高可靠性园区网络规划及实验设计与仿真  

Design and simulation of experiment for planning a high reliability campus network

作　　者：谭志勇 林艳华[1] 郭笑雨 Tan Zhiyong;Lin Yanhua;Guo Xiaoyu(Department of Information Technology,Wuhan Vocational College of Software and Engineering(Wuhan Open University),Wuhan 430033,China)

机构地区：[1]武汉软件工程职业学院(武汉开放大学)信息化中心,武汉430033

出　　处：《现代计算机》2024年第24期85-90,共6页Modern Computer

摘　　要：园区网络通常要提供全天候、不中断的服务,可靠性也成为园区网络在规划过程中需重点考虑的因素。针对单核心网络存在的单点故障风险,以及双核心网络带来的网络环路、链路闲置等问题,提出基于多生成树协议、虚拟路由器冗余协议和链路聚合的高可靠性园区网络规划。使用多生成树协议来消除二层环路并分担不同VLAN的网络流量,通过虚拟路由器冗余协议提供网关备份并分担访问外部的网络流量,双核心之间用链路聚合来增大带宽并备份链接。eNSP上的仿真实验结果表明,该规划可有效降低单点故障风险,提高园区网络的可靠性。Uninterrupted services are essential for campus network,so reliability has become a key factor to consider in planning campus network.There is a risk of single point of failure in the single core network.The dual core network can reduce the risk of single point of failure,but other problems arise such as network loops and idle links.In this paper,a planning of high reliability campus network based on MSTP,VRRP and link aggregation is put forward.MSTP is used to eliminate loops and load sharing traffic of different VLANs,VRRP is used to provide backup gateway and load sharing traffic to external,and link aggregation is used to increase bandwidth between cores and backup links.A simulation experiment is designed based on eNSP to simulate the campus network planned.The simulation results show that this planning can effectively reduce the risk of single point of failure and improve the reliability of campus network.

关 键 词：可靠性 多生成树协议 虚拟路由器冗余协议 链路聚合 仿真实验 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]