Multi-box Clusters In The Router IP Forwarding Test Research And Implementation

Quidway NetEngine 5000E core router (hereinafter referred to NE5000E) Huawei has introduced high-end networking products, mainly used in IP backbone network, IP MAN and various large-scale IP backbone network layer of the heart. Multi-box cluster router product forms:single frame, two frame cluster, four box cluster and multi-box clusters. Whatever the form of products, its basic function is to provide fast forwarding platform, to achieve information exchange.In this paper, multi-box cluster router technology background, clusters of exchange structure, Program to proceed forward from NE5000E Dune macro analysis of the first IP packet forwarding system processes, including upstream NP (Network Processor), uplink FAP (Fabric Access Processor), down FAP, downlink packet processing NP, then microscopic features of the SD588 forwarding engines, structures and processes studied. Article compares the two box cluster, four box cluster, the cluster of product form eight box Dune form of product structure, so as to come form different products have their own advantages and disadvantages. Multi-box cluster IP router forwarding performance is an important index of equipment, according to RFC2544, the evaluation of commonly used indicators:throughput, packet loss rate, delay and jitter and so on. Routers at the core of multi-box cluster node performance requirements are very strict, the IP forwarding performance include:interface forwarding, forwarding veneer forwarding capability and machine capacity. In practice, the flow is complex and diverse, the business is diverse, the article to the current network traffic as a model multi-box clusters on the router specific functional tests and performance tests, that is, fully verify the simple IP forwarding environment also taken into account a variety of business, the superposition of all traffic validation, Including Full Mesh wire-speed forwarding capability, equipment throughput, port throughput, delay and other characteristics, to verify its capability in handling, forwarding capacity, scalability, reliability, performance.This article is based on the multi-box clusters in the router IP forwarding performance of the Test Technology. At present the core router clustering technology is gradually maturing, its commercial capacity, the reliability of hardware and software system stability, the market still need to undergo a long period of validation, but it will be the future direction of development of the core router.