fdb: about what can talk this trace?

Question

[trace] level status
[trace] onStatus
[trace] code NetStream.Play.Stop
[trace] level status
[trace] onStatus
[trace] code NetStream.Play.Stop
[trace] level status
[trace] onStatus
[trace] code NetStream.Play.Stop
[trace] level status
[trace] onStatus
[trace] code NetStream.Play.Stop
[trace] level status
[trace] onStatus
[trace] code NetStream.Play.Stop

it is simple code with

connection.connect(null); and stream.addEventListener( NetStatusEvent.NET_STATUS , onStreamStatus );
stream.play("http://example.com/file.flv"); and public function onStreamStatus ( objectX : Object ) : void { trace...