[xrblock] Liaison Statement to W3C for rtcweb-rtcp-xr-metrics

[Shida Schubert <[e-mail]>]

All;

Below is a draft for liaison statement to W3C for draft-ietf-xrblock-rtcweb-rtcp-xr-metrics. 

Welcoming comments…

*****

W3C,

The XRBLOCK WG in IETF has been working on a draft recommending the type of RTCP XR blocks that would be beneficial for webrtc endpoint, in order to identify any issues regarding media stream(s) and act on to provide better overall user-experience to the end-user. The draft defines a IANA registry with a list of identifiers for the WebRTC's statistics API with a set of RTCP SR, RR, and XR metrics related to the transport of multimedia flows.

http://tools.ietf.org/wg/xrblock/draft-ietf-xrblock-rtcweb-rtcp-xr-metrics.

Gist from the introduction of the draft:  
"The WebRTC Stats API currently lists
 metrics reported in the RTCP Sender and Receiver Report (SR/RR)
 [RFC3550] to fulfill this requirement.  However, the basic metrics
 from RTCP SR/RR are not sufficient for precise quality monitoring, or
 diagnosing potential issues.

 In this document, we provide some guidelines on choosing additional
 RTP metrics for the WebRTC [W3C.WD-webrtc-20150210].  Furthermore, we
 create a registry containing metrics reported in RTCP XR."

Any comments are welcome. 

S. Schubert
Co-chair, XRBLOCK Workgroup