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目前的电信用户接入几乎囊括了所有的方式,既有早期的铜线接入,包括ISDN、xDSL等方式,又有目前广泛应用的PDH光端机方式,还有可靠性非常高,但成本和组网复杂性也同样很高的MSTP设备接入方式。而伴随着通信网络技术和国家经济的迅猛发展大部分的企业所需要的业务越来越复杂,普普通通的网络环境已很难满足他们的要求。一个网络的运行情况是否良好,对能否提供更高效率的工作至关重要,因此对于一些大客户采用了租用数据专线方式,本文将主要介绍几种常见的集中专线接入方式及他们的特性。
The current access to telecommunications subscribers covers almost all the ways, both the early access to copper, including ISDN, xDSL and other methods, as well as the current widely used PDH optical transceiver, as well as the reliability is very high, but the cost and group Network complexity is also high MSTP device access. With the rapid development of communication network technology and national economy, most enterprises need more and more complicated services, and the common network environment can hardly meet their requirements. Whether a network is operating well is crucial to providing more efficient work. Therefore, for some major customers, a leased data leased line is used. This document mainly introduces several common leased line access methods and their characteristics .