Inter-domain SLA Exchange
draft-ietf-idr-sla-exchange-04

The information below is for an old version of the document
Document Type Active Internet-Draft (idr WG)
Authors Shitanshu Shah  , Keyur Patel  , Sandeep Bajaj  , Luis Tomotaki  , Mohamed Boucadair 
Last updated 2015-03-02 (latest revision 2014-10-26)
Replaces draft-svshah-interdomain-sla-exchange
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state In WG Last Call
Document shepherd Susan Hares
IESG IESG state I-D Exists
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Send notices to "Susan Hares" <skh@ndzh.com>
Network Working Group                                            S. Shah
Internet-Draft                                                  K. Patel
Intended status: Standards Track                           Cisco Systems
Expires: April 29, 2015                                         S. Bajaj
                                                        Juniper Networks
                                                             L. Tomotaki
                                                                 Verizon
                                                            M. Boucadair
                                                          France Telecom
                                                            Oct 26, 2014

                       Inter-domain SLA Exchange
                     draft-ietf-idr-sla-exchange-04

Abstract

   Network administrators typically enforce Quality of Service (QoS)
   policies according to Service Level Agreement (SLA) with their
   providers.  The enforcement of such policies often relies upon
   vendor-specific configuration language.  Both learning of SLA, either
   thru SLA documents or via some other out-of-band method, and
   translating them to vendor specific configuration language is a
   complex, many times manual, process and prone to errors.  This
   document proposes an in-band method of SLA signaling which can help
   to simplify some of the complexities.

   This document defines an optional transitive attribute to signal SLA
   details in-band, across administrative boundaries (considered as
   Autonomous Systems (AS)), thus simplifying and facilitating some of
   the complex provisioning tasks.

   Though the use case with the proposed BGP attribute is explicitly
   defined in this document, purpose of this attribute is not limited to
   this use case only.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://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

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   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 April 29, 2015.

Copyright Notice

   Copyright (c) 2014 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
   (http://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.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  QoS Attribute Definition . . . . . . . . . . . . . . . . . . .  5
     3.1.  SLA, QoS attribute sub-type, Definition  . . . . . . . . .  6
   4.  Originating SLA Notification . . . . . . . . . . . . . . . . . 16
     4.1.  SLA Contexts . . . . . . . . . . . . . . . . . . . . . . . 16
       4.1.1.  SLA Advertisement for Point-to-Point Connection  . . . 16
       4.1.2.  SLA Advertisement for Destination AS Multiple Hops
               Away . . . . . . . . . . . . . . . . . . . . . . . . . 17
   5.  SLA Attribute Handling at Forwarding Nodes . . . . . . . . . . 17
     5.1.  BGP Node Capable of Processing QoS Attribute . . . . . . . 17
     5.2.  BGP Node not Capable of Processing QoS Attribute . . . . . 18
     5.3.  Aggregator . . . . . . . . . . . . . . . . . . . . . . . . 18
   6.  SLA Attribute Handling at Receiver . . . . . . . . . . . . . . 18
     6.1.  Traffic Class Mapping  . . . . . . . . . . . . . . . . . . 19
   7.  Deployment Considerations  . . . . . . . . . . . . . . . . . . 20
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 21
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 21
   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 22
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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