前言 随着ＷＴＯ的临近，国内各企业不论在数据访问类型和信息量大小上都对企业计算机网络提出了更高的要求。本文介绍以实达全系列网络产品为基础，为用户提供安全、高效、高性价比的大中型企业广域网、内部网络解决方案。 在广域网建设上，采用帧中继线路满足用户对速率和多 Preface With the approach of WTO, all domestic enterprises put forward higher requirements on their computer networks in terms of the type of data access and the amount of information. This article describes the full range of Shida products based on the network to provide users with safe, efficient and cost-effective medium-sized enterprises WAN, internal network solutions. In the WAN construction, the use of frame relay lines to meet the user rate and more