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Title: Hop-by-hop computing for green Internet routing
Authors: Yang, Y
Wang, D 
Xu, M
Li, S
Keywords: Internet
Energy conservation
Energy consumption
Green computing
Quality of service
Telecommunication links
Telecommunication network routing
Telecommunication network topology
Telecommunication traffic
Issue Date: 2013
Publisher: IEEE
Source: 2013 21st IEEE International Conference on Network Protocols (ICNP), 7-10 October 2013, Goettingen, p. 1-10 How to cite?
Abstract: In this paper we study energy conservation in the Internet. We observe that different traffic volumes on a link can result in different energy consumption; this is mainly due to such technologies as trunking (IEEE 802.1AX), adaptive link rates, etc. We design a green Internet routing scheme, where the routing can lead traffic in a way that is green. We differ from previous studies where they switch network components, such as line cards and routers, into sleep mode. We do not prune the Internet topology. We first develop a power model, and validate it using real commercial routers. Instead of developing a centralized optimization algorithm, which requires additional protocols such as MPLS to materialize in the Internet, we choose a hop-by-hop approach. It is thus much easier to integrate our scheme into the current Internet. We progressively develop three algorithms, which are loop-free, maximize energy conservation, and jointly consider green and QoS requirements such as path stretch. We comprehensively evaluate our algorithms through simulations on synthetic and real topologies and traffic traces. We show that the power saving in the line cards can be as much as 50%.
DOI: 10.1109/ICNP.2013.6733606
Appears in Collections:Conference Paper

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