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BGP Extended Community for QoS Marking
draft-knoll-idr-qos-attribute-13

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Last updated: 2014-01-10
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Inter-Domain Routing Working Group                             Th. Knoll
Internet-Draft                         Chemnitz University of Technology
Intended status: Standards Track                        January 11, 2014
Expires: July 15, 2014

                 BGP Extended Community for QoS Marking
                    draft-knoll-idr-qos-attribute-13

Abstract

   This document specifies a simple signalling mechanism for inter-
   domain QoS marking using several instances of a new BGP Extended
   Community.  Class based packet marking and forwarding is currently
   performed independently within ASes.  The new QoS marking community
   makes the targeted Per Hop Behaviour within the IP prefix advertising
   AS and the currently applied marking at the interconnection point
   known to all access and transit ASes.  This enables individual
   (re-)marking and possibly forwarding treatment adaptation to the
   original QoS class setup of the respective originating AS.  The
   extended community provides the means to signal QoS markings on
   different layers, which are linked together in QoS Class Sets.  It
   provides inter-domain and cross-layer insight into the QoS class
   mapping of the source AS with minimal signalling traffic.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
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   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
   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 July 15, 2014.

Knoll                     Expires July 15, 2014                 [Page 1]
Internet-Draft          BGP QoS Marking Community           January 2014

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.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Problem Statement  . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Related Work . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4.  Definition of the QoS Marking Community  . . . . . . . . . . .  7
     4.1.  Extended Community Type  . . . . . . . . . . . . . . . . .  7
     4.2.  Structure of the QoS Marking Community . . . . . . . . . .  7
     4.3.  Technology Type Enumeration  . . . . . . . . . . . . . . . 10
   5.  Community Usage  . . . . . . . . . . . . . . . . . . . . . . . 11
     5.1.  QoS Marking Example  . . . . . . . . . . . . . . . . . . . 12
     5.2.  AS Border Packet Forwarding  . . . . . . . . . . . . . . . 12
     5.3.  IP Prefix Aggregation  . . . . . . . . . . . . . . . . . . 13
   6.  Confidentiality Considerations . . . . . . . . . . . . . . . . 13
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 13
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 14
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 14
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 15
   Appendix A.  QoS Marking Example . . . . . . . . . . . . . . . . . 15
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 17

Knoll                     Expires July 15, 2014                 [Page 2]
Internet-Draft          BGP QoS Marking Community           January 2014

1.  Introduction

   A new BGP Extended Community is defined in this document, which

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