[ 2184.770701][T16571] br0: port 1(dummy0) entered blocking state
[ 2184.771312][T16571] br0: port 1(dummy0) entered disabled state
[ 2184.771523][T16571] dummy0: entered allmulticast mode
[ 2184.772478][T16571] dummy0: entered promiscuous mode
[ 2184.798626][T16572] br0: port 1(dummy0) entered blocking state
[ 2184.798812][T16572] br0: port 1(dummy0) entered forwarding state
[ 2187.085048][   T12] dummy0: left allmulticast mode
[ 2187.085290][   T12] dummy0: left promiscuous mode
[ 2187.085561][   T12] br0: port 1(dummy0) entered disabled state