[67152] in North American Network Operators' Group

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Re: Strange public traceroutes return private RFC1918 addresses

daemon@ATHENA.MIT.EDU (Petri Helenius)
Tue Feb 3 13:47:36 2004

Date: Tue, 03 Feb 2004 20:43:52 +0200
From: Petri Helenius <pete@he.iki.fi>
To: Leo Bicknell <bicknell@ufp.org>
Cc: nanog@merit.edu
In-Reply-To: <20040203160216.GA95800@ussenterprise.ufp.org>
Errors-To: owner-nanog-outgoing@merit.edu


Leo Bicknell wrote:

>because at the higher data rates (eg 40 gige) it makes a huge difference
>in host usage.  You can fit 6 times in the data in a 9K packet that
>you can in a 1500 byte packet, which means 1/6th the interrupts, DMA
>transfers, ACL checks, etc, etc, etc.
>
>  
>
This is wrong. Interrupt moderation has been there for quite a while, 
DMA is chained and
predictive.

ACL checks I can agree on, but if you are optimizing the system, what do 
you need ACL´s
for anyway because you can make the applications secure in the first place?

Pete



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