【摘要】 文章提出了一个基于MPLS区分服务(DifferentServices)的N-to-1保护方法。它首先按照区分服务的思想将数据流分成不同的服务类,并将不同类别的流转发到不同的工作路径上,在此基础上提出了动态和静态N-to-1的保护方案。该方案充分利用了MPLS所具有的ER-LSP和CR-LSP的优点,和MPLS特有的保护机制,具有重路由快,分组丢失率低,数据包逆序少的特点,它能提供普通数据链路的保护,适合用于VoIP和VOD传输的骨干链路。该方案既能有效改善网络的负载平衡,又能按照服务级别对工作路径提供不同级别的快速保护,该文对算法的实现进行了详细的描述.并对所提出的算法进行了仿真。更多还原

【Abstract】 The article proposes an N-to-1protection method on the basis of MPLS differentiated service.The traffic is divided into different service types according to the thought of differentiated service,and the traffic of different types are forwarded to different working routes.Based on this principle,a dynamic and static N-to-1protection method is put forward.This method makes full use of the advantages of ER-LSP and CR-LSP that MPLS possesses and of the pro-tection mechanism that is unique to MPLS.Fast reroute,low percentage of packets losing,fewer inverse order of data packets are the features of this method.The method provides protection for ordinary data links,and is suitable to back-bone links of VoIP and VOD transmission.The method can improve the load balance of network effectively and provide fast protection of different levels for working routes according to SLA(service level agreement ).The realization of algo-rithm and its simulation are described in detail.更多还原