Cisco on Cisco
Optical Networking Case Study: How Cisco IT Migrated TDM Local Access from SONET to OC-192 Infrastructure
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OC-192 on Cisco ONS 15454 increases network speed, saves money, and improves manageability.
Until 2003 Cisco connected its 40-plus building headquarters campus to outside telecom services using separate OC-48 SONET rings connecting a few central buildings. Over time it became more difficult to add new buildings, which required greater bandwidth, to this SONET fiber. So Cisco IT transitioned from individual OC-48 SONET rings for time-division multiplexing (TDM) local access to a campus-wide OC-192 infrastructure powered by the Cisco ONS 15454 system. This optical networking case study explains the advantages of customer-provided and LEC-provided local access, why and how Cisco IT made the transition to the Cisco ONS 15454 infrastructure, and business benefits such as:
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