[ 1764.743916] br0: port 1(dummy0) entered blocking state
[ 1764.743995] br0: port 1(dummy0) entered disabled state
[ 1764.744052] dummy0: entered allmulticast mode
[ 1764.744135] dummy0: entered promiscuous mode
[ 1764.748566] br0: port 1(dummy0) entered blocking state
[ 1764.748631] br0: port 1(dummy0) entered forwarding state
[ 1765.046560] dummy0: left allmulticast mode
[ 1765.046604] dummy0: left promiscuous mode
[ 1765.046690] br0: port 1(dummy0) entered disabled state