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Status:

PROPOSED STANDARD

Authors:

H. Kaplan, Ed.
K. Hedayat
N. Venna
P. Jones
N. Stratton

Stream:

IETF

Source:

mmusic (rai)

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DOI:  https://doi.org/10.17487/RFC6849

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Abstract

The wide deployment of Voice over IP (VoIP), real-time text, and Video over IPservices has introduced new challenges in managing and maintainingreal-time voice/text/video quality, reliability, and overallperformance. In particular, media delivery is an area that needsattention. One method of meeting these challenges is monitoringthe media delivery performance by looping media back to thetransmitter. This is typically referred to as "active monitoring"of services. Media loopback is especially popular in ensuring thequality of transport to the edge of a given VoIP, real-time text, orVideo over IP service. Today, in networks that deliver real-timemedia, short of running 'ping' and 'traceroute' to the edge,administrators are left without the necessary tools to activelymonitor, 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 mediasessions where the media is looped back to the transmitter. Suchmedia sessions will serve as monitoring and troubleshooting toolsby providing the means for measurement of more advanced VoIP,real-time text, and Video over IP performance metrics.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.