A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiparty Multimedia Session Control Working Group of the IETF.
Title : An Extension to the Session Description Protocol (SDP) for Media Loopback
Author(s) : K. Hedayat, et al.
Filename : draft-ietf-mmusic-media-loopback-03.txt
Pages : 17
Date : 2006-6-26
The wide deployment of Voice over IP (VoIP), Real-time Text and
Video over IP services has introduced new challenges in managing
and maintaining voice/real-time 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, service providers are left without the necessary tools
to actively monitor, manage, and diagnose quality issues with their
service. The extension defined herein adds new SDP media
attributes which enables 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.
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