基于分布式交换机IRF堆叠的板间通信研究与实现

发布时间：2018-02-10 19:39

本文关键词： IRF堆叠分布式交换机板间通信队列调度　出处：《南京邮电大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着互联网的发展,网络规模日益扩大,为了简化网络组网难度,提升系统可靠性和网络性能,IRF(Intelligent Resilient Framework,智能弹性框架)堆叠技术作为虚拟化系统的代表技术之一应运而生。虽然IRF堆叠技术的出现满足了目前网络的需求,但是IRF堆叠系统中板间通信的网络速率和容量成指数的上升。为了适应板间通信成倍增加的网络速率和容量,交换机正在朝着分布式交换机的方向发展。但是要在IRF堆叠系统中实现CPU之间的报文通信,不仅要考虑本交换机内的CPU通信即框内通信,还要考虑到交换机之间的CPU通信即跨框通信。板间通信(包括IRF堆叠系统的框内通信和跨框通信)是分布式交换机IRF堆叠系统形成的基本支撑模块,用以支持IRF堆叠系统不同单板上CPU之间报文通信。所以IRF堆叠系统中板间通信技术是一项非常值得研究的课题。本论文的主要研究内容是基于H3C公司的SR88X高端分布式交换机的IRF堆叠系统中的板间通信。首先阐述了IRF堆叠的基本概念,二层转发基本原理,以及LSW(交换芯片)原理等等,并在此基础上,设计了IRF堆叠系统中板间通信的实现方案。然后从IRF堆叠系统的框内通信和跨框通信两个方面对系统中的报文通信机制进行了设计,同时,本论文还研究了队列调度,优化了IRF堆叠系统中板间通信的队列调度机制。最后,完成了IRF堆叠系统的框内通信和跨框通信的测试,并且分析测试结果,结果符合系统的测试要求。
[Abstract]:With the development of the Internet, the scale of the network is expanding day by day. As one of the representative technologies of virtualization system, the stacking technology of Intelligent Resilient Framework (Intelligent Resilient Framework) arises at the historic moment, although the emergence of IRF stacking technology meets the needs of the current network. However, the network rate and capacity of inter-plate communication in IRF stack system are exponentially increased. In order to adapt to the increasing network speed and capacity of inter-board communication, The switch is developing towards the direction of distributed switch. But in order to realize the message communication between CPU in the IRF stack system, we should not only consider the CPU communication in this switch, that is, the communication in the box. It is also considered that the CPU communication between switches is cross-frame communication. Inter-board communication (including intra-frame communication and cross-frame communication of IRF stack system) is the basic supporting module for the formation of IRF stack system in distributed switches. In order to support the message communication between CPU on different veneers of IRF stack system, the technology of communication between boards in IRF stack system is a subject worth studying. The main research content of this thesis is based on H3C SR88X high end score. The communication between boards in the IRF stack system of the distributed switch. Firstly, the basic concept of the IRF stack is introduced. The basic principle of layer 2 forwarding, the principle of LSWs and so on, and on this basis, This paper designs a scheme of inter-board communication in IRF stack system, and then designs the message communication mechanism in IRF stack system from two aspects: in-box communication and cross-frame communication. At the same time, the queue scheduling is also studied in this paper. The queue scheduling mechanism of inter-board communication in IRF stack system is optimized. Finally, the in-box communication and cross-frame communication of IRF stack system are tested, and the test results are analyzed and the results meet the requirements of the system.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP393.05

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