Planning and deploying a SONET-based metro network

It is demonstrated that metropolitan networks can be analyzed to develop an architectural strategy that provides both cost-effective bandwidth management and survivability. The planning and deployment considerations, methodologies, and planning tools are discussed. An example of a planned synchronous optical network (SONET) metropolitan network, including the transition from an asynchronous network, is presented. It is shown that the most effective deployment strategy for SONET is built around an infrastructure of survivable SONET rings and automated facility management based on a combination of SONET cross-connects and distributed bandwidth management in SONET ring terminals. This SONET infrastructure will provide the framework for the predicted expansion in communications services, and will meet expanding telecommunication needs.< >