[altoext] [Fwd: New Version Notification for draft-randriamasy-alto-cost-schedule-01.txt]

Sabine Randriamasy <Sabine.Randriamasy@alcatel-lucent.com> Mon, 16 July 2012 17:38 UTC

Message-ID: <500451BB.7040703@alcatel-lucent.com>
Date: Mon, 16 Jul 2012 19:39:07 +0200
From: Sabine Randriamasy <Sabine.Randriamasy@alcatel-lucent.com>
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Subject: [altoext] [Fwd: New Version Notification for draft-randriamasy-alto-cost-schedule-01.txt]
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Hi all,

We have submitted a new version of
"draft-randriamasy-alto-cost-schedule", that proposes an ALTO protocol
extension to provide cost values in a "schedule" mode. In such a mode, a
cost value is provided as a array of time dependent values, along with
attributes of this array including, number, size begin date of value
time intervals. This information can be used by applications to schedule
their operations at the most favorable time.

In this new version we have updated the section describing the Cost
Scope capability, to clarify it and considering the feedback received
during the last ALTO WG session. Any comments are wellcome.

Thanks,
Sabine

-------- Message original --------
Sujet : New Version Notification for
draft-randriamasy-alto-cost-schedule-01.txt
Date : Mon, 16 Jul 2012 19:23:18 +0200
De : internet-drafts@ietf.org <internet-drafts@ietf.org>
Pour : RANDRIAMASY, SABINE (SABINE)
<sabine.randriamasy@alcatel-lucent.com>
Copie à : Schwan, Nico (Nico) <nico.schwan@alcatel-lucent.com>

A new version of I-D, draft-randriamasy-alto-cost-schedule-01.txt
has been successfully submitted by Sabine Randriamasy and posted to the
IETF repository.

Filename: draft-randriamasy-alto-cost-schedule
Revision: 01
Title: ALTO Cost Schedule
Creation date: 2012-07-16
WG ID: Individual Submission
Number of pages: 14
URL: http://www.ietf.org/internet-drafts/draft-randriamasy-alto-cost-schedule-01.txt
Status: http://datatracker.ietf.org/doc/draft-randriamasy-alto-cost-schedule
Htmlized: http://tools.ietf.org/html/draft-randriamasy-alto-cost-schedule-01
Diff: http://tools.ietf.org/rfcdiff?url2=draft-randriamasy-alto-cost-schedule-01

Abstract:
The goal of Application-Layer Traffic Optimization (ALTO) is to
bridge the gap between network and applications by provisioning
network related information. This allows applications to make
informed decisions, for example when selecting a target host from a
set of candidates. The ALTO problem statement [RFC5693] considers
typical applications as file sharing, real-time communication and
live streaming peer-to-peer networks. Recently other use cases
focused on Content Distribution Networks and Data Centers have
emerged [draft-jenkins-alto-cdn-use-cases-01].

The present draft proposes to extend the cost information provided by
the ALTO protocol. The purpose is to broaden the decision
possibilities of applications to not only decide 'where' to connect
to, but also 'when' to connect. This is useful to applications that
have a degree of freedom on when to schedule data transfers, such as
non-instantaneous data replication between data centers. The draft
therefore specifies a new cost mode, called the "schedule" mode. In
this mode the ALTO server offers cost maps that contain link ratings
that are valid for a given timeframe (e.g. hourly) for a period of
time (e.g. a day). Besides the functional time-shift enhancement
providing multi-timeframe cost values the extansion also allows the
saving of a number of ALTO transactions and thus resources on the
ALTO server and clients.

The IETF Secretariat

[altoext] [Fwd: New Version Notification for draf… Sabine Randriamasy