A new Request for Comments is now available in online RFC libraries.
RFC 7198
Title: Duplicating RTP Streams
Author: A. Begen, C. Perkins
Status: Standards Track
Stream: IETF
Date: April 2014
Mailbox: abegen@cisco.com,
csp@csperkins.org
Pages: 13
Characters: 29317
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-avtext-rtp-duplication-06.txt
URL: http://www.rfc-editor.org/rfc/rfc7198.txt
Packet loss is undesirable for real-time multimedia sessions but can
occur due to a variety of reasons including unplanned network
outages. In unicast transmissions, recovering from such an outage
can be difficult depending on the outage duration, due to the
potentially large number of missing packets. In multicast
transmissions, recovery is even more challenging as many receivers
could be impacted by the outage. For this challenge, one solution
that does not incur unbounded delay is to duplicate the packets and
send them in separate redundant streams, provided that the underlying
network satisfies certain requirements. This document explains how
Real-time Transport Protocol (RTP) streams can be duplicated without
breaking RTP or RTP Control Protocol (RTCP) rules.
This document is a product of the Audio/Video Transport Extensions Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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