[AVTCORE] Mirja Kühlewind's Discuss on draft-ietf-avtcore-rtp-circuit-breakers-15: (with DISCUSS and COMMENT)
"Mirja Kuehlewind" <ietf@kuehlewind.net> Tue, 03 May 2016 12:03 UTC
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From: Mirja Kuehlewind <ietf@kuehlewind.net>
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Subject: [AVTCORE] Mirja Kühlewind's Discuss on draft-ietf-avtcore-rtp-circuit-breakers-15: (with DISCUSS and COMMENT)
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Mirja Kühlewind has entered the following ballot position for draft-ietf-avtcore-rtp-circuit-breakers-15: Discuss When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-avtcore-rtp-circuit-breakers/ ---------------------------------------------------------------------- DISCUSS: ---------------------------------------------------------------------- This is about one point in section 7 (ECN) that I think is wrong but I would like to get some feedback from the authors: "then ECN-CE marked packets SHOULD be treated as if they were lost when calculating if the congestion- based RTP circuit breaker" (also section 5: "The count of ECN-CE marked packets contained in those ECN feedback reports is counted towards the number of lost packets reported") We are currently discussion mechanisms where the AQM in the congested network node sends much more CE markings than one would see loss (when using TCP) for the same level of congestion. When treating ECN-CE similar to loss, such a different behavior could trigger the circuit breaker unnecessarily. Potentially ECN-CE might not need to be considered here at all, because as long as there are (only) ECN-CE marks (and no loss) all data is transmitted correctly to the receiver and therefore there is no need to trigger a circuit breaker. Further also in section 7: "ECN-CE marked packets SHOULD be treated as if they were lost for the purposes of congestion control" This document should not impose any SHOULDs for congestion control as this doc is only about circuit breaker sand therefore the sentence above should be removed. ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Few more minor comments: 1) reference [I-D.ietf-tsvwg-circuit-breaker] should be normative 2) How is the loss rate in 4.3 calculated if some (but no all) RR are lost? 3) I don't think that most of the text on congestion control in section 2 (as well as the abstract) is necessary for this doc (but it also don't really hurt)
- [AVTCORE] Mirja Kühlewind's Discuss on draft-ietf… Mirja Kuehlewind
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Varun Singh
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Varun Singh
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Magnus Westerlund
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Magnus Westerlund
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Magnus Westerlund
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Ben Campbell
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Alissa Cooper
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Ben Campbell
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Colin Perkins
- Re: [AVTCORE] Mirja Kühlewind's Discuss on draft-… Mirja Kuehlewind (IETF)