Planning a SONET network

The author examines the transition from today´s asynchronous network to tomorrow´s advanced all-SONET (synchronous optical network) network. Network planning studies have identified three phases in the development of a SONET network: initial SONET entry, SONET penetration, and the introduction of new broadband services. The author presents the results of studies conducted to establish deployment strategies and triggers which guarantee the maximum benefit from SONET at each phase of its deployment. The S/DMS product family, which is specifically designed to capture these benefits in a multivendor environment, is discussed. It is noted that the planning guidelines provided should assist operating company and interexchange planners in deploying SONET cost-effectively, establishing a SONET infrastructure quickly, and growing the network to trigger and accommodate a variety of new broadband services