[ 2000.859236][T10776] br0: port 1(dummy0) entered blocking state
[ 2000.859427][T10776] br0: port 1(dummy0) entered disabled state
[ 2000.859585][T10776] dummy0: entered allmulticast mode
[ 2000.860832][T10776] dummy0: entered promiscuous mode
[ 2000.889987][T10777] br0: port 1(dummy0) entered blocking state
[ 2000.890330][T10777] br0: port 1(dummy0) entered forwarding state
[ 2002.816123][   T12] dummy0: left allmulticast mode
[ 2002.817118][   T12] dummy0: left promiscuous mode
[ 2002.817349][   T12] br0: port 1(dummy0) entered disabled state