基于思科模拟器的中小企业网络设计

Network design scheme of small and medium-sized enterprises based on the CISCO simulator

信息技术高速发展,原有的网络设计方案已经无法满足中小企业复杂多变的需求,需要借助于新技术改进原有网络架构,同时需要充分利用原有设备,最大限度保护企业对信息资产的投资。本方案首先介绍了思科模拟器、虚拟局域网、三层交换机和端口映射等技术概念,其次给出了具体的设计和实现步骤,通过增加三层交换机,利用划分虚拟局域网和端口映射技术实现了内外网通信和虚拟局域网间通信,最后在思科模拟器上测试,使该设计方案得到了可行性验证,有效提高了企业网络的稳定性和安全性。

As the rapid development of information technology,original network design scheme can not meet the complex needs of enterprises.In this paper,the scheme takes full use of the original layer 2 switches and servers.It can protect the investments of small and medium-sized enterprises.Firstly,it introduces CISCO simulator software,layer 3 switch,Virtual Local Area Network and port mapping technologies.Secondly,it presents the improved design scheme to achieve the cross device communication between different VLAN with the help of VLAN division technology and the layer 3 switch.And it also achieves access to the intranet and cloud host with the help of port mapping technology.Finally,the scheme is verified on the CISCO Packet Tracer software.It can improve the security and stability of enterprise network.