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-03.txt
Pages : 24
Date : 2012-08-06
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-03
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-mjsraman-rtgwg-inter-as-psp-03
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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