IETF
iccrg
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Thursday, March 28, 2019< ^ >
jishac has set the subject to: Internet Congestion Control Research Group
Room Configuration
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[15:15:22] <Tom Jones (SCRIBE)> Neal Cardwell - An Update on BBR
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[15:18:00] <Ingemar Johansson> What is the RTT ?
[15:18:08] <Ingemar Johansson> minRTT
[15:19:46] <Tom Jones (SCRIBE)> which slide?
[15:20:48] <Ingemar Johansson> L4S marking (DCTCP) test
[15:21:25] <Ingemar Johansson> page 6
[15:22:54] <Tom Jones (SCRIBE)> min rtt
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[15:24:58] Dave taht joins the room
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[15:29:49] <Dave taht> I had figured y'all were trying dctcp-style ecn response. Have you tried the existing RFC3168 compliant fq_codel response?
[15:30:19] <Tom Jones (SCRIBE)> Dave taht: do you want to ask now or at the end?
[15:30:39] <Dave taht> I can wait til the end. Or one of my team can ask the question.
[15:30:44] <Tom Jones (SCRIBE)> np
[15:31:09] <Dave taht> find john morton, pete heist, or rod grimes in the room.
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[15:34:37] <Dave taht> (please. They seem to not be on jabber)
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[15:35:20] <Tom Jones (SCRIBE)> I can get Rod's attention, but he is far away. I can ask at the mic when Neal is done
[15:37:58] <Dave taht> please
[15:38:33] <Mario Hock> Which mechanism achieves a convergence to fairness among multiple BBRv2 flows?
[15:39:05] <John Border> MIC: Is there something that can be done in the browser to always get a BBR response from YouTube?
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[15:40:54] <Dave taht> I'm hoping that jon, rod, or pete are in line by now?
[15:41:21] <Tom Jones (SCRIBE)> John Border: no
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[15:41:28] <Tom Jones (SCRIBE)> speaking: hiren prancaster
[15:41:32] <Dave taht> sigh
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[15:42:42] <Tom Jones (SCRIBE)> speaking: hiren
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[15:43:18] <Tom Jones (SCRIBE)> should there be bluesheets?
[15:43:28] <Tom Jones (SCRIBE)> speaker: Praveen Balasubramanian
[15:44:27] <Tom Jones (SCRIBE)> speaker: praveen
[15:45:02] <Tom Jones (SCRIBE)> speaker: michael welzl
[15:45:42] <Tom Jones (SCRIBE)> speaker: Jake Holland
[15:46:20] <Tom Jones (SCRIBE)> speaker: Andrew McGregor
[15:46:59] <Tom Jones (SCRIBE)> speaker: Jonathan Morton
[15:47:58] <Tom Jones (SCRIBE)> Topic: Peyman Teymoori - Estimating an Additive Path Cost with Explicit Congestion Notification
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[15:57:17] <Dave taht> sure wish I had live chat with my team......
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[16:07:24] <Tom Jones (SCRIBE)> speaker: Jake Holland
[16:07:41] <Tom Jones (SCRIBE)> speaker: Jonathan Morton
[16:07:58] Felix Weinrank joins the room
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[16:10:01] <Tom Jones (SCRIBE)> speaker: Bob Briscoe
[16:11:25] <Tom Jones (SCRIBE)> speaker: Michael Welzl
[16:12:12] <Tom Jones (SCRIBE)> Topic: Bob Briscoe = Implementing the 'Prague Requirements' in TCP for L4S
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[16:21:55] <Tom Jones (SCRIBE)> brian from the floor - it was like 16 marks
[16:22:10] <Tom Jones (SCRIBE)> brain from the floor - it is a lower bound
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[16:24:03] <Dave taht> Sigh. It is evident to me that the CE marks in france are coming from their enormous (3+million) fq_codel deployment.
[16:24:12] <Dave taht> (free.fr's)
[16:24:37] <Dave taht> as for argentina... no idea. Lots of openwrt there.
[16:25:16] <Dave taht> BBR currently caps cwnd at 4, not 2.
[16:30:41] <Dave taht> For the mic. 1) It is a very good assumption that the CE marks from "france" are due to free.fr's enormous (3+million) deployment of fq_codel across their dsl subscriber lines. 2) Argentina, no idea, openwrt is big there. 3) BBR currently caps cwnd reductions to 4, unlike reno.
[16:31:13] <Dave taht> as for point 1 - all someone looking at that data has to do, is pull out the IP addresses related to free.fr's BGP AS number. That's it.
[16:34:08] <Dave taht> I don't know why that simple check of where the CE markings in france are coming from is so hard.
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[16:38:23] <Tom Jones (SCRIBE)> neal: it was single queue
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[16:41:33] <Tom Jones (SCRIBE)> speaker: Praveen
[16:42:57] <Tom Jones (SCRIBE)> speaker: Jonathan Morton
[16:43:44] <Tom Jones (SCRIBE)> speaker: Andrew McGreggor
[16:44:04] <Tom Jones (SCRIBE)> speaker: Richard Scheffenegger  
[16:44:40] <Tom Jones (SCRIBE)> Topic: Szilveszter Nadas and Balazs Varga - Multi timescale bandwidth profile and its application for burst-aware fairness
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[17:04:31] <Tom Jones (SCRIBE)> speaker: Michael Menth
[17:05:29] <Tom Jones (SCRIBE)> speaker: Jake Holland
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[17:07:23] <Tom Jones (SCRIBE)> speaker: Bob Briscoe
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[17:08:35] <Tom Jones (SCRIBE)> speaker: Micael Menth
[17:08:40] <Tom Jones (SCRIBE)> Michael*
[17:08:58] <Tom Jones (SCRIBE)> speaker: Bob Briscode
[17:09:02] <Tom Jones (SCRIBE)> Briscoe
[17:09:28] <Tom Jones (SCRIBE)> and we are done
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