[ 2061.314439][T15749] br0: port 1(dummy0) entered blocking state
[ 2061.314931][T15749] br0: port 1(dummy0) entered disabled state
[ 2061.315148][T15749] dummy0: entered allmulticast mode
[ 2061.316235][T15749] dummy0: entered promiscuous mode
[ 2061.347200][T15750] br0: port 1(dummy0) entered blocking state
[ 2061.347479][T15750] br0: port 1(dummy0) entered forwarding state
[ 2063.345015][   T12] dummy0: left allmulticast mode
[ 2063.345956][   T12] dummy0: left promiscuous mode
[ 2063.346184][   T12] br0: port 1(dummy0) entered disabled state