一种灵活精确的SDN交换机南向协议性能测试系统

A Flexible and Accurate SDN Switch Southbound Protocol Performance Test System

【目的】SDN交换机南向协议性能测试系统致力于通过构造测试场景,按照一定的流量策略探测被测交换机各项性能指标,评价其是否满足用户性能需求。【文献范围】本文重点调研了SDN交换机南向协议的发展历程、公开的SDN交换机性能测试结果以及相关SDN交换机性能测试文献等。【方法】本文给出一种灵活精确的SDN交换机南向协议性能测试系统,采用软硬件结合的架构保证了系统良好的可扩展性、灵活的流量构造能力以及纳秒级的时间测量精度。【结果】基于FAST架构,本文以OpenFlow协议为例实现了灵活精确的SDN交换机南向协议性能测试系统,并针对新华三交换机进行了一系列OpenFlow协议性能测试。【局限】本文所提出的方案仅适用于单个交换机无加密南向协议的性能测试,针对SDN交换机集群性能测试所需的场景模拟以及加密南向协议的解密突破仍需进一步探索。【结论】通过针对新华三交换机进行了OpenFlow流表性能测试,客观的评价了该交换机的实际性能,验证了本测试系统的可用性。

[Objective]The SDN switch southbound protocol performance testing system is dedicated to constructing test scenarios,detecting various performance indicators of the switch under test according to a certain traffic strategy,and evaluating whether it meets user performance requirements.[Scope of the literature]This article focuses on the development history of the SDN switch southbound protocols,the published SDN switch performance test results,and related SDN switch performance test literature,etc.[Methods]A flexible and accurate SDN switch southbound protocol performance test system is proposed in this article.A hardware/software codesign architecture is used to ensure scalability of the system,flexible flow construction capability,and nanosecond-level time measurement accuracy.[Results]Based on the FAST architecture,a flexible and accurate SDN switch southbound protocol performance test system for OpenFlow protocol is implemented.This system has conducted a series of OpenFlow protocol performance tests to a H3C switch.[Limitations]The scheme proposed in this article is only applicable to the performance test of a single switch without encryption southbound protocol.The scenario simulation required for SDN switch cluster performance test and the decryption breakthrough of encrypted southbound protocol still need to be further explored.[Conclusions]Through the OpenFlow flow table performance test of the H3C switch,the actual performance of the switch is objectively evaluated,and the availability of this test system is verified.