Inter-domain SLA Exchange
draft-ietf-idr-sla-exchange-01

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 2013-06-27
Replaces draft-svshah-interdomain-sla-exchange
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Network Working Group                                            S. Shah
Internet-Draft                                                  K. Patel
Intended status: Standards Track                           Cisco Systems
Expires: December 29, 2013                                      S. Bajaj
                                                        Juniper Networks
                                                             L. Tomotaki
                                                                 Verizon
                                                            M. Boucadair
                                                          France Telecom
                                                            Jun 27, 2013

                       Inter-domain SLA Exchange
                     draft-ietf-idr-sla-exchange-01

Abstract

   Network administrators typically provision QoS (Quality of Service)
   policies for their application traffic (such as voice, video) based
   on SLAs (Service Level Agreements) negotiated with their providers,
   and translate those SLAs to 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 operational transitive attribute to signal
   SLA details in-band, across administrative boundaries (considered as
   Autonomous Systems (AS)), thus simplify and speed-up some of the
   complex provisioning tasks.

   Though the use case with the proposed 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 December 29, 2013.

Copyright Notice

   Copyright (c) 2013 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  . . . . . . . . . . . . . . . . . . . . . . . . .  6
   3.  QoS Attribute Definition . . . . . . . . . . . . . . . . . . .  6
     3.1.  SLA, QoS attribute sub-type, Definition  . . . . . . . . .  7
   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  . . . . . . . . . . . . . . . . . . . . . 22
   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 22
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