IETF
iccrg
iccrg@jabber.ietf.org
Tuesday, March 12, 2013< ^ >
jishac has set the subject to: Internet Congestion Control Research Group
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[17:06:02] <rscheff> agenda
[17:06:10] <rscheff> first presentation by gorry
[17:07:00] britram joins the room
[17:07:05] <rscheff> slide 1
[17:07:16] <rscheff> advice on network buffering
[17:07:25] <rscheff> slide 2
[17:07:36] ketkulka leaves the room
[17:08:38] <rscheff> slide 3
[17:10:05] <rscheff> slide 4
[17:10:36] <SwedeMike> where can the presentations be had?
[17:10:57] <rscheff> http://www.ietf.org/proceedings/86/iccrg.html
[17:11:06] <rscheff> http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-4.pdf
[17:11:14] Adium joins the room
[17:11:16] <rscheff> is the one up right now
[17:11:33] <alfs> is there a video feed aswell? (besides audio)
[17:12:08] <rscheff> no, they removed the cameras from the ISOC lunch
[17:12:12] <alfs> ok
[17:12:23] <rscheff> back to slide 2
[17:14:02] Stephen Strowes joins the room
[17:15:53] <rscheff> http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-5.pdf
[17:16:13] <rscheff> PIE AQM
[17:16:16] <rscheff> slide 1
[17:16:30] <rscheff> slide 2
[17:16:33] <rscheff> outline
[17:16:41] <rscheff> slide 3
[17:16:47] <rscheff> the design of pie
[17:16:56] <SwedeMike> thanks
[17:18:05] <rscheff> slide 4
[17:18:16] <rscheff> (?) two arrows appeared
[17:18:30] <rscheff> pie for data centers
[17:18:33] <rscheff> slide 5
[17:18:37] <rscheff> slide 6
[17:18:40] <rscheff> simulation setup
[17:18:50] <rscheff> slide 7
[17:19:00] <rscheff> simulation red+ecn vs pie+ecn
[17:19:00] nestor.tiglao joins the room
[17:20:31] <rscheff> slide 8
[17:20:39] <rscheff> simulation pie+ecn
[17:21:00] <rscheff> slide 9
[17:21:12] <rscheff> simulation red+ecn vs pie ecn 5 flows
[17:21:13] <Adium> Note from remote: The MP3 audio feed is quite distorted.  Maybe the mic level is too high.
[17:21:23] <alfs> the audio is clipping. Can mic amplification be reduced?
[17:21:24] Jason Weil joins the room
[17:21:32] <Stephen Strowes> ++
[17:21:32] <rscheff> slide 10
[17:21:37] <rscheff> throughput
[17:21:46] <rscheff> slide 11
[17:21:46] <britram> there doesn't appear to be anyone on the board
[17:21:50] <SwedeMike> stefalfr: +1.
[17:21:56] <rscheff> 20 cubic flows
[17:22:00] <rscheff> slide 12
[17:22:02] <rscheff> throughput
[17:22:04] <rscheff> slide 13
[17:22:11] <rscheff> varying tcp intensity
[17:22:27] <rscheff> @britram what do you mean?
[17:22:38] <rscheff> slide 14
[17:22:47] <rscheff> red vs pie changing intensitry
[17:22:49] <rscheff> slide 15
[17:22:51] <rscheff> throughput
[17:23:07] <rscheff> slide 16
[17:23:13] <rscheff> varying, 20 flows
[17:23:27] <rscheff> slide 17
[17:23:31] <rscheff> queue delay
[17:24:12] <rscheff> slide 18
[17:24:14] <rscheff> troughtput
[17:24:22] <rscheff> slide 19
[17:24:25] <rscheff> tcp sack delay
[17:24:57] <rscheff> slide 20
[17:25:04] <rscheff> changing bandwidht, throughput
[17:25:24] <rscheff> slide 21
[17:25:29] <rscheff> service provider space
[17:26:11] <rscheff> slide 22
[17:26:15] <rscheff> simulation setup
[17:26:31] Chris Donley joins the room
[17:26:57] <rscheff> slide 23
[17:27:10] <rscheff> based on likt capacity or app requirement
[17:27:30] <rscheff> slide 24
[17:27:36] <rscheff> link throughput
[17:27:41] <rscheff> sldei 25
[17:27:46] <rscheff> traffic scenarios
[17:27:50] <rscheff> slide 26
[17:27:58] <rscheff> auto setting base on queue draining speed
[17:28:31] <rscheff> slide 27
[17:28:41] <rscheff> slide 28
[17:28:44] <rscheff> fq pie
[17:28:46] <rscheff> slide 29
[17:28:57] <rscheff> fair queueing and its derivative at cisco
[17:29:46] <rscheff> slide 30
[17:29:52] <rscheff> fq offerings at cisco
[17:29:54] <SwedeMike> sound is clipping again
[17:30:06] <SwedeMike> great, much better.
[17:30:16] <rscheff> thx to bob
[17:30:32] <Stephen Strowes> ah yes, that's better!
[17:30:59] <rscheff> lars at mike
[17:31:05] <rscheff> waiting...
[17:31:31] <rscheff> slide 31
[17:31:41] <rscheff> fq_pie for mixed traffic
[17:32:00] <rscheff> fred baker @ mike
[17:33:47] <rscheff> unknown person at mike
[17:33:52] <rscheff> now bob waiting
[17:34:32] <SwedeMike> I would appreciate if the person wanting RED standardised would outline a problem description because I don't really understand.
[17:34:41] <SwedeMike> perhaps ask that person to post to the lits?
[17:34:44] <SwedeMike> list
[17:34:54] <Stephen Strowes> bob didn't say his name!
[17:34:56] <Stephen Strowes> ah, there we go.
[17:35:06] <rscheff> stephen (?)
[17:35:17] <SwedeMike> ask person to state his name?
[17:35:50] <rscheff> lars
[17:36:07] <rscheff> jim gettys
[17:36:36] <rscheff> slide 31 again
[17:37:21] <rscheff> slide 32
[17:37:30] <rscheff> voip traffic incurs almost 0 queueing latency
[17:37:49] <rscheff> slide 33
[17:38:00] <rscheff> fq_pie controls latency to be aroun 10 ms
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[17:38:29] <rscheff> slide 34
[17:38:32] <rscheff> next steps
[17:38:35] <rscheff> slide 35
[17:38:39] <rscheff> plan for next steps
[17:40:41] <rscheff> slide 36
[17:40:43] <rscheff> thank you
[17:41:25] <rscheff> jim gettys @ mike
[17:42:28] <rscheff> matt mathis @ mike
[17:42:43] <rscheff> bob briscoe
[17:44:09] <rscheff> http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-0.pdf
[17:44:26] <rscheff> the state of the art in bufferbloat testing and reduction on linux
[17:44:37] <rscheff> slide 1
[17:45:11] <rscheff> slide 2 outline
[17:45:48] <rscheff> slide 3
[17:45:49] <rscheff> introduction
[17:45:51] <rscheff> slide 4
[17:45:55] <rscheff> spoiler
[17:46:26] <rscheff> slide 5
[17:46:32] <rscheff> the research behind this
[17:47:04] <rscheff> slide 6
[17:47:11] <rscheff> r4ecent changes in the linux kernel
[17:47:21] <rscheff> slide 7
[17:47:27] <rscheff> byte queue limits
[17:48:31] <rscheff> slide 8
[17:48:37] <rscheff> tcp small queues
[17:49:19] <rscheff> slide 9
[17:49:35] <rscheff> new queuign disciplines
[17:50:20] <rscheff> slide 10
[17:50:30] <rscheff> testing methodology and best practises
[17:50:34] <rscheff> slide 11
[17:50:41] <rscheff> testing methodoilogy
[17:51:06] <rscheff> slide 12
[17:51:09] <rscheff> slide 11
[17:51:15] <rscheff> slide 12
[17:51:27] <rscheff> the netperf wwrapper testing tool
[17:52:37] <rscheff> slide 13
[17:52:48] <rscheff> the rrul test
[17:54:08] <rscheff> slide 14
[17:54:11] <rscheff> best confioguration practise
[17:55:52] <rscheff> slide 15
[17:55:59] <rscheff> best config practise cont
[17:57:18] <rscheff> slide 16
[17:57:23] <rscheff> etst results
[17:57:28] <rscheff> slide 17
[17:57:41] <rscheff> two tcp streams
[17:58:15] <rscheff> slide 18
[17:58:18] <rscheff> codel
[17:58:30] <rscheff> slide 19
[17:58:32] <rscheff> sfq
[17:58:36] <rscheff> slide 20
[17:58:39] <rscheff> slide 21
[17:58:45] <rscheff> slide 22
[17:58:51] <rscheff> cdf plot
[17:59:06] <rscheff> slide 23
[17:59:14] <rscheff> rrul test
[17:59:36] <rscheff> slide 24
[17:59:36] <rscheff> codel
[17:59:38] <rscheff> slide 25
[17:59:40] <rscheff> sfq
[17:59:57] <rscheff> slide 26
[18:00:01] <rscheff> slide 27
[18:00:04] <rscheff> rrul comparison
[18:00:13] <rscheff> slide 28
[18:00:15] <rscheff> cdf
[18:00:36] <rscheff> slide 29
[18:00:41] <rscheff> udp flood
[18:01:20] <rscheff> slide 30
[18:01:24] <rscheff> references
[18:01:27] <rscheff> slide 31
[18:01:32] <rscheff> unknown
[18:01:54] <rscheff> slide 5
[18:01:54] <britram> vijay subramanian
[18:02:00] <rscheff> thx
[18:02:12] <britram> (i think, reading from a distance)
[18:02:53] <rscheff> rong pan
[18:03:44] <rscheff> dave täht
[18:04:15] <SwedeMike> mic clipping
[18:04:27] <rscheff> rong pan
[18:04:41] <SwedeMike> (when dave was speaking)
[18:04:46] <SwedeMike> rong pan is fine
[18:04:48] <rscheff> slide 29
[18:05:31] <rscheff> jim gettys
[18:06:00] <rscheff> vijay subramanian
[18:07:31] <rscheff> http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-3.pdf
[18:07:45] <rscheff> bob brisco
[18:08:10] <rscheff> in the full paper there is that
[18:08:42] <rscheff> slide 1
[18:10:18] <rscheff> slide 2
[18:10:23] <rscheff> simulation overview
[18:11:49] <rscheff> slide 3
[18:11:56] <rscheff> buffer mgmt algos tests
[18:13:29] <rscheff> jim gettys
[18:13:40] <rscheff> @ mike
[18:15:43] <rscheff> rong pan
[18:16:42] <rscheff> slide 4
[18:16:50] <rscheff> traffic loading scenarios
[18:17:30] <rscheff> slide 5
[18:17:35] <rscheff> shared link congestion moel
[18:17:51] <rscheff> slide 6
[18:17:55] <rscheff> gaming latency
[18:18:32] <rscheff> ron pang
[18:18:41] <rscheff> rong pan
[18:21:49] Lars joins the room
[18:22:03] <rscheff> Jana @ mike
[18:22:22] <rscheff> matt mathis
[18:24:04] <rscheff> michael @ mike
[18:24:38] <rscheff> slide 7
[18:24:43] <rscheff> gaming packet loss
[18:25:46] <rscheff> bob briscoe
[18:26:11] <rscheff> slide 8
[18:26:14] <rscheff> web page load time
[18:26:41] <rscheff> slide 9
[18:26:47] <rscheff> voip audio quality
[18:27:18] <rscheff> micheal malls
[18:27:25] <rscheff> slide 10
[18:27:29] <rscheff> tcp short time scale
[18:29:13] <rscheff> slide 11
[18:29:22] <rscheff> initial tcp resuls with pie
[18:30:02] <rscheff> rong pan
[18:30:52] Piers O'Hanlon joins the room
[18:31:04] <rscheff> slide 12
[18:31:08] <rscheff> tcp long time scale perf
[18:31:25] <rscheff> slide 13
[18:31:27] <rscheff> wrap up
[18:31:51] <rscheff> kevin fall
[18:32:43] <rscheff> lars eggert
[18:33:09] <rscheff> yuchung cheng
[18:34:16] David Hayes leaves the room
[18:35:02] <Piers O'Hanlon> Were varying RTTs flows tested? (it seems that the current RTT is a few ms?)
[18:35:07] <rscheff> Jana
[18:35:46] <rscheff> dave täht: working on this now
[18:35:48] <rscheff> matt mathis
[18:36:58] <rscheff> rong pan
[18:37:31] David Hayes joins the room
[18:38:29] <rscheff> when will you release your code (from dave täth)
[18:39:05] <rscheff> bob brisco
[18:39:32] <rscheff> dave täth
[18:40:17] <rscheff> http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-6.pdf
[18:40:22] <rscheff> slide 1
[18:40:49] <rscheff> slide 2
[18:40:57] <rscheff> goals of this presentation
[18:41:22] <rscheff> slide 3
[18:41:28] <rscheff> ippm model based metrics
[18:42:47] <rscheff> slide 4
[18:43:01] <rscheff> bulk transport capacity is hard for a reason
[18:44:00] <rscheff> slide 5
[18:44:10] <rscheff> model based metrics: a better way to do btc
[18:44:40] <rscheff> slide 6
[18:44:45] <rscheff> the pieces (simplified)
[18:45:15] <rscheff> bill
[18:45:59] <rscheff> slide 7
[18:46:08] <rscheff> a common context for all examples
[18:47:06] <rscheff> slide 8
[18:47:16] <rscheff> a common context for all exampes
[18:47:53] <rscheff> slide 9
[18:48:01] <rscheff> 1 baseline cbr performance test
[18:48:56] <rscheff> slide 10
[18:48:59] <rscheff> derating
[18:49:13] <rscheff> vijay
[18:50:15] <rscheff> slide 11
[18:50:25] <rscheff> 2 slowstart style burst test
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[18:51:31] <rscheff> slide 12
[18:51:41] <rscheff> 3a interface rate burst caused by the server
[18:53:29] <rscheff> slide 13
[18:53:43] <rscheff> 3b interface rate bursts caused elsewhere
[18:54:46] <rscheff> slide 14
[18:54:54] <rscheff> what burst torlerance should be ok
[18:55:57] <rscheff> slide 15
[18:56:05] <rscheff> 4 tolerance to reordering
[18:56:54] <rscheff> slide 16
[18:56:59] <rscheff> 5 standing queue test
[18:57:04] <rscheff> slide 17
[18:57:09] <rscheff> queue example
[18:58:32] <rscheff> slide 18
[18:58:38] <rscheff> stading queue test
[18:59:14] <rscheff> slide 19
[18:59:18] <rscheff> open questions
[18:59:52] <rscheff> kevin fall
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