[ 1730.638952] br0: port 1(dummy0) entered blocking state
[ 1730.639018] br0: port 1(dummy0) entered disabled state
[ 1730.639063] dummy0: entered allmulticast mode
[ 1730.639122] dummy0: entered promiscuous mode
[ 1730.641663] br0: port 1(dummy0) entered blocking state
[ 1730.641702] br0: port 1(dummy0) entered forwarding state
[ 1730.822010] dummy0: left allmulticast mode
[ 1730.822047] dummy0: left promiscuous mode
[ 1730.822079] br0: port 1(dummy0) entered disabled state