Re: [quicwg/base-drafts] Rewrite section on ack range limiting (#3315)
Martin Thomson <notifications@github.com> Thu, 02 January 2020 22:50 UTC
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Subject: Re: [quicwg/base-drafts] Rewrite section on ack range limiting (#3315)
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martinthomson commented on this pull request. > -number of ACK Ranges it sends. A receiver can do this even without receiving -acknowledgment of its ACK frames, with the knowledge this could cause the sender -to unnecessarily retransmit some data. Standard QUIC algorithms -({{QUIC-RECOVERY}}) declare packets lost after sufficiently newer packets are -acknowledged. Therefore, the receiver SHOULD repeatedly acknowledge newly -received packets in preference to packets received in the past. +A receiver MAY limit the number of ACK Ranges it sends to limit receiver state +and the size of ACK frames. A receiver SHOULD track which ACK frames have been +acknowledged by its peer, so that it can limit ACK Ranges ({{ack-ranges}}) to +those not yet acknowledged by the sender. + +It is possible that the ACK frame is too large, despite limiting ACK Ranges to +those not yet acknowledged. A receiver can stop repeating unacknowledged ACK +Ranges to further limit the size of the ACK frame. When doing so, a receiver +SHOULD give preference to acknowledging newly received packets to those received +earlier. It is possible that such ACK Ranges are not received by the sender Larger packet numbers should be a very good approximation of that, for sure. -- 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/3315#discussion_r362659534
- Re: [quicwg/base-drafts] Rewrite section on ack r… ianswett
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- [quicwg/base-drafts] Rewrite section on ack range… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite section on ack r… Kazuho Oku
- Re: [quicwg/base-drafts] Rewrite section on ack r… ianswett
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite section on ack r… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite section on ack r… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite section on ack r… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite section on ack r… Jana Iyengar
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson
- Re: [quicwg/base-drafts] Rewrite section on ack r… Martin Thomson