Re: [xrblock] I-D Action: draft-ietf-xrblock-rtcweb-rtcp-xr-metrics-01.txt

Hi all,

The -01 draft incorporates the changes discussed at IETF 91.
- new registry defined for WebRTC Statistics API
- added the SR and RR metrics, which were earlier in
draft-alvestrand-rtcweb-stats-registry
- changed the TitleCased identifiers to camelCase, to keep consistency with
the W3C document.

OPEN ISSUE (burst metrics):
The document currently defines two sets of burst metrics
- Section 6.7: Reports cumulative packets in a burst and the corresponding
burst counts.
- Section 6.8.: Reports the average fraction of packets lost in a burst/gap.

>From section 6.7, we can infer the average burst of packet loss/discards by
dividing the total_packets_lost_in_burst/burst_count.
>From section 6.8, we can infer the impact of the burst packet loss, i.e.,
total_burst_loss/totel_expected_packets/burst_count

Do we keep both? or pick one?

Thoughts and comments on the open issue and the document in general are
appreciated.

Regards,
Varun (on behalf of the authors)

On Sat, Feb 28, 2015 at 7:22 PM, <internet-drafts@ietf.org> wrote:
>
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> This draft is a work item of the Metric Blocks for use with RTCP's
Extended Report Framework Working Group of the IETF.
>
> Title : Considerations for Selecting RTCP Extended Report (XR) Metrics
for the WebRTC Statistics API
> Authors : Varun Singh
> Rachel Huang
> Roni Even
> Dan Romascanu
> Lingli Deng
> Filename : draft-ietf-xrblock-rtcweb-rtcp-xr-metrics-01.txt
> Pages : 17
> Date : 2015-02-28
>
> Abstract:
> This document describes monitoring features related to media streams
> in Web real-time communication (WebRTC). It provides a list of RTCP
> Sender Report, Receiver Report and Extended Report metrics, which may
> need to be supported by RTP implementations in some diverse
> environments. It also defines a new IANA registry, a list of
> identifiers for the WebRTC's statistics API. These identifiers are a
> set of RTCP SR, RR, and XR metrics related to the transport of
> multimedia flows.
>
>
> The IETF datatracker status page for this draft is:
>
https://datatracker.ietf.org/doc/draft-ietf-xrblock-rtcweb-rtcp-xr-metrics/
>
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-xrblock-rtcweb-rtcp-xr-metrics-01
>
> A diff from the previous version is available at:
>
http://www.ietf.org/rfcdiff?url2=draft-ietf-xrblock-rtcweb-rtcp-xr-metrics-01
>
>
> Please note that it may take a couple of minutes from the time of
submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
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