Re: [quicwg/base-drafts] Rewrite of RTT estimation section (#2592)
ianswett <notifications@github.com> Wed, 10 April 2019 01:27 UTC
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Subject: Re: [quicwg/base-drafts] Rewrite of RTT estimation section (#2592)
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ianswett commented on this pull request. > -On every newly acknowledged ack-eliciting largest acked: +## Measuring and Reporting Host Delay {#host-delay} + +An endpoint measures the delay incurred between when a packet is received and +when the corresponding acknowledgment is sent. The endpoint encodes this host +delay for the largest acknowledged packet in the Ack Delay field of an ACK frame +(see Section 19.3 of {{QUIC-TRANSPORT}}). This allows the receiver of the ACK +to adjust for any host delays - importantly, for delayed acknowledgements - when +estimating the path RTT. In certain deployments, a packet might be held in the +OS kernel or elsewhere on the host before being processed by the QUIC +stack. Where possible, an endpoint SHOULD include these delays when populating +the Ack Delay field in an ACK frame. + +An endpoint MUST NOT excessively delay acknowledgements of ack-eliciting +packets. The maximum ack delay is communicated in the max_ack_delay transport +parameter, see Section 18.1 of {{QUIC-TRANSPORT}}. max_ack_delay implies an I would disagree, since I do not like the word implies in IETF documents. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/quicwg/base-drafts/pull/2592#discussion_r273760955
- [quicwg/base-drafts] Rewrite of RTT estimation se… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… ianswett
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite of RTT estimatio… Jana Iyengar