摘要： 探讨了基于多QoS约束的路由交换原型系统及其关键技术的设计和实现。通过分析传统路由交换体系中路由协议和交换机制的局限性,提出支持多QoS约束的QOSPF路由协议,并在此基础上结合多协议标记交换技术,实现了基于多QoS约束的路由交换原型系统,它能为数据流建立满足多QoS约束的标记交换路径,不仅满足了数据流的多QoS需求,并能提高分组交换效率。最后通过实验验证了原型系统的有效性和可行性。

关键词: 路由交换, QoS, QOSPF, 多协议标记交换, 标记交换路径

Abstract: This paper discusses the design and implementation of a new routing/switching system and its key technologies. After analyzing the limitations of traditional routing protocols and switching mechanisms, it presents a routing protocol named QOSPF (QoS routing extensions to OSPF) which can compute multi-QoS constraints route. In addition, by combining QOSPF protocol and MPLS (multi protocol label switching) technology, the paper implements the routing/switching system which is capable to setup QoS-based LSP (label switched path). Therefore, this routing/switching system can not only satisfy the QoS demand of data flow but also forward the data more efficiently. Finally, the feasibility and the effectiveness of the system are proved through well-chosen experiments.

中图分类号: 

• TN915.05