perfsonar-user - [perfsonar-user] iperf seems to hide loss on UDP with greater length of buffer
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- From: Murilo Vetter <>
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- Subject: [perfsonar-user] iperf seems to hide loss on UDP with greater length of buffer
- Date: Wed, 4 Jan 2017 17:18:47 -0200 (BRST)
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Hi,
We are trying to generate constant 100 Mbps UDP streams using iperf 2.0.5 using gigabit ethernet cards.
In our scenario, we have an iperf running in client mode and another iperf running in server mode in an WAN link.
What was strange to us is that if we increase to 32k the length of buffer to read or write (arg -l 32k in iperf) we don't see loss, while using default configuration we notice losses.
Any one have some clue why this is happing? We were expecting to see the losses with greater length of buffer too.
Thanks,
--
Murilo Vetter
Analista REMEP-FLN/PoP-SC
PoP-SC - Ponto de Presença da RNP em Santa Catarina
REMEP-FLN - Rede Metropolitana de Educação e Pesquisa da Região de Florianópolis
RNP - Rede Nacional de Ensino e Pesquisa
UFSC - Universidade Federal de Santa Catarina
SETIC - Superintendência de Governança Eletrônica e Tecnologia da Informação e Comunicação
Fundações de Apoio FEESC e FEPESE
--/--
www.pop-sc.rnp.br
remep.pop-sc.rnp.br
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- [perfsonar-user] iperf seems to hide loss on UDP with greater length of buffer, Murilo Vetter, 01/04/2017
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