This comprehensive guide shows telecommunication engineers and DSL vendors how to quickly get a handle on ADSL and DSL technology without having to wade through technical documentation. In addition, it provides detailed information on installation of ADSL and DSL technology.

A guide to Synchronous Optical Network (SONET) architecture, deployment, equipment and services. This edition offers expanded coverage of SDH, SONET equipment and providers, OAM&P, and more. It also contains new coverage of virtual tributaries, and ring configuration and protection.

IS-IS has always been my favourite Interior Gateway Protocol. Its elegant simplicity, its well-structured data formats, its ?exibility and easy extensibility are all appealing IS-IS epitomizes link-state routing. Whether for this reason or others, IS-IS is the IGP of choice in some of the world s largest networks. Thus, if one is at all interested in routing, it is well worth the time and effort to learn IS-IS. However, it is hazardous to call any routing protocol simple . Every design decision, be it in architecture, implementation or deployment, has consequences, some unanti- pated, some...

This text covers IP packets directly on a SONET transport, and direct-to-fiber interfaces without SONET. It offers detailed examples of SONET deployments, plus a chapter on SONET vendors with key analysis of products available.