IETF
QUIC
quic@jabber.ietf.org
Wednesday, July 24, 2019< ^ >
ch has set the subject to: QUIC!
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[13:26:59] <bridgebot> [slack] <rmarx> mic: how likely do people think it is that implementations will implement a prioritization extension 3-6 months after QUIC / H3 ships?
[13:27:58] <bridgebot> [slack] <rmarx> as in: won't we have plenty of implementations just not bothering?
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[13:29:43] <bridgebot> [slack] <craigt> ack
[13:31:38] <bridgebot> [slack] <dmitri> If major browsers use a priority scheme, the servers will surely follow.
[13:31:51] <bridgebot> [slack] <dmitri> (you can mic it if you want)
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[14:07:51] <craigt> I'm not certain a jabber scribe was nominated: Will take that on unless someone already is…
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[14:11:50] <craigt> Remote folk: When the screen go here, can you still see the presentation?
[14:12:35] <Robin Marx> I can see the slides just fine atm
[14:12:39] <Baptiste Jonglez> what do you mean by "here"? right now, the slides are visible
[14:13:00] <craigt> Great, In the room the large screen ocassionally lose sync
[14:13:18] <Jonathan Lennox> I'm pretty sure the meetecho screen in the room is the same feed the remote participants see, so when we can see the slides there, they can as well
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[14:14:23] <Meetecho> Jonathan Lennox: that's correct, the second screen gets the slides via WebRTC as an attendee
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[14:37:14] <Martin Thomson> is_quic = !!(datagram[0] & 0x40)
[14:37:18] <Martin Thomson> Jonathan Lennox: ^^
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[14:40:26] <Jonathan Lennox> If middlebox vendors consider that a strong enough test
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[14:41:53] <synp> I'm a former employee of such a vendor. The optimization is not for engineer time, but for minimizing time / CPU for classification.
So the question is what's the easiest (for the computer!) way to identify a flow as "Quic"
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[14:49:38] <synp> Ship a new version every 3 months even with no other changes on the wire.
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[14:52:18] <Martin Thomson> Ben just muddied the waters
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[14:53:04] <Martin Thomson> The key point with defense against eager is that we are requiring extraordinary access, new network requests, or that sort of thing.
[14:53:42] <Dmitri Tikhonov> I hum for nothing
[14:53:48] <Bernard Aboba> I hum for nothing
[14:53:50] <Praveen Balasubramanian> hum for nothing
[14:54:00] <Praveen Balasubramanian> someone please relay
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[14:57:22] <synp> Deploying two versions at once is not nothing
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[14:58:22] <Martin Thomson> deploying v1 and v2 at once does nothing, because then the lazy implementers do v==1||v==2
[14:59:13] <Martin Thomson> see the soon to come draft-iab-use-it-or-lose-it
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[15:18:09] <Robin Marx> mic:risk that H3's performance will be lower than H2's. Might impact (early) adoption of QUIC down the road.
[15:18:35] <craigt> Sorry Robin; You jiust missed
[15:18:51] <Robin Marx> :(
[15:18:57] <Dmitri Tikhonov> I hum to keep H2 priorities in H3
[15:19:43] <Robin Marx> I hum for option 3 (we don't know yet)
[15:21:24] <Robin Marx> In that case I change my hum to option 2 :)
[15:22:31] <Robin Marx> I mainly don't want to ship H3 without -something- related to priorities
[15:23:01] <Robin Marx> after the re-phrasing of option 2, that left the door open to do that, so that's the better one for me
[15:24:12] <Martin Thomson> Robin Marx: don't underestimate the ability of this community to flail
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[15:25:57] <Robin Marx> :)
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[15:27:36] <Martin Thomson> Praveen Balasubramanian: try typing
[15:27:48] <Martin Thomson> Praveen Balasubramanian: maybe reduce the gain a little
[15:27:58] <craigt> praveen: move away from mic
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[15:34:39] <Praveen Balasubramanian> agree to close without action and revisit if there's data suggesting otherwise
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[15:42:39] <Praveen Balasubramanian> Possible expiration events for minrtt: persistent congestion, ssthresh changes, app idle.
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[15:44:41] <Jonathan Lennox> Bikeshed: min_recent_RTT?
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