I-D Action: draft-mjsraman-rtgwg-inter-as-psp-05.txt
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Subject: I-D Action: draft-mjsraman-rtgwg-inter-as-psp-05.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Reducing Power Consumption using BGP Author(s) : Shankar Raman Balaji Venkat Venkataswami Gaurav Raina Filename : draft-mjsraman-rtgwg-inter-as-psp-05.txt Pages : 25 Date : 2013-01-29 Abstract: In this paper, we propose a framework to reduce the aggregate power consumption of the Internet using a collaborative approach between Autonomous Systems (AS). We identify the low-power paths among the AS and then use Traffic Engineering (TE) techniques to route the packets along the paths. Such low-power paths can be identified by using the consumed-power-to-available-bandwidth (PWR) ratio as an additional constraint in the Constrained Shortest Path First (CSPF) algorithm. For re-routing the data traffic through these low-power paths, the Inter-AS Traffic Engineered Label Switched Path (TE-LSP) that spans multiple AS can be used. Extensions to the Border Gateway Protocol (BGP) can be used to disseminate the PWR ratio metric among the AS thereby creating a collaborative approach to reduce the power consumption. Since calculating the low-power paths can be computationally intensive, a graph-labeling heuristic is also proposed. This heuristic reduces the computational complexity but may provide a sub-optimal low-power path. The feasibility of our approaches is illustrated by applying our algorithm to a subset of the Internet. The techniques proposed in this paper for the Inter-AS power reduction require minimal modifications to the existing features of the Internet. The proposed techniques can be extended to other levels of Internet hierarchy, such as Intra-AS paths, through suitable modifications. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-mjsraman-rtgwg-inter-as-psp There's also a htmlized version available at: http://tools.ietf.org/html/draft-mjsraman-rtgwg-inter-as-psp-05 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-mjsraman-rtgwg-inter-as-psp-05 Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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