SONET equipment availability requirements

Abstract

The author discusses channel availability criteria for synchronous optical network (SONET) network elements. He considers the existing short-haul, interoffice channel availability requirements that apply to the current asynchronous network, discusses how these requirements apply to the synchronous network, and translates the requirements to channels transmitted through SONET network elements. The SONET network elements must have minimum availability requirements to enable the SONET network to meet end-to-end availability performance. Individual terminal and regenerator availability criteria are proposed.<>