Designing an ATM switch for extreme reliability

25 March 1999

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Lucent Technologies PacketStar ATM Core Switch is designed to deliver the high reliability required in public telecommunications networks. It achieves this reliability through use of a variety of strategies including duplication of hardware and software components, isolation of groups of components to minimize the effect of problems, fault recovery hierarchies, and others. As a result, cell loss is very minimal during problems, and permanent virtual circuits are unaffected even if the main switch control system goes down. (C) 1999 Elsevier Science B.V. All rights reserved.