毕业设计---园区网络设计与实现

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1、 I 摘摘 要要 随着计算机网络的迅猛发展，曾经在园区网中被广泛使用的 10M/100M 以太网技术、 ATM 等技术已经渐渐不能适应业务需求。现在，千兆以至 10G 级别以太网技术正逐渐成 为园区网主干的主流技术。因此，许多大型园区网络面临着技术改造或者重新设计。本文 针对当前园区网络中存在的设计混乱、层次复杂、稳定性低，安全性不足等一系列问题， 采用工程化设计方法，依照行业规范，设计并模拟实现一个园区网络，该网络依照行业规 范设计，采用新近成熟的产品与技术，满足用户安全性、通用性、可操作性和拓展性的要 求，由于网络设计过程中严格依照行业规范，采用模块化设计思想，因此网络系统各层可 移植性强

2、，极大的方便了以后的网络设计工作。 关键词：关键词：交换机；路由器；设计；实施 Abstract With the rapid development of computer network, the kinds of business in enterprise or organization have increased, and the data flow of business has risen a lot, the tendence of which is very evident. The once widely usesd technologies 10/100M Ethern

3、et, ATM etc. gradually fail to meet the demands of business; at the moment, the Ethernet of 1000M or even 10G is becoming the main technology in the major campus network. In consequence, many large campus network are facing the problems of technology changing or new designing. Aiming at the problems

4、 in campus net and enterprise net such as disorderly design, complicated levels, low stability, lack of security and so on, this thesis will adopt the engineering design method, According to the professional standards, the author of this thesis intends to design and imitate a large scale of campus n

5、et. By following the professional standards and adopting the updated products as well as technology, this net can satisfy the users for its security, versatility, manipulation and extension. Because of the strict conformity to professional standards in the designing of the net and the employment of

6、module design technology, every level in this net system can be implanted, which will greatly benefit the net designing work in the future. keywords:switch;router;design;implement III 目目 录录 摘 要 I 英文摘要 . II 第一章 绪论 . 1 1.1 选题来源 1 1.2 主要内容 1 1.3 论文结构 1 第二章 园区网概述 . 3 2.1 园区网含义 3 2.2 园区网特点 3 2.3 园区网发展趋势 3 第三章 园区网设计 . 4 3.1 需求分析 4 3.2 网络设计原则 4 3.3 网络模型设计 5 3.3.1 核心层（Core Layer） 6 3.3.2 汇聚层（Distribution Layer） 6 3.3.3 接入层（Access Layer） 6 3.4 网络模型选择 6 3.5 园区网络拓扑图 7 3.6 IP 地址规划. 7 3.7 VLAN 规划 8 3.8 路由协