[ 1629.743941] br0: port 1(dummy0) entered blocking state
[ 1629.743992] br0: port 1(dummy0) entered disabled state
[ 1629.744028] dummy0: entered allmulticast mode
[ 1629.744079] dummy0: entered promiscuous mode
[ 1629.746649] br0: port 1(dummy0) entered blocking state
[ 1629.746711] br0: port 1(dummy0) entered forwarding state
[ 1629.932222] dummy0: left allmulticast mode
[ 1629.932292] dummy0: left promiscuous mode
[ 1629.932352] br0: port 1(dummy0) entered disabled state