[ 1624.745956] br0: port 1(dummy0) entered blocking state
[ 1624.746028] br0: port 1(dummy0) entered disabled state
[ 1624.746102] dummy0: entered allmulticast mode
[ 1624.746187] dummy0: entered promiscuous mode
[ 1624.749683] br0: port 1(dummy0) entered blocking state
[ 1624.749717] br0: port 1(dummy0) entered forwarding state
[ 1624.947049] dummy0: left allmulticast mode
[ 1624.947122] dummy0: left promiscuous mode
[ 1624.947187] br0: port 1(dummy0) entered disabled state