[ 1941.856272] br0: port 1(dummy0) entered blocking state
[ 1941.856355] br0: port 1(dummy0) entered disabled state
[ 1941.856424] dummy0: entered allmulticast mode
[ 1941.856513] dummy0: entered promiscuous mode
[ 1941.859306] br0: port 1(dummy0) entered blocking state
[ 1941.859339] br0: port 1(dummy0) entered forwarding state
[ 1942.055987] dummy0: left allmulticast mode
[ 1942.056060] dummy0: left promiscuous mode
[ 1942.056121] br0: port 1(dummy0) entered disabled state