Test Cases for Evaluating RMCAT Proposals
draft-ietf-rmcat-eval-test-02

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Last updated 2015-09-08
Replaces draft-sarker-rmcat-eval-test
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Network Working Group                                          Z. Sarker
Internet-Draft                                               Ericsson AB
Intended status: Informational                                  V. Singh
Expires: March 11, 2016                                 Aalto University
                                                                  X. Zhu
                                                              M. Ramalho
                                                           Cisco Systems
                                                       September 8, 2015

               Test Cases for Evaluating RMCAT Proposals
                     draft-ietf-rmcat-eval-test-02

Abstract

   The Real-time Transport Protocol (RTP) is used to transmit media in
   multimedia telephony applications, these applications are typically
   required to implement congestion control.  The RMCAT working group is
   currently working on candidate algorithms for such interactive real-
   time multimedia applications.  This document describes the test cases
   to be used in the performance evaluation of those candidate
   algorithms.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on March 11, 2016.

Copyright Notice

   Copyright (c) 2015 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

Sarker, et al.           Expires March 11, 2016                 [Page 1]
Internet-Draft          Test Scenarios for RMCAT          September 2015

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Structure of Test cases . . . . . . . . . . . . . . . . . . .   3
   4.  Recommended Evaluation Settings . . . . . . . . . . . . . . .   7
     4.1.  Evaluation metircs  . . . . . . . . . . . . . . . . . . .   7
     4.2.  Path characteristics  . . . . . . . . . . . . . . . . . .   8
     4.3.  Media source  . . . . . . . . . . . . . . . . . . . . . .   9
   5.  Basic Test Cases  . . . . . . . . . . . . . . . . . . . . . .  10
     5.1.  Variable Available Capacity with Single RMCAT flow  . . .  10
     5.2.  Variable Available Capacity with Multiple RMCAT flows . .  13
     5.3.  Congested Feedback Link with Bi-directional RMCAT flows .  14
     5.4.  Competing Flows with Same RMCAT Algorithm . . . . . . . .  16
     5.5.  Round Trip Time Fairness  . . . . . . . . . . . . . . . .  19
     5.6.  RMCAT Flow competing with a long TCP Flow . . . . . . . .  20
     5.7.  RMCAT Flow competing with short TCP Flows . . . . . . . .  23
     5.8.  Media Pause and Resume  . . . . . . . . . . . . . . . . .  25
   6.  Other potential test cases  . . . . . . . . . . . . . . . . .  26
     6.1.  Explicit Congestion Notification Usage  . . . . . . . . .  26
     6.2.  Multiple Bottlenecks  . . . . . . . . . . . . . . . . . .  26
   7.  Wireless Access Links . . . . . . . . . . . . . . . . . . . .  29
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  29
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  29
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  29
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  29
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  29
     11.2.  Informative References . . . . . . . . . . . . . . . . .  30
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  30

1.  Introduction

   This memo describes a set of test cases for evaluating candidate
   RMCAT congestion control algorithm proposals, it is based on the
   guidelines enumerated in [I-D.ietf-rmcat-eval-criteria] and the
   requirements discussed in [I-D.ietf-rmcat-cc-requirements].  The test
   cases cover basic usage scenarios and are described using a common
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