[ 1629.106545] br0: port 1(dummy0) entered blocking state
[ 1629.106583] br0: port 1(dummy0) entered disabled state
[ 1629.106619] dummy0: entered allmulticast mode
[ 1629.106665] dummy0: entered promiscuous mode
[ 1629.109221] br0: port 1(dummy0) entered blocking state
[ 1629.109257] br0: port 1(dummy0) entered forwarding state
[ 1629.288851] dummy0: left allmulticast mode
[ 1629.288885] dummy0: left promiscuous mode
[ 1629.288912] br0: port 1(dummy0) entered disabled state