[ 1880.929187][ T8149] br0: port 1(dummy0) entered blocking state
[ 1880.929794][ T8149] br0: port 1(dummy0) entered disabled state
[ 1880.929955][ T8149] dummy0: entered allmulticast mode
[ 1880.930826][ T8149] dummy0: entered promiscuous mode
[ 1880.959129][ T8150] br0: port 1(dummy0) entered blocking state
[ 1880.959681][ T8150] br0: port 1(dummy0) entered forwarding state
[ 1882.852112][   T68] dummy0: left allmulticast mode
[ 1882.853230][   T68] dummy0: left promiscuous mode
[ 1882.853524][   T68] br0: port 1(dummy0) entered disabled state