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首页> 外文会议>International Conference on Cybernetics and Information Technologies, Systems and Applications(CITSA2004) and 10th International Conference on Information Systems Analysis and Synthesis(ISAS2004) vol.1 >Using Multi-Protocol Label Switching (MPLS) for Multimedia Applications
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Using Multi-Protocol Label Switching (MPLS) for Multimedia Applications

机译：在多媒体应用中使用多协议标签交换（MPLS）

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摘要

It is believed that Multi-Protocol Label Switching, MPLS, is very beneficial in managing traffic when some links or paths are under and/or over utilized. A comparative analysis of an MPLS and non-MPLS network is provided when a high-traffic generating multimedia application is implemented over a highly utilized network. Video-conferencing is the application of choice for this comparative study. Video-conferencing multimedia-type applications generate a significant amount of bytes per second. In addition to large traffic loads, videoconferencing traffic has to be transmitted in streams versus bursts in providing desired quality-of-service levels. This study shows that Multi-Protocol Label Switching (MPLS) can improve network performance for video-conferencing type applications in heavy traffic environments. MPLS facilitates a method where streams of video-conferencing IP packets traverse through a switched network without changing their structure. With MPLS, the processing time for a videoconferencing IP packet is supposedly reduced at each Label Switching Router (LSR) because the need for a layer-3 lookup is eliminated. Routing information is also reduced in MPLS-based networks because network traffic can be directed to utilize links and nodes having less congestion and/or lower cost association. The following simulation study is an effort to quantitatively illustrate the benefit of using MPLS in implementing a video-conferencing application in a heavy traffic environment.
机译：可以相信，当某些链路或路径使用不足和/或过度使用时，多协议标签交换（MPLS）在管理流量方面非常有益。当在高度利用的网络上实现高流量生成的多媒体应用程序时，可以对MPLS和非MPLS网络进行比较分析。视频会议是此比较研究的首选应用程序。视频会议多媒体类型的应用程序每秒生成大量字节。除了大的通信量负载之外，视频会议通信量还必须以流而不是突发的方式进行传输，以提供所需的服务质量级别。这项研究表明，多协议标签交换（MPLS）可以在交通繁忙的环境中提高视频会议类型应用程序的网络性能。 MPLS促进了一种方法，其中视频会议IP数据包流在不更改其结构的情况下穿过交换网络。使用MPLS，由于消除了对第3层查找的需要，因此可以在每个标签交换路由器（LSR）上减少视频会议IP数据包的处理时间。在基于MPLS的网络中，路由信息也减少了，因为可以指导网络流量使用拥塞少和/或成本关联少的链路和节点。以下仿真研究旨在定量地说明使用MPLS在交通繁忙的环境中实现视频会议应用程序的好处。

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