| 地铁通信系统的RPR |
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| 引用本文： | 贾志华.地铁通信系统的RPR[J].计算机与网络,2009(24):48-50. |
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| 作者姓名： | 贾志华 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北石家庄050081 |
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| 摘 要： | 地铁传输系统承载着大量的业务，在保留同步数字体系（SDH）4优势的基础上，将弹性分组环（RPR）处理功能融入其中，强化多业务传输平台（MSTP）的以太网业务处理能力，可以实现以太网带宽的统计复用、公平的带宽分配、更加严格的业务分类（Cos）和服务质量（Oos）以及更加安全的用户隔离功能，逐步成为当前城域网建设的主流技术。解决了目前地铁通信系统中IP业务的不断增长的问题。
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| 关 键 词： | 同步数字体系 弹性分组环 业务分类 服务质量 |
Research on Resilient Packet Ring of Metro Communication System |
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| JIA Zhi-hua.Research on Resilient Packet Ring of Metro Communication System[J].China Computer & Network,2009(24):48-50. |
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| Authors: | JIA Zhi-hua |
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| Affiliation: | JIA Zhi-hua (The 54th Research institute of CETC, Shijiazhuang Hebei 050081, China) |
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| Abstract: | Metro transmission system carries a large number of business. On the basis of keeping synchronous digital hierarchy （SDH）, the processing capability of resilient packet ring （RPR） is added to enhance multi-service transport platform （MSTP） Ethernet business processing capabilities of IP network and implement statistical multiplexing of Ethemet bandwidth, fair bandwidth allocation, more stringent class of service （Cos） and quality of service （Qos） and more secure user isolation functions. The metro transmission system gradually becomes the mainstream technology in the field of city area network construction, and it can be used to solve the problem of continuous growth of current metro IP business communication systems. |
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| Keywords: | synchronous digital hierarchy resilient packet ring class of service quality of service |
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