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The building blocks of a data-aware transport network: deploying viable Ethernet and virtual wire services via multiservice ADMs

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2 Author(s)
E. Hernandez-Valencia ; Bell Labs., Lucent Technol., Holmdel, NJ, USA ; G. Rosenfeld

SONET/SDH technologies constitute the core transport infrastructure of major telecom service providers worldwide. As the percentage of packet-oriented traffic in the overall traffic demand continues to rise, prompted by the widespread adoption of the Internet protocol suite, and recently by the fast adoption of Ethernet services, there is increasing pressure to improve the service provider's transport infrastructure in ways that make it data-aware and cost-effective for packet-oriented applications. Steps in this direction include the adoption of native physical interfaces, for Ethernet and storage area networks as service interfaces, or full integration of packet switching capabilities from Ethernet, resilient packet ring, and MPLS technologies. This article discusses the emerging building blocks for next-generation data-aware transport networks and next-generation transport network elements.

Published in:

IEEE Communications Magazine  (Volume:42 ,  Issue: 3 )