Pseudo Content Delivery Protocol (CDP) for Protecting Multiple Source Flows in the Forward Error Correction (FEC) Framework
RFC 6801
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Type |
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RFC - Informational
(November 2012; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-kozat-fecframe-pseudo-cdp
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Stream |
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IETF
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plain text
pdf
html
bibtex
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WG state
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WG Document
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Document shepherd |
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No shepherd assigned
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| IESG |
IESG state |
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RFC 6801 (Informational)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Martin Stiemerling
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IESG note |
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Greg Shepherd (gjshep@gmail.com) is the document shepherd
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Send notices to |
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(None)
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Internet Engineering Task Force (IETF) U. Kozat
Request for Comments: 6801 DOCOMO Innovations
Category: Informational A. Begen
ISSN: 2070-1721 Cisco
November 2012
Pseudo Content Delivery Protocol (CDP) for
Protecting Multiple Source Flows in the
Forward Error Correction (FEC) Framework
Abstract
This document provides a pseudo Content Delivery Protocol (CDP) to
protect multiple source flows with one or more repair flows based on
the Forward Error Correction (FEC) Framework and the Session
Description Protocol (SDP) elements defined for the framework. The
purpose of the document is not to provide a full-fledged protocol but
to show how the defined framework and SDP elements can be combined
together to implement a CDP.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see 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/rfc6801.
Kozat & Begen Informational [Page 1]
RFC 6801 Pseudo CDP for Multiple Source Flows November 2012
Copyright Notice
Copyright (c) 2012 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.
Table of Contents
1. Introduction ....................................................3
2. Definitions/Abbreviations .......................................3
3. Construction of a Repair Flow from Multiple Source Flows ........3
3.1. Example: Two Source Flows Protected by a Single
Repair Flow ................................................6
4. Reconstruction of Source Flows from Repair Flow(s) ..............9
4.1. Example: Multiple Source Flows Protected by a
Single Repair Flow .........................................9
5. Security Considerations ........................................10
6. Acknowledgments ................................................10
7. Normative References ...........................................11
Kozat & Begen Informational [Page 2]
RFC 6801 Pseudo CDP for Multiple Source Flows November 2012
1. Introduction
The Forward Error Correction (FEC) Framework (described in [RFC6363])
and SDP Elements for FEC Framework (described in [RFC6364]) together
define mechanisms sufficient enough to build an actual Content
Delivery Protocol (CDP) with FEC protection. Methods to convey FEC
Framework Configuration Information (described in [RFC6695]), on the
other hand, provide the signaling protocols that may be used as part
of CDP to communicate FEC-Scheme-Specific Information from FEC sender
to a single as well as multiple FEC receivers. This document
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