Inter-domain Traffic Conditioning Agreement (TCA) Exchange Attribute
draft-ietf-idr-sla-exchange-13

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IDR                                                              S. Shah
Internet-Draft
Intended status: Standards Track                                K. Patel
Expires: August 2, 2018                                      Arrcus, Inc
                                                                S. Bajaj
                                                                 Viptela
                                                             L. Tomotaki
                                                                 Verizon
                                                            M. Boucadair
                                                                  Orange
                                                        January 29, 2018

  Inter-domain Traffic Conditioning Agreement (TCA) Exchange Attribute
                   draft-ietf-idr-sla-exchange-13.txt

Abstract

   Network administrators typically enforce Quality of Service (QoS)
   policies according to Traffic Conditioning Agreement (TCA) with their
   providers.  The enforcement of such policies often relies upon
   vendor-specific configuration language.  Both learning of TCA, either
   thru TCA documents or via some other out-of-band method, and
   translating them to vendor specific configuration language is a
   complex, often manual, process and prone to errors.

   This document specifies an optional transitive attribute to signal
   TCA parameters in-band, across administrative boundaries (considered
   as Autonomous Systems (AS)), thus simplifying and facilitating some
   of the complex provisioning tasks in situations where BGP is
   available as a routing protocol.

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 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 August 2, 2018.

Shah, et al.             Expires August 2, 2018                 [Page 1]
Internet-Draft          Inter-domain TCA Exchange           January 2018

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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  QoS Attribute Definition  . . . . . . . . . . . . . . . . . .   5
     3.1.  QoS Attribute SubType . . . . . . . . . . . . . . . . . .   6
     3.2.  TCA SubType . . . . . . . . . . . . . . . . . . . . . . .   7
     3.3.  TCA Content for ADVERTISE TCA Event . . . . . . . . . . .   9
       3.3.1.  Supported IPFIX identifiers for Traffic Class
               Elements  . . . . . . . . . . . . . . . . . . . . . .  12
       3.3.2.  Traffic Class Service types and respective TLVs . . .  15
   4.  Originating TCA Notification  . . . . . . . . . . . . . . . .  22
     4.1.  TCA Contexts  . . . . . . . . . . . . . . . . . . . . . .  23
       4.1.1.  TCA Advertisement for Point-to-Point Connection . . .  23
       4.1.2.  TCA Advertisement for Destination AS Multiple Hops
               Away  . . . . . . . . . . . . . . . . . . . . . . . .  24
   5.  QoS Attribute Handling at Forwarding Nodes  . . . . . . . . .  24
     5.1.  BGP Node Capable of Processing QoS Attribute  . . . . . .  24
     5.2.  QoS Attribute Handling at Receiver  . . . . . . . . . . .  25
   6.  Error Handling  . . . . . . . . . . . . . . . . . . . . . . .  25
   7.  Deployment Considerations . . . . . . . . . . . . . . . . . .  25
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  27
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  28
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  29
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  29
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  29
     11.2.  Informative References . . . . . . . . . . . . . . . . .  30