[ 2031.474012] br0: port 1(dummy0) entered blocking state
[ 2031.474069] br0: port 1(dummy0) entered disabled state
[ 2031.474101] dummy0: entered allmulticast mode
[ 2031.474158] dummy0: entered promiscuous mode
[ 2031.477778] br0: port 1(dummy0) entered blocking state
[ 2031.477812] br0: port 1(dummy0) entered forwarding state
[ 2031.767334] dummy0: left allmulticast mode
[ 2031.767381] dummy0: left promiscuous mode
[ 2031.767472] br0: port 1(dummy0) entered disabled state