--- 1/draft-ietf-rmcat-eval-test-03.txt 2016-10-26 14:15:58.067122433 -0700 +++ 2/draft-ietf-rmcat-eval-test-04.txt 2016-10-26 14:15:58.127123927 -0700 @@ -1,22 +1,22 @@ Network Working Group Z. Sarker Internet-Draft Ericsson AB Intended status: Informational V. Singh -Expires: September 9, 2016 callstats.io +Expires: April 29, 2017 callstats.io X. Zhu M. Ramalho Cisco Systems - March 08, 2016 + October 26, 2016 Test Cases for Evaluating RMCAT Proposals - draft-ietf-rmcat-eval-test-03 + draft-ietf-rmcat-eval-test-04 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. This document describes the test cases to be used in the performance evaluation of such congestion control algorithms. Status of This Memo @@ -27,21 +27,21 @@ 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 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 September 9, 2016. + This Internet-Draft will expire on April 29, 2017. Copyright Notice Copyright (c) 2016 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 @@ -68,22 +68,22 @@ Algorithm . . . . . . . . . . . . . . . . . . . . . . . . 17 5.5. Round Trip Time Fairness . . . . . . . . . . . . . . . . 19 5.6. Media Flow Competing with a Long TCP Flow . . . . . . . . 21 5.7. Media Flow Competing with Short TCP Flows . . . . . . . . 23 5.8. Media Pause and Resume . . . . . . . . . . . . . . . . . 25 6. Other potential test cases . . . . . . . . . . . . . . . . . 27 6.1. Media Flows with Priority . . . . . . . . . . . . . . . . 27 6.2. Explicit Congestion Notification Usage . . . . . . . . . 27 6.3. Multiple Bottlenecks . . . . . . . . . . . . . . . . . . 27 7. Wireless Access Links . . . . . . . . . . . . . . . . . . . . 29 - 8. Security Considerations . . . . . . . . . . . . . . . . . . . 30 - 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 30 + 8. Security Considerations . . . . . . . . . . . . . . . . . . . 29 + 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 29 10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 30 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 30 11.1. Normative References . . . . . . . . . . . . . . . . . . 30 11.2. Informative References . . . . . . . . . . . . . . . . . 31 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 31 1. Introduction This memo describes a set of test cases for evaluating congestion control algorithm proposals for real-time interactive media. It is @@ -1123,35 +1123,29 @@ + Number and Types of sources : ten (10), short-lived TCP flows. + Traffic direction : forward + Congestion algorithm: default TCP Congestion control [RFC5681]. + Traffic timeline: each short TCP flow is modeled as a sequence of file downloads interleaved with idle periods. - See test specific setup. Not all short TCP flows start at - the same time, 2 of them start in the ON state while rest on - the 8 flows start in an OFF stats. The model for the idle - times for the OFF state is discussed in - [I-D.ietf-rmcat-eval-criteria]. + Not all short TCP flows start at the same time, 2 of them + start in the ON state while rest of the 8 flows start in an + OFF stats. For description of short TCP flow model see test + specific information below. o Test Specific Information: - * Short-TCP traffic model: - - + File sizes: uniform distribution between 100KB to 1MB - - + Idle period: the duration of the OFF state is derived from - an exponential distribution with the mean value of 10 - seconds. + * Short-TCP traffic model: The short TCP model to be used in this + test is described in [I-D.ietf-rmcat-eval-criteria]. 5.8. Media Pause and Resume In this test case, more than one real-time interactive media flows share the link bandwidth and all flows reach to a steady state by utilizing the link capacity in an optimum way. At this stage one of the media flows is paused for a moment. This event will result in more available bandwidth for the rest of the flows as they are on a shared link. When the paused media flow resumes it would no longer have the same bandwidth share on the link. It has to make it's way @@ -1394,34 +1388,34 @@ Protocol (RTCP)-Based Feedback (RTP/AVPF)", RFC 4585, DOI 10.17487/RFC4585, July 2006, . [RFC5506] Johansson, I. and M. Westerlund, "Support for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and Consequences", RFC 5506, DOI 10.17487/RFC5506, April 2009, . [I-D.ietf-rmcat-eval-criteria] - Singh, V. and J. Ott, "Evaluating Congestion Control for - Interactive Real-time Media", draft-ietf-rmcat-eval- - criteria-04 (work in progress), October 2015. + Singh, V., Ott, J., and S. Holmer, "Evaluating Congestion + Control for Interactive Real-time Media", draft-ietf- + rmcat-eval-criteria-06 (work in progress), September 2016. [I-D.ietf-rmcat-wireless-tests] Sarker, Z., Johansson, I., Zhu, X., Fu, J., Tan, W., and M. Ramalho, "Evaluation Test Cases for Interactive Real- Time Media over Wireless Networks", draft-ietf-rmcat- - wireless-tests-01 (work in progress), November 2015. + wireless-tests-02 (work in progress), May 2016. [I-D.ietf-rmcat-video-traffic-model] Zhu, X., Cruz, S., and Z. Sarker, "Modeling Video Traffic Sources for RMCAT Evaluations", draft-ietf-rmcat-video- - traffic-model-00 (work in progress), January 2016. + traffic-model-01 (work in progress), July 2016. 11.2. Informative References [RFC5681] Allman, M., Paxson, V., and E. Blanton, "TCP Congestion Control", RFC 5681, DOI 10.17487/RFC5681, September 2009, . [I-D.ietf-rmcat-cc-requirements] Jesup, R. and Z. Sarker, "Congestion Control Requirements for Interactive Real-Time Media", draft-ietf-rmcat-cc-