Advanced Unidirectional Route Assessment (AURA)
draft-ietf-ippm-route-02

Document Type Active Internet-Draft (ippm WG)
Last updated 2018-07-02
Replaces draft-morton-ippm-port-twamp-test
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Network Working Group                                 J. Alvarez-Hamelin
Internet-Draft                               Universidad de Buenos Aires
Updates: 2330 (if approved)                                    A. Morton
Intended status: Standards Track                               AT&T Labs
Expires: January 3, 2019                                       J. Fabini
                                                                 TU Wien
                                                            C. Pignataro
                                                     Cisco Systems, Inc.
                                                            July 2, 2018

            Advanced Unidirectional Route Assessment (AURA)
                        draft-ietf-ippm-route-02

Abstract

   This memo introduces an advanced unidirectional route assessment
   (AURA) metric and associated measurement methodology, based on the IP
   Performance Metrics (IPPM) Framework RFC 2330.  This memo updates RFC
   2330 in the areas of path-related terminology and path description,
   primarily to include the possibility of parallel subpaths between a
   given Source and Destination pair, owing to the presence of multi-
   path technologies.

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.

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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   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 January 3, 2019.

Alvarez-Hamelin, et al.  Expires January 3, 2019                [Page 1]
Internet-Draft           AURA Metrics & Methods                July 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Issues with Earlier Work to define Route  . . . . . . . .   3
   2.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Route Metric Terms and Definitions  . . . . . . . . . . . . .   5
     3.1.  Formal Name . . . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Parameters  . . . . . . . . . . . . . . . . . . . . . . .   6
     3.3.  Metric Definitions  . . . . . . . . . . . . . . . . . . .   7
     3.4.  Related Round-Trip Delay and Loss Definitions . . . . . .   8
     3.5.  Discussion  . . . . . . . . . . . . . . . . . . . . . . .   9
     3.6.  Reporting the Metric  . . . . . . . . . . . . . . . . . .   9
   4.  Route Assessment Methodologies  . . . . . . . . . . . . . . .  10
     4.1.  Active Methodologies  . . . . . . . . . . . . . . . . . .  10
       4.1.1.  Temporal Composition for Route Metrics  . . . . . . .  12
       4.1.2.  Routing Class C Identification  . . . . . . . . . . .  13
     4.2.  Hybrid Methodologies  . . . . . . . . . . . . . . . . . .  14
     4.3.  Combining Different Methods . . . . . . . . . . . . . . .  15
   5.  Background on Round-Trip Delay Measurement Goals  . . . . . .  16
   6.  Tools to Measure Delays in the Internet . . . . . . . . . . .  16
   7.  RTD Measurements Statistics . . . . . . . . . . . . . . . . .  18
   8.  Conclusions . . . . . . . . . . . . . . . . . . . . . . . . .  19
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  20
   12. Appendix I MPLS Methods for Route Assessment  . . . . . . . .  20
   13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  21
     13.1.  Normative References . . . . . . . . . . . . . . . . . .  21
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