[ 1599.278171] br0: port 1(dummy0) entered blocking state
[ 1599.278245] br0: port 1(dummy0) entered disabled state
[ 1599.278318] dummy0: entered allmulticast mode
[ 1599.278420] dummy0: entered promiscuous mode
[ 1599.281062] br0: port 1(dummy0) entered blocking state
[ 1599.281098] br0: port 1(dummy0) entered forwarding state
[ 1599.464581] dummy0: left allmulticast mode
[ 1599.464611] dummy0: left promiscuous mode
[ 1599.464641] br0: port 1(dummy0) entered disabled state