Skip to main content

Last Call Review of draft-ietf-rmcat-rtp-cc-feedback-10

Request Review of draft-ietf-rmcat-rtp-cc-feedback
Requested revision No specific revision (document currently at 12)
Type Last Call Review
Team Security Area Directorate (secdir)
Deadline 2022-08-09
Requested 2022-07-26
Authors Colin Perkins
I-D last updated 2022-08-08
Completed reviews Genart Last Call review of -10 by Linda Dunbar (diff)
Artart Last Call review of -10 by Shuping Peng (diff)
Secdir Last Call review of -10 by Linda Dunbar (diff)
Artart Telechat review of -11 by Dr. Bernard D. Aboba (diff)
Assignment Reviewer Linda Dunbar
State Completed
Review review-ietf-rmcat-rtp-cc-feedback-10-secdir-lc-dunbar-2022-08-08
Posted at
Reviewed revision 10 (document currently at 12)
Result Has nits
Completed 2022-08-08
I have reviewed this document as part of the security directorate's ongoing
effort to review all IETF documents being processed by the IESG.  These
comments were written primarily for the benefit of the security area directors.
Document editors and WG chairs should treat these comments just like any other
last-call comments.

This document discusses the types of congestion control feedback using the RTP
Control Protocol. The document analyzes the feedback packet sizes and content
for point-to-point Voice Telephony and point-to-point Conference call.

Since most of today's conference bridges are multi-points to multi-points or at
least multi-points (users) to multi-servers, I think multi-points analysis
would be more useful. Will the author consider adding them?

As for the Consideration of the RTCP feedback (Section 2), should you also
consider how far away the endpoints are?  Will network congestion and distances
impact the RTCP feedback?

Section 1 states, "It is also assumed that the congestion control feedback
mechanism in RFC8888, .. are available." Question: Is the Congestion Control
Feedback mechanism described in this document the same as in RRC 8888? What are
the key differences?

The Security Considerations Section content is good.

Linda Dunbar