Re: [rmcat] draft-sarker-rmcat-eval-test-00, test case 4.4 RMCAT Flow competing with a long TCP Flow
Varun Singh <vsingh.ietf@gmail.com> Tue, 29 April 2014 08:08 UTC
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From: Varun Singh <vsingh.ietf@gmail.com>
Date: Tue, 29 Apr 2014 11:08:20 +0300
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To: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
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Cc: "rmcat WG (rmcat@ietf.org)" <rmcat@ietf.org>, Erlendur Karlsson <erlendur.karlsson@ericsson.com>, "mramalho@cisco.com" <mramalho@cisco.com>, Zaheduzzaman Sarker <zaheduzzaman.sarker@ericsson.com>, "xiaoqzhu@cisco.com" <xiaoqzhu@cisco.com>
Subject: Re: [rmcat] draft-sarker-rmcat-eval-test-00, test case 4.4 RMCAT Flow competing with a long TCP Flow
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Hi Ingemar, Thank you for implementing the test cases and providing feedback. more inline. On Tue, Apr 29, 2014 at 10:57 AM, Ingemar Johansson S <ingemar.s.johansson@ericsson.com> wrote: > Hi > > > > I am experimenting with the bottleneck test cases and found an issue with > the competing TCP flows test case. > > This test case specifes a Maximum end to end jitter = 30ms. This is > implemented as a uniform [0-30ms] random delay in my simulator setup. > The intention was to keep some network characteristics common across scenarios. However, not all > The problem with this is that it creates so much reordering that TCP will > trigger CWND reduction, and I guess this is not the intention or ? > > My recommendation is that we should remove the random delay completely in > this test case (and also in 4.5) as the FTP will introduce plenty of jitter > anyhow. > Yes, I am in favor of removing the additional jitter from the TCP scenarios. > > > /Ingemar > > > > ================================= > > Ingemar Johansson M.Sc. > > Senior Researcher > > > > Ericsson AB > > Wireless Access Networks > > Labratoriegränd 11 > > 971 28, Luleå, Sweden > > Phone +46-1071 43042 > > SMS/MMS +46-73 078 3289 > > ingemar.s.johansson@ericsson.com > > www.ericsson.com > > > > “Those are my principles, and if you don't like them... > well, I have others.” Groucho Marx > ================================= > > > > -- http://www.netlab.tkk.fi/~varun/
- [rmcat] draft-sarker-rmcat-eval-test-00, test cas… Ingemar Johansson S
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Fred Baker (fred)
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Varun Singh
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Ingemar Johansson S
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Zaheduzzaman Sarker
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Ingemar Johansson S
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Fred Baker (fred)
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Colin Perkins
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Eggert, Lars
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Randell Jesup
- Re: [rmcat] draft-sarker-rmcat-eval-test-00, test… Stefan Holmer