路由器技术概览 （译文）

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本文译自 思科官方网站
Routers Technology Overview

网络路由器：一种集成服务的方案

网络路由器迅速从单一连接不同网络的设备发展为一种除提供路由外还提供多功能集成服务的设备。思科的顾客越来越多的部署这种集成服务路由器或者高端路由器以提供语音、视频、数据和互联网访问、无线和其他应用。

集成服务网络路由器的好处
集成化的网络路由器方案具有很高的安全性、灵活性并兼容未来的技术，对与公司企业发展尤其新建办事处有很大的益处。

一个设备，多种功能：集成服务网络路由器使企业用户能利用其中多种内置的技术，如语音、无线和高安全性系统来保证网络应用需求的服务质量。因为网络服务是内置的或很容易加载到集成服务网络路由器，所以企业宁可安装一个高端设备也比购买多个提供单一功能的产品要好。

总部和远程站点相同的访问：集成服务网络路由器使所有员工不管是分支办公室还是远程站点如家或者酒店都能一样访问商业应用程序，统一通讯和视频会议。模块化的解决方案允许你为特定的办事处安装特定的功能特征，和在需要时或办公事扩展时进行升级设备。

集中管理：集成服务网络路由器的方案意味着总部的IT员工能够在中央管理其他地方的网络。这就允许IT部门可以项目优先级分配资源，从而达到为所有地区的员工提供稳定可靠的服务。

集成网络安全：集成服务网络路由器和它相应的系统方案，允许企业用户将个人电脑和用户的安全性和可靠性责任交给网络本身管理。这个方案可保护企业用户抵御大量病毒，恶意代码和其他受感染终端笔记本用户发来的不明请求。

通过安装完整的解决方案并集中管理，企业用户可以通过几个种方法如加密、防火墙过滤和病毒防范及入侵检测和防范来保护有价值的商业数据。

从网络路由器获取回报
集成服务的优点可以不管公司的规划进行实施，从而达到减少投资和管理成本并提高生产效率的目的。一个有两个办事处的公司从这获取的利益与成百的分支机构的公司是一样的。

                                              ——by 保罗李

附原文：


Technology Overview
Network Router: An Integrated Services Approach
The network router is quickly evolving from a device dedicated to connecting disparate networks to an integrated services device capable of multiple functions beyond routing. Cisco customers are increasingly deploying integrated services routers, or sophisticated network routers that can deliver voice, video, data and Internet access, wireless, and other applications.
Benefits of the Integrated Services Network Router
Growing companies, especially those opening new offices, can take advantage of integrated network router solutions that are highly secure, flexible, and built to be compatible with future technologies.
One Device, Multiple Functions: An integrated services network router enables organizations to take advantage of numerous built-in technologies such as voice, wireless, and advanced security systems while ensuring the quality of service (QoS) prioritization their network applications demand. Because the network services are built in or can be easily added to the integrated services network router, companies can install one sophisticated device rather than purchase separate products to provide each individual function.
Same Access at Headquarters and Remote Sites: An integrated services network router gives all workers—even those at branch offices or remote sites such as a home or hotel room—the same access to business applications, unified communications, and videoconferencing. Modular solutions allow you to install the features you need for a particular office, and upgrade equipment when needs change or an office expands.
Centralized Management: An integrated services network router approach means technical staff at headquarters can manage the network from a central location. This allows technical departments to allocate resources to priority projects while providing reliable service to employees in all locations.
Integrated Network Security: An integrated services network router, with its systems approach, allows companies to transfer responsibility for security and reliability from individual computers and users to the network itself. This helps protect companies from the influx of viruses, malicious code, and other infections that end users’ laptops might unknowingly acquire.
By installing a complete solution and managing it centrally, companies can protect valuable corporate data using multiple types of protection, such as encryption, firewall filtering, antivirus protection, and intrusion detection and prevention.
Reap the Rewards of a Network Router
From reduced capital and operating expenses to increased productivity, the advantages of integrated services apply regardless of the size of company. A small company with two offices can benefit as much as a company with hundreds of branch offices.


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u2/88533/showart_2030894.html