Re: [quicwg/base-drafts] Does a timestamp for a packet implicity ACK it (#698)

janaiyengar <notifications@github.com> Wed, 06 September 2017 21:06 UTC

Date: Wed, 06 Sep 2017 14:06:52 -0700
From: janaiyengar <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Does a timestamp for a packet implicity ACK it (#698)
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@martinduke: I agree with you in theory that a timestamp semantically is an ack. That said, I can't see why a receiver would send a timestamp but not an ack for it -- that seems backwards. Timestamps are advisory in that they may or may not be received, and they tend to be sent just once. 

Acks are the "primary" information here. It is much simpler to write out all the ack blocks and then fit all the timestamps you can within a frame, than to have rules that mix and match both. Making the receiver never send timestamps for packets that are not being acked in the frame makes it clear what the expected behavior is, and simplifies parsing the ack frame.

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[quicwg/base-drafts] Does a timestamp for a packe… Subodh Iyengar
Re: [quicwg/base-drafts] Does a timestamp for a p… ianswett
Re: [quicwg/base-drafts] Does a timestamp for a p… Subodh Iyengar
Re: [quicwg/base-drafts] Does a timestamp for a p… ianswett
Re: [quicwg/base-drafts] Does a timestamp for a p… MikkelFJ
Re: [quicwg/base-drafts] Does a timestamp for a p… ianswett
Re: [quicwg/base-drafts] Does a timestamp for a p… martinduke
Re: [quicwg/base-drafts] Does a timestamp for a p… martinduke
Re: [quicwg/base-drafts] Does a timestamp for a p… janaiyengar
Re: [quicwg/base-drafts] Does a timestamp for a p… martinduke
Re: [quicwg/base-drafts] Does a timestamp for a p… ekr
Re: [quicwg/base-drafts] Does a timestamp for a p… Martin Thomson