[ 1726.497817] br0: port 1(dummy0) entered blocking state
[ 1726.497844] br0: port 1(dummy0) entered disabled state
[ 1726.497876] dummy0: entered allmulticast mode
[ 1726.497912] dummy0: entered promiscuous mode
[ 1726.500421] br0: port 1(dummy0) entered blocking state
[ 1726.500468] br0: port 1(dummy0) entered forwarding state
[ 1726.683918] dummy0: left allmulticast mode
[ 1726.683942] dummy0: left promiscuous mode
[ 1726.683959] br0: port 1(dummy0) entered disabled state