[ 1735.769391] br0: port 1(dummy0) entered blocking state
[ 1735.769490] br0: port 1(dummy0) entered disabled state
[ 1735.769571] dummy0: entered allmulticast mode
[ 1735.769679] dummy0: entered promiscuous mode
[ 1735.773262] br0: port 1(dummy0) entered blocking state
[ 1735.773301] br0: port 1(dummy0) entered forwarding state
[ 1736.012230] dummy0: left allmulticast mode
[ 1736.012322] dummy0: left promiscuous mode
[ 1736.012390] br0: port 1(dummy0) entered disabled state