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Old 03-24-2009, 03:08 AM
Asif Iqbal
 
Default iperf 2.0.4 is misbehaving

iqbala@example:$ sudo netstat -nap | grep 5001

tcp******* 0***** 0 0.0.0.0:5001*********** 0.0.0.0:*************** LISTEN***** 23658/iperf****
tcp******* 0***** 0 192.168.1.2:5001**** 10.0.0.2:47160**** CLOSE_WAIT* 23658/iperf****

tcp******* 0***** 0 192.168.1.2:5001**** 10.0.0.2:32247**** CLOSE_WAIT* 23658/iperf****
tcp******* 0***** 0 192.168.1.2:5001**** 10.0.0.2:13143**** CLOSE_WAIT* 23658/iperf****

tcp******* 0***** 0 192.168.1.2:5001**** 10.0.0.2:49928**** CLOSE_WAIT* 23658/iperf****
tcp******* 0***** 0 192.168.1.2:5001**** 10.0.0.2:15159**** CLOSE_WAIT* 23658/iperf****


iqbala@example:$ htop

* 1* [##**********************100.0%]**** Tasks: 36 total, 6 running
* 2* [##**********************100.0%]**** Load average: 5.01 5.01 5.00
* Mem[||###***************114/2007MB]**** Uptime: 13 days, 11:48:39

* Swp[|******************** 4/3153MB]

* PID USER**** PRI* NI* VIRT** RES** SHR S CPU% MEM%** TIME+* Command**********
23709 root***** 20** 0 63292** 736** 436 R 41.0* 0.0* 9h02:37 iperf -s -D******
26837 root***** 20** 0 63292** 736** 436 R 41.0* 0.0* 2h52:10 iperf -s -D

23666 root***** 20** 0 63292** 736** 436 R 41.0* 0.0* 9h02:29 iperf -s -D
26294 root***** 20** 0 63292** 736** 436 R 38.0* 0.0* 3h23:57 iperf -s -D
26292 root***** 20** 0 63292** 736** 436 R 36.0* 0.0* 3h28:42 iperf -s -D

30701 iqbala*** 20** 0 19368* 1312* 1032 R* 0.0* 0.1* 0:00.04 htop

iqbala@example:$ sudo tcpdump -n -i eth2 port 5001
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth2, link-type EN10MB (Ethernet), capture size 96 bytes


iqbala@example:$ iperf -v
iperf version 2.0.4 (7 Apr 2008) pthreads

iqbala@example:~$ uname -a
Linux example 2.6.27-11-generic #1 SMP Thu Jan 29 19:28:32 UTC 2009 x86_64 GNU/Linux

Any suggestion how to fix it?


I posted in iperf forum as well.

--
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
A: Because it messes up the order in which people normally read text.

Q: Why is top-posting such a bad thing?



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