Re: Iperf - packet size

[Marc Herbert <marc.herbert --at-- free.fr>]

On Mon, 7 Nov 2005, Ron Senykoff wrote:

> On 11/6/05, RSiffredi <rsiffredi --at-- verizon.net> wrote:
> >
> > Is it possbile to set the packet size with iperf?
> >
> > Thanks
> > Rocco
>
> -l for length
>
> -b 80Kb -l 200B
>
> This will set it to a bandwidth of 80Kbps with a 200 Byte packet size.

This is for UDP.

The user interface offered by TCP hides such details. The best (and
indirect) way to change the size of packets sent by TCP is IMHO to
change the MTU (maximum transmission unit) of your network interface.