From balajivenkat299@gmail.com Thu Aug 16 09:29:09 2012 Return-Path: X-Original-To: rrg@ietfa.amsl.com Delivered-To: rrg@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 089AF21F8471 for ; Thu, 16 Aug 2012 09:29:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.351 X-Spam-Level: X-Spam-Status: No, score=-2.351 tagged_above=-999 required=5 tests=[AWL=-0.948, BAYES_00=-2.599, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_LOW=-1, SARE_SUB_RAND_LETTRS4=0.799] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cQsdKysJNnec for ; Thu, 16 Aug 2012 09:29:08 -0700 (PDT) Received: from mail-yx0-f182.google.com (mail-yx0-f182.google.com [209.85.213.182]) by ietfa.amsl.com (Postfix) with ESMTP id E518E21F847D for ; Thu, 16 Aug 2012 09:29:03 -0700 (PDT) Received: by yenl7 with SMTP id l7so3808227yen.13 for ; Thu, 16 Aug 2012 09:29:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:date:subject:from:to:cc:message-id:thread-topic :mime-version:content-type; bh=bV/BKFGdpnV09SWIYf3x9aqVl5/xcHQejmjlCk5IZ7g=; b=xuthg7Rsr3PcbknEpwV8cpCCO/Onl/XXV9H3IVijZ1h2n2bmNmn5N5yMFmxkMRIb9S HAS0TNFFcbH6/DlCoN7RjF4IRNgV+TR3f0XE9W8nlANgbkYxD0aRCEkayTyXr9D5Lcss idaggX6TW+OnFUqE96oNnnsikbFPtFL/T1XJjUJ/SCtd/dW3+MXGxn/1qkew4NHqOf4H 96bX57bMGq9egeyPl74mUxXH6BC4UvMaU88CDb9ZJ67HMsVSA/pnnyWzIhiFy8Ftn5U5 0mNTHPdZmeHzWqKDB30Eg8Va5uNCY3Ml+D5zp94NwAvlKq6C0QdXwjHtKmt5iH008rEQ e20A== Received: by 10.68.237.74 with SMTP id va10mr4451735pbc.46.1345134542841; Thu, 16 Aug 2012 09:29:02 -0700 (PDT) Received: from [192.168.15.105] ([122.164.65.141]) by mx.google.com with ESMTPS id qn3sm2976605pbc.6.2012.08.16.09.28.58 (version=SSLv3 cipher=OTHER); Thu, 16 Aug 2012 09:29:02 -0700 (PDT) User-Agent: Microsoft-MacOutlook/14.10.0.110310 Date: Thu, 16 Aug 2012 21:58:52 +0530 From: balaji venkat Venkataswami To: Message-ID: Thread-Topic: For the kind consideration of the RRG IRTF working group Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3427999141_156451" Cc: Shankar Raman , Gaurav Raina Subject: [rrg] For the kind consideration of the RRG IRTF working group X-BeenThere: rrg@irtf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: IRTF Routing Research Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Aug 2012 16:29:09 -0000 > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3427999141_156451 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit 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 --B_3427999141_156451 Content-type: text/html; charset="US-ASCII" Content-transfer-encoding: quoted-printable
Dear all.

We are a bunch of researchers from the IIT (indian Institute of= Technology)
Ma= dras (chennai) on the east coast of india. We are submitting research work
that has been do= ne on the subject of greening the internet. We have
published the following documents (seri= es 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
esteem= ed group with regard to these documents.

We submit two drafts that have been made part of the rtgwg w= orking group in
the ietf. These two drafts deal with inter-AS scenarios where a
collaborative approach amo= ng 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 docume= nt is as follows.

A New Internet-Draft is available from the on-line In= ternet-Drafts directories.

Title  &nb= sp;        : Reducing Power Consumption u= sing BGP
Author(s) &nb= sp;     : Shankar Raman
        = ;            &nb= sp;     Balaji Venkat Venkataswami
     &= nbsp;            = ;        Gaurav Raina
Filename     &nb= sp;  : draft-mjsraman-rtgwg-inter-as-psp-03.txt
Pages      &nbs= p;    : 24
D= ate            := 2012-08-06
Abstract:
   In th= is paper, we propose a framework to reduce the aggregate power
   consumption of = the Internet using a collaborative approach between
   Autonomous Systems (AS). W= e 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 a= s an additional
   constraint in the Constrained Shortest Path First (CSPF) algor= ithm.
 &nb= sp; For re-routing the data traffic through these low-power paths, the
=
   Inter-A= S Traffic Engineered Label Switched Path (TE-LSP) that spans
   multiple AS can b= e used. Extensions to the Border Gateway Protocol
   (BGP) can be used to dissemi= nate the PWR ratio metric among the AS
   thereby creating a collaborative approa= ch 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 l= ow-power path. The feasibility of our
   approaches is illustrated by applying ou= r algorithm to a subset of
   the Internet. The techniques proposed in this paper= for the Inter-AS
   = features of the Internet. The proposed techniques can be extended to
   other lev= els of Internet hierarchy, such as Intra-AS paths, through
   suitable modificati= ons.

=



The IETF datatracker status page for this draft is= :

There's also a htmlized version available = at:

A diff from the previous version is available = at:

The second document is as follows.
A New Internet-Draft is avail= able from the on-line Internet-Drafts directories.


Title           : Redu= cing Power Consumption using BGP path selection
Author(s)       : Shankar= Raman
 &n= bsp;            =             Bala= ji Venkat Venkataswami
           &n= bsp;            =   Gaurav Raina
           =             &nbs= p;  Vasan Srini
F= ilename        : draft-mjsraman-rtgw= g-bgp-power-path-02.txt
Pag= es           : 19
Date     &= nbsp;      : 2012-08-06

Abstract:
   In this paper, we propose a framework t= o reduce the aggregate power
   consumption of the Internet using a collaborative= approach between
 = ;  and then use suitable modifications to the BGP path selection
<= div style=3D"font-family: Consolas; font-size: medium; ">   algorith= m 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 addition= al parameter in the BGP Path Selection
   Algorithm. For re-routing the data traf= fic through these low-power
   paths, the power based best path is selected and a= dvertised as per
 &n= bsp; Border Gateway Protocol (BGP) can be used to disseminate the PWR
<= div style=3D"font-family: Consolas; font-size: medium; ">   ratio me= tric among the AS thereby creating a collaborative approach
   to reduce the powe= r consumption. The feasibility of our approaches is
   illustrated by applying ou= r algorithm to a subset of the Internet.
   The techniques proposed in this paper= for the Inter-AS power
   reduction require minimal modifications to the existin= g features of
&= nbsp;  the Internet. The proposed techniques can be extended to other l= evels
 &nb= sp; of Internet hierarchy, such as Intra-AS paths, through suitable
   modificati= ons.

=



The IETF datatracker status page for this draft is= :

There's also a htmlized version availa= ble at:

A diff from the previous version is av= ailable at:

--B_3427999141_156451--