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Energy efficient design for multi-shelf IP over WDM networks

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5 Author(s)
Lei Wang ; National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, China ; Rui Lu ; Qingshan Li ; Xiaoping Zheng
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The explosive growth of Internet drives the development of high performance router. Applying distributed architecture, today's multi-shelf IP core router can provide flexible switch capacity from 1Tbps to 100Tbps. However, the more capacities it has, the more power it consumes, which is becoming a key barrier for bandwidth scaling. This paper studies the energy awareness in design of multi-shelf IP over WDM networks. we analyze the power consumption of different components in multi-shelf IP over WDM networks, including multi-shelf IP core router, ROADM and WDM line system, to deduce the power estimation model. Then, targeting at power minimization, a 2-step MILP design model is proposed, which provides sufficient design details for implementation. Simulation results indicate that, our design approach can minimize the number of both line-cards and router chassis, so performs far better than traditional hop by hop approach in energy saving.

Published in:

Computer Communications Workshops (INFOCOM WKSHPS), 2011 IEEE Conference on

Date of Conference:

10-15 April 2011