| 摘要 |
<p>In a network communication system passing communication packets are monitored to detect whether a packet or a combination of packets is received from a network that meets a predetermined condition. In response to detection a signal is generated to an application layer that processes a data stream or messages that are assembled from the packets in processing layers between the application layer and an intermediate layer that detects the condition. Furthermore the packets that led to detection are normally processed by these processing layers. Thus an additional signal is provided from information at the packet level for controlling operation in an application layer at a data stream or message level. The additional signal may be provided to the application layer even before data from the related packets arrives at the application layer.</p> |
