第一部分：互联网络联网基础知识

互联网络是众独立网络的一个集合，通过中间联网设备s连接起来，其功能就像单一的大型网络。互联网络联网指的是,满足创建和管理互联网络所挑战需要的行业,产品,和例程。

-PART 1. Internetworking Basics

An internetwork is a collection of individual networks, connected by intermediate networking devices, that functions as a single large network. Internetworking refers to the industry, products, and procedures that meet the challenge of creating and administering internetworks.