Mr. Xiaolong Cui Profile

Xiaolong Cui

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Proceedings Article | 19 November 2007 Paper

How does the all-IP application change the fundamentals of the transport networks and product architecture?

Jin-Yi Pan, Enhui Jing, Xiaolong Cui

Proceedings Volume 6784, 678404 (2007) https://doi.org/10.1117/12.751915

KEYWORDS: Time division multiplexing, Network architectures, Data modeling, Switches, Switching, Chemical elements, Broadband telecommunications, Reliability, Data conversion, Video

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Initially deployed for voice service, Sonet/SDH has played a major role in today's service provider networks. In the past 10 years, the next generation SDH has become a robust platform solution to transport voice, video, and data. However, with the fundamental technology yet based on TDM, existing equipment architectures can not scale sufficiently to meet the tremendous data demands in future. Furthermore, as the number of network nodes increases, provisioning and managing these network nodes is becoming increasingly complicated. The evolution of optical transport networks poses challenges to service providers on how to support existing TDM services, while addressing the rapid growth of data services, such as triple play and Ethernet virtual private networks (VPNs), etc. To remain competence, carriers are looking for ways to cut Capex and Opex while delivering new revenue generating and profitable services.At the same time, this evolution is a challenge to equipment suppliers as well. Transport tend to integrate TDM and packet services seamlessly, which enables network element to deliver carrier-class, standardized and packet optimized services. In this paper, three technical solutions for transport node will be introduced, and their cost, functions, advantages and disadvantages will be compared as well.

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