[xrblock] Review of draft-ietf-xrblock-rtcp-xr-summary-stat

["Claire Bi(jiayu)" <[e-mail]>]

Hi,

I took some time to review draft-ietf-xrblock-rtcp-xr-summary-stat and have the following comments:

1. Section 1.
s/transport layer metrics/ transport related end system metrics

2.Section 1.
s/Group of Pictures/Group of Pictures (GOP)

3.section 2.1
s/derivation frame/derived frame

4.Section 3
s/transport layer metrics/transport related end system metrics

5.Section 3.1.1, figure
s/resv./Reserved

6.Section 3.2.1, figure
s/resv./Reserved

7. Section 3.2.2
The Interval metric flag of Burst Gap Discard Summary Statistics metrics block should
be consistent with the interval metric flag of Burst Gap Loss Summary Statistics
metrics. Therefore I propose the following change
OLD TEXT:
"
This field is used to indicate whether the metrics block is an

Interval or a Cumulative report,

"
NEW TEXT
"
      This field is used to indicate whether the Burst/Gap Discard Summary

      Statistics metrics are Sampled, Interval or Cumulative metrics, that is, whether the

      reported values applies to the most recent measurement interval

      duration between successive metrics reports (I=10) (the Interval

      Duration) or to the accumulation period characteristic of

      cumulative measurements (I=11) (the Cumulative Duration) or is a

      sampled instantaneous value (I=01) (Sampled Value).

"
8.Section 4.1.1,figure
s/dicarded_frames/discarded_frames

9.Section 6.1
s/Section 5.1/Section 3.1
s/Section 5.2/Section 3.2
s/Section 6.1/Section 4.1

10.Section 9.2
Some references need to be updated to the latest version.

Claire