On Traffic Grooming Choices for IP over WDM networks

Date
2006-01-01
Authors
Balasubramanian, Srivatsan
Somani, Arun
Somani, Arun
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Journal Issue
Series
Department
Electrical and Computer Engineering
Abstract

Traffic grooming continues to be a rich area of research in the context of WDM optical networks. We provide an overview of the optical and electronic grooming techniques available with focus on IP as the client layer. We discuss the various architectural alternatives available: peer, overlay and augmented models. We first provide a survey on the research work in the area of traffic grooming in optical circuit switched networks. We then identify problems with electronic grooming in terms of high speed router design and bring out the merits of optical grooming. Next, we describe the shared wavelength optical network technology called light-trails and compare its performance with electronic grooming networks for both the peer and overlay models. Based on our simulations on random graphs of various diameters, we identify the threshold router speeds at which light-trails can compete with the electronic grooming solution for a given network scenario. We conclude that since the present router capacities are below the threshold speed or such routers are likely to remain expensive for some time, light-trails is an appealing candidate solution.

Comments

This is a manuscript of a proceeding published as Balasubramanian, Srivatsan, and Arun K. Somani. "On traffic grooming choices for IP over WDM networks." In 2006 3rd International Conference on Broadband Communications, Networks and Systems, (2006). DOI: 10.1109/BROADNETS.2006.4374410. Posted with permission.

Description
Keywords
Citation
DOI