[rmcat] draft-sarker-rmcat-eval-test-00, test case 4.4 RMCAT Flow competing with a long TCP Flow
Ingemar Johansson S <ingemar.s.johansson@ericsson.com> Tue, 29 April 2014 07:57 UTC
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From: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
To: "rmcat WG (rmcat@ietf.org)" <rmcat@ietf.org>
Thread-Topic: draft-sarker-rmcat-eval-test-00, test case 4.4 RMCAT Flow competing with a long TCP Flow
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Date: Tue, 29 Apr 2014 07:57:34 +0000
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Cc: Erlendur Karlsson <erlendur.karlsson@ericsson.com>, Zaheduzzaman Sarker <zaheduzzaman.sarker@ericsson.com>, "varun@comnet.tkk.fi" <varun@comnet.tkk.fi>, "mramalho@cisco.com" <mramalho@cisco.com>, "xiaoqzhu@cisco.com" <xiaoqzhu@cisco.com>
Subject: [rmcat] draft-sarker-rmcat-eval-test-00, test case 4.4 RMCAT Flow competing with a long TCP Flow
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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 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. /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<mailto: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.brainyquote.com/quotes/authors/g/groucho_marx.html> =================================
- [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