Enabling Green Networking With a Power Down Approach

Provided by: Montana State University
Topic: Mobility
Format: PDF
The most straightforward way to reduce network power consumption is to turn off idle links and nodes (switches/routers), which the authors call the power down approach. In a wired network, especially in a backbone network, many links are actually "Bundles" of multiple physical cables and line cards that can be shut down independently. In this paper, they study the following routing problem for green networking in wired networks: Given a set of end-to-end communication sessions, determine how to route data traffic through the network such that total power consumption is minimized by turning off unused cables in bundled links and nodes, subject to the constraint that the traffic demand of each session is satisfied.

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