[ 2062.344569][T20774] br0: port 1(dummy0) entered blocking state
[ 2062.344756][T20774] br0: port 1(dummy0) entered disabled state
[ 2062.344922][T20774] dummy0: entered allmulticast mode
[ 2062.345809][T20774] dummy0: entered promiscuous mode
[ 2062.373660][T20775] br0: port 1(dummy0) entered blocking state
[ 2062.373947][T20775] br0: port 1(dummy0) entered forwarding state
[ 2064.336228][   T12] dummy0: left allmulticast mode
[ 2064.337177][   T12] dummy0: left promiscuous mode
[ 2064.337405][   T12] br0: port 1(dummy0) entered disabled state