Re: UDP Connection tuning questions regarding the -b and -l options
Jim Mozley wrote:
> So I need to script a wrapper to set the correct -b option given a -l
> value so I allow for the overhead, assuming I want a constant wire rate.
From a previous post
http://archive.ncsa.uiuc.edu/lists/iperf-users/jan03/msg00023.html I see
that "There is no way to really before hand compute the amount of
headers a piece of information will get covered with."
So setting -b for different lengths of buffer ( -l option ) is a trial
and error process and not something that can be calculated :-(. This
would explain why my calculations and observable results are different.
I'm guessing different operating systems and network card combinations
for the Iperf testers will behave differently in this regard.
Jim Mozley