[OT?] tcpdump overhead

[Mario Lobo]

On Monday 10 March 2008, you wrote:
> > I am writing a final paper for a PG course and  I need to take precise
> > measurements on network performance. I gonna be doing lots of packet
> > dumps and I would like to know you guys' opinion on how much of tcpdump
> > overhead (if meaningful for these measurements) I should take into
> > account.
> >
> > If there are any readings on the subject you could point me to...
>
> no idea but small for sure. it would rather cause tcpdump to not catch all
> packets that network performance drop.

Thanks for the reply Wojciech.

Forgive my english but I couldn't quite get what you meant by:

"it would rather cause tcpdump to not catch all packets that network 
performance drop."

Could you rephrase that for me please ?

Thanks
-- 
Mario Lobo
Segurança de Redes - Desenvolvimento e Análise
IPAD - Instituto de Pesquisa e Apoio ao Desenvolvimento Tecnológico e 
Científico