An Extension to the Session Description Protocol (SDP) and Real-time Transport Protocol (RTP) for Media Loopback
RFC 6849
Document | Type | RFC - Proposed Standard (February 2013; No errata) | |
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Authors | Hadriel Kaplan , Kaynam Hedayat , Nagarjuna Venna , Paul Jones , Nathan Stratton | ||
Last updated | 2015-10-14 | ||
Stream | Internet Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Miguel GarcĂa | ||
Shepherd write-up | Show (last changed 2012-08-08) | ||
IESG | IESG state | RFC 6849 (Proposed Standard) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Gonzalo Camarillo | ||
IESG note | Miguel A. Garcia (miguel.a.garcia@ericsson.com) is the Document Shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) H. Kaplan, Ed. Request for Comments: 6849 Acme Packet Category: Standards Track K. Hedayat ISSN: 2070-1721 EXFO N. Venna Saperix P. Jones Cisco Systems, Inc. N. Stratton BlinkMind, Inc. February 2013 An Extension to the Session Description Protocol (SDP) and Real-time Transport Protocol (RTP) for Media Loopback Abstract The wide deployment of Voice over IP (VoIP), real-time text, and Video over IP services has introduced new challenges in managing and maintaining real-time voice/text/video quality, reliability, and overall performance. In particular, media delivery is an area that needs attention. One method of meeting these challenges is monitoring the media delivery performance by looping media back to the transmitter. This is typically referred to as "active monitoring" of services. Media loopback is especially popular in ensuring the quality of transport to the edge of a given VoIP, real- time text, or Video over IP service. Today, in networks that deliver real-time media, short of running 'ping' and 'traceroute' to the edge, administrators are left without the necessary tools to actively monitor, manage, and diagnose quality issues with their service. The extension defined herein adds new Session Description Protocol (SDP) media types and attributes that enable establishment of media sessions where the media is looped back to the transmitter. Such media sessions will serve as monitoring and troubleshooting tools by providing the means for measurement of more advanced VoIP, real-time text, and Video over IP performance metrics. Kaplan, et al. Standards Track [Page 1] RFC 6849 SDP Media Loopback February 2013 Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6849. Copyright Notice Copyright (c) 2013 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 carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Kaplan, et al. Standards Track [Page 2] RFC 6849 SDP Media Loopback February 2013 Table of Contents 1. Introduction ....................................................3 1.1. Use Cases Supported ........................................4 2. Terminology .....................................................6 3. Overview of Operation ...........................................6 3.1. SDP Offerer Behavior .......................................6 3.2. SDP Answerer Behavior ......................................7Show full document text