ALTO Cost Calendar
draft-ietf-alto-cost-calendar-09

Document Type Active Internet-Draft (alto WG)
Last updated 2018-11-14 (latest revision 2018-11-13)
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Vijay Gurbani
Shepherd write-up Show (last changed 2018-07-09)
IESG IESG state In Last Call (ends 2018-11-28)
Consensus Boilerplate Yes
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Responsible AD Mirja Kühlewind
Send notices to Vijay Gurbani <vijay.gurbani@nokia.com>
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Network Working Group                                     S. Randriamasy
Internet-Draft                                           Nokia Bell Labs
Intended status: Standards Track                                 R. Yang
Expires: May 17, 2019                                    Yale University
                                                                   Q. Wu
                                                                  Huawei
                                                                 L. Deng
                                                            China Mobile
                                                               N. Schwan
                                                      Thales Deutschland
                                                       November 13, 2018

                           ALTO Cost Calendar
                    draft-ietf-alto-cost-calendar-09

Abstract

   This document is an extension to the base ALTO protocol [RFC7285].
   It extends the ALTO cost information service such that applications
   decide not only 'where' to connect, but also 'when'.  This is useful
   for applications that need to perform bulk data transfer and would
   like to schedule these transfers during an off-peak hour, for
   example.  This extension introduces ALTO Cost Calendars, with which
   an ALTO Server exposes ALTO cost values in JSON arrays where each
   value corresponds to a given time interval.  The time intervals as
   well as other Calendar attributes are specified in the Information
   Resources Directory and ALTO Server responses.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

   When the words appear in lower case, they are to be interpreted with
   their natural language meanings.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute

Randriamasy, et al.       Expires May 17, 2019                  [Page 1]
Internet-Draft             ALTO Cost Calendar              November 2018

   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 17, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Overview of ALTO Cost Calendars . . . . . . . . . . . . . . .   4
     2.1.  ALTO Cost Calendar information features . . . . . . . . .   5
     2.2.  ALTO Calendar design characteristics  . . . . . . . . . .   5
       2.2.1.  ALTO Cost Calendar for all cost modes . . . . . . . .   6
       2.2.2.  Compatibility with legacy ALTO Clients  . . . . . . .   7
   3.  ALTO Calendar specification: IRD extensions . . . . . . . . .   7
     3.1.  Calendar attributes in the IRD resources capabilities . .   7
     3.2.  Calendars in a delegate IRD . . . . . . . . . . . . . . .   9
     3.3.  Example IRD with ALTO Cost Calendars  . . . . . . . . . .   9
   4.  ALTO Calendar specification: Service Information Resources  .  13
     4.1.  Calendar extensions for filtered cost maps  . . . . . . .  13
       4.1.1.  Calendar extensions in Filtered Cost Map requests . .  13
       4.1.2.  Calendar extensions in Filtered Cost Map responses  .  14
       4.1.3.  Use case and example: FCM with a bandwidth Calendar .  16
     4.2.  Calendar extensions in the Endpoint Cost Service  . . . .  18
       4.2.1.  Calendar specific input in  Endpoint Cost requests  .  18
       4.2.2.  Calendar attributes in the Endpoint Cost response . .  18
       4.2.3.  Use case and example: ECS with a routingcost Calendar  19
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