[ 1772.870882] br0: port 1(dummy0) entered blocking state
[ 1772.870956] br0: port 1(dummy0) entered disabled state
[ 1772.871025] dummy0: entered allmulticast mode
[ 1772.871115] dummy0: entered promiscuous mode
[ 1772.874269] br0: port 1(dummy0) entered blocking state
[ 1772.874302] br0: port 1(dummy0) entered forwarding state
[ 1773.055506] dummy0: left allmulticast mode
[ 1773.055546] dummy0: left promiscuous mode
[ 1773.055575] br0: port 1(dummy0) entered disabled state