A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Reducing Power Consumption using BGP
Author(s) : Balaji Venkat Venkat
Gaurav Raina
Filename : draft-mjsraman-rtgwg-inter-as-psp-00.txt
Pages : 22
Date : 2012-02-09
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
available power-to-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.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-mjsraman-rtgwg-inter-as-psp-00.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-mjsraman-rtgwg-inter-as-psp-00.txt
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