] br0: port 1(dummy0) entered blocking state
[ 1971.149273][T11278] br0: port 1(dummy0) entered disabled state
[ 1971.149434][T11278] dummy0: entered allmulticast mode
[ 1971.150634][T11278] dummy0: entered promiscuous mode
[ 1971.180832][T11279] br0: port 1(dummy0) entered blocking state
[ 1971.181325][T11279] br0: port 1(dummy0) entered forwarding state
[ 1973.163377][   T12] dummy0: left allmulticast mode
[ 1973.163614][   T12] dummy0: left promiscuous mode
[ 1973.163898][   T12] br0: port 1(dummy0) entered disabled state