| 采用主动响应的标签分发协议在卫星网中的实现 |
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| 引用本文： | 张登银,汤志云.采用主动响应的标签分发协议在卫星网中的实现[J].南京邮电大学学报(自然科学版),2005,25(1):18-23. |
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| 作者姓名： | 张登银 汤志云 |
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| 作者单位： | 南京邮电学院,计算机科学与技术系,江苏,南京,210003 |
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| 基金项目： | 国家高科技“八六三”计划(2002AA712037)资助项目 |
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| 摘 要： | 多协议标签交换 (MPLS)需要通过标签分发协议 (LDP)建立类似虚电路的标签转发路径(LSP),而卫星链路由于具有频繁断接性和传输大时延等特点,使得现有LDP难以在卫星网中有效运行。针对卫星网特点,对LDP被动响应拓扑变化的机制进行了改进,并在此基础上提出了基于拓扑驱动的主动响应算法来实现在卫星网中标签分发。
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| 关 键 词： | 卫星网 多协议标签交换 标签分发 主动响应 |
| 文章编号： | 1000-1972(2005)01-0018-06 |
| 修稿时间： | 2003年10月15 |
The Achievement of Label Distribution Protocol with Actively Response in Satellite Network |
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| k ZHANG Deng-yin,TANG Zhi-yun.The Achievement of Label Distribution Protocol with Actively Response in Satellite Network[J].Journal of Nanjing University of Posts and Telecommunications,2005,25(1):18-23. |
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| Authors: | k ZHANG Deng-yin TANG Zhi-yun |
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| Affiliation: | k ZHANG Deng-yin,TANG Zhi-yun Department of Computer Science and Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | The new technology Multiprotocol Label Switch(MPLS) can build Label Switched Path(LSP) which has some points of similarity with virtual circuit through Label Distribution Protocol (LDP). But it is very difficult to run LDP in satellite network which has frequent handoffs of satellites links and long delay of transmission. This paper shows how to improve the ability of passive responding to the change of network topology to adapt to these characteristic of satellite network.It presents a new LDP algorithm which can actively respond to the topology to archive labels distribution in satellite network. |
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| Keywords: | Satellite network Multiprotocol label switch Label distribution Active response |
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