Gabriel L. Somlo | 10 Apr 17:20 2015
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iperf 2.0.8 'make install' error

Hi,

I'm packaging iperf-2.* in Fedora, and in the process of upgrading
to 2.0.8 (from the old 2.0.5) I noticed that 'make install' fails:

...
Making install in man
make[1]: Entering directory '/tmp/FOO/iperf-2.0.8/man'
make[2]: Entering directory '/tmp/FOO/iperf-2.0.8/man'
make[2]: Nothing to be done for 'install-exec-am'.
 /usr/bin/mkdir -p '/tmp/FOO/share/man/man1'
 /usr/bin/install -c -m 644 iperf.1 iperf.1 '/tmp/FOO/share/man/man1'
/usr/bin/install: will not overwrite just-created ‘/tmp/FOO/share/man/man1/iperf.1’ with ‘iperf.1’
Makefile:292: recipe for target 'install-man1' failed
make[2]: *** [install-man1] Error 1
...

The problem originates here (lines 256-257 of man/Makefile.in):

man_MANS = iperf.1
dist_man_MANS = $(man_MANS)

Then, the "install-man1" target attempts to install files from *both*
man_MANS and dist_man_MANS, essentially ending up with "iperf.1 iperf.1"

This happened in 2.0.5 as well, AFAICT, except now the makefile tries
to be "smarter" and do it all from a single invocation of
/usr/bin/install, whereas 2.0.5 used to invoke /usr/bin/install for
each file, thus hiding the problem.

(Continue reading)

onkar kundargi | 27 Mar 11:24 2015
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how to calculate latency in iperf 2.0.8

Hello sir ,
               can you please tell me command to calculate latency ???


thanks
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onkar kundargi | 25 Mar 08:33 2015
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bandwidth parameter

hello sir,

how can i fix bandwidth for tcp as there is no option available for iperf.
consider scenario  if i need 23.00 GB bandwidth at output. so which parameter should i tunned in input format of iperf.
eg. iperf --client what options i need to consider to get 23.gb bandwidth at output



thanks
onkar
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onkar kundargi | 19 Mar 12:58 2015
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difference betwwen uperf and iperf ??

hello sir


what is exact difference between uperf and iperf??


thanks
onkar
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onkar kundargi | 13 Mar 10:47 2015
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Fwd: input to consider for jitter and throughput





Hello ,
           May i know command to consider throughput as input and also jitter as input



thanks

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Bob (Robert) McMahon | 5 Feb 18:10 2015

iperf2.0.9 plans

Hi,

 

Now that iperf 2.0.8 is out I’ve been getting requests for new features and bug fixes.  Here are my current plans:

 

o)  Support write error count to UDP client reports

o)  Add support for TTL information into server reports

o)  Add support for ToS information into server reports

o)  Fix –o (redirect to file) option

o)  Integrate simple IGMP/MLD querier into client to support testing v4/v6 multicast

o) Thoroughly test v6 and fix bugs found

o) Support new traffic option giving packet burst length, interburst gap, and interpacket gap

o) Come up with an analysis technique on the server to report how well the above is able to be reconstructed by the server app

 

Please feel free to contact me if other things are needed.  Also, if you have ideas on analyzing the traffic pattern per the above in a simple way, please share.

 

Bob McMahon

Broadcom Senior Principal SW Engineer, Wi-Fi Division

 

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Kartik Kumar Perisetla | 29 Jan 04:34 2015
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Regarding packet loss in UDP

Hi,

I am looking for a way to measure UDP packet loss between 2 hosts at a given bandwidth. 
I found I could leverage Mininet's iperf method to set l4type to UDP and set bandwidth. However, the response being returned isn't indicating anything about packet loss. 

So could someone please throw some light on how could I get packet loss in this scenario?

Thanks!

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Steve Baillargeon | 27 Jan 17:48 2015
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Public iperf 2 servers?

Hi

Does anyone know if there are any public servers supporting iperf2 (ideally iperf2.0.8)?

 

Any method to check the server iperf version remotely from the client?

 

Thank you

 

Steve B

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ASHISH KUMAR Dhanotiya | 21 Jan 06:51 2015
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Generating traffic

Is there any method through which I can generate traffic at specified time
Thank you
--
Ashish Kumar Dhanotiya

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Bob (Robert) McMahon | 19 Jan 18:57 2015

Re: Generate ARP Packets

Hi Krati,

 

Iperf does not support sending ARP floods.  ARP is done by the kernel/os and not at the application/iperf layer and only is needed once to build the initial ARP cache.   This is all done underneath iperf.

 

You can issue arp clears per the destination ip of an active iperf stream to cause the kernel to rebuild the arp cache.  It’s doubtful that the clears can be done fast enough to meet your needs.

 

Bob

From: Krati Jain [mailto:krati24jain <at> gmail.com]
Sent: Monday, January 19, 2015 8:42 AM
To: iperf-users <at> lists.sourceforge.net
Subject: [Iperf-users] Generate ARP Packets

 

Hello,

I am working in Software Defined Networking(SDN). I have Opendaylight controller, and created virtual topology of hosts and switches using mininet(network simulator). I wish to generate huge traffic (send large number of packets one at a time)  in the network using iperf, so that controller is loaded.

The only packets which go to controller is ARP requests or whoes flows is not defined in switch.

How should I generate such packets using iperf?

Thanks,

-Krati

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GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
http://p.sf.net/sfu/gigenet
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Krati Jain | 19 Jan 17:41 2015
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Generate ARP Packets

Hello,
I am working in Software Defined Networking(SDN). I have Opendaylight controller, and created virtual topology of hosts and switches using mininet(network simulator). I wish to generate huge traffic (send large number of packets one at a time)  in the network using iperf, so that controller is loaded.
The only packets which go to controller is ARP requests or whoes flows is not defined in switch.
How should I generate such packets using iperf?
Thanks,
-Krati
------------------------------------------------------------------------------
New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
http://p.sf.net/sfu/gigenet
_______________________________________________
Iperf-users mailing list
Iperf-users@...
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Gmane