Dear all. We are a bunch of researchers from the IIT (indian Institute of Technology) Madras (chennai) on the east coast of india. We are submitting research work that has been done on the subject of greening the internet. We have published the following documents (series of documents) of how to reduce the overall power consumption in the internet in an inter-AS and an intra-AS scenario. We would like to get the comments from the members of this esteemed group with regard to these documents.
We submit two drafts that have been made part of the rtgwg working group in the ietf. These two drafts deal with inter-AS scenarios where a collaborative approach among the Ases is sought to be achieved to reduce the power consumption in the internet. We are new to the IETF and the IRTF as well. So please let us know if we have to re-submit these documents to the IRTF. We would very much welcome your comments on these documents. Thanks and regards, Balaji venkat The first document is as follows. 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 The second document is as follows. A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Reducing Power Consumption using BGP path selection Author(s) : Shankar Raman Balaji Venkat Venkataswami Gaurav Raina Vasan Srini Filename : draft-mjsraman-rtgwg-bgp-power-path-02.txt Pages : 19 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 suitable modifications to the BGP path selection algorithm 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 parameter in the BGP Path Selection Algorithm. For re-routing the data traffic through these low-power paths, the power based best path is selected and advertised as per the modified algorithm proposed in this document. 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. 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-bgp-power-path There's also a htmlized version available at: http://tools.ietf.org/html/draft-mjsraman-rtgwg-bgp-power-path-02 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-mjsraman-rtgwg-bgp-power-path-02
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