Measuring network throughput

barunparichha · 08-16-2007, 01:52 AM

hi,
i want to measure the UP and DOWN throughput between two machines including all overheads(due to protocol like TCP/UDP). I am using fedora core 6. I have already tried ethereal to measure the UP and DOWN byte counts, which is without adding overhead due to protocols like TCP.
So please tell me how i can find out my throughput.

With thanks in advance.

tajamari · 08-16-2007, 02:16 AM

Quote:

Originally Posted by barunparichha

hi,
i want to measure the UP and DOWN throughput between two machines including all overheads(due to protocol like TCP/UDP). I am using fedora core 6. I have already tried ethereal to measure the UP and DOWN byte counts, which is without adding overhead due to protocols like TCP.
So please tell me how i can find out my throughput.

With thanks in advance.

Try using iperf. http://dast.nlanr.net/Projects/Iperf/

Iperf command to use.

as server
command : iperf -s -u -i1
where:
-s - is for server
-u - udp traffic
-i - interval

as client
command : iperf -c your.ip.address -b2M -t360
where:
-c - client
-b2M - 2MB bandwidth
-t - time in seconds

You can look at the help file for your other options. Hope this helps.

barunparichha · 08-16-2007, 11:35 PM

hi tajamari,
thanks for ur quick reply.
But my requirement is that i have tcp connection between two machines and i want to transfer some file inbetween and then to findout the total packet in bytes going from and into the machine both directions separately.
So i think lperf will not help me.

Please suggest me if there is some alternate way to do so.
With thanks fro ur reponse again.

framp · 08-17-2007, 04:49 PM

Why don't you just use the difference of the result of ifconfig (TX bytes) before and after xmit of the data given there is no other traffic on the interface?

barunparichha · 08-21-2007, 11:18 AM

yea
measurment by "ifconfig" is one of the simplest and easiest way.
Thanks for your suggestion and help.