Test Cases for Evaluating RMCAT Proposals
draft-sarker-rmcat-eval-test-00

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Network Working Group                                          Z. Sarker
Internet-Draft                                               Ericsson AB
Intended status: Informational                                  V. Singh
Expires: August 18, 2014                                Aalto University
                                                                  X. Zhu
                                                           M. A. Ramalho
                                                           Cisco Systems
                                                       February 14, 2014

               Test Cases for Evaluating RMCAT Proposals
                    draft-sarker-rmcat-eval-test-00

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 evaluation of the performance of those candidate
   algorithms.

Status of This Memo

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   This Internet-Draft will expire on August 18, 2014.

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   Copyright (c) 2014 IETF Trust and the persons identified as the
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   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of

Sarker, et al.          Expires August 18, 2014                 [Page 1]
Internet-Draft          Test Scenarios for RMCAT           February 2014

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Basic Structure of Test cases . . . . . . . . . . . . . . . .   3
   4.  Basic Test Cases  . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Variable Available Capacity . . . . . . . . . . . . . . .   7
     4.2.  Maximum Media Bit Rate is Greater than Link Capacity  . .  10
     4.3.  Competing Flows with same RMCAT Algorithm . . . . . . . .  13
     4.4.  RMCAT Flow competing with a long TCP Flow . . . . . . . .  16
     4.5.  RMCAT Flow competing with short TCP Flows . . . . . . . .  19
     4.6.  Congested Feedback Link . . . . . . . . . . . . . . . . .  22
     4.7.  Round Trip Time Fairness  . . . . . . . . . . . . . . . .  27
     4.8.  Media Pause and Resume  . . . . . . . . . . . . . . . . .  29
     4.9.  Explicit Congestion Notification Usage  . . . . . . . . .  31
   5.  Wireless Access Links . . . . . . . . . . . . . . . . . . . .  31
     5.1.  Cellular Network Specific Test Cases  . . . . . . . . . .  31
     5.2.  Wi-Fi Network Specific Test Cases . . . . . . . . . . . .  31
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  31
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  31
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  31
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  32
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  32
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  33
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  33

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
   requirements discussed in [I-D.ietf-rmcat-cc-requirements].  The test
   cases cover basic usage scenarios and are described using a common
   structure, which allows for additional test cases to be added to
   those described herein to accommodate other topologies and/or the
   modeling of different link characteristics.  Each test case
   incorporates the metrics, evaluation guidelines and parameters
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