Tutorial on Survivability of Telecommunications Systems: Concepts and Architectures

Public telecommunications systems have evolved to be highly reliable through hardware and software redundancy, fault recognition and containment, and fast and effective recovery. There is now a new emphasis for telecommunications systems to also be highly survivable so as to limit the extent of service loss after a catastrophic loss of infrastructure. This tutorial will provide an introduction to the subject of telecommunications system survivability from a proactitioner's perspective. Our focus is exclusively on the voice network for wireline, cellular and voice over packet implementations.