[106320] in North American Network Operators' Group
Re: Software router state of the art
daemon@ATHENA.MIT.EDU (Florian Weimer)
Sat Jul 26 16:36:14 2008
From: Florian Weimer <fw@deneb.enyo.de>
To: "Dorn Hetzel" <dhetzel@gmail.com>
Date: Sat, 26 Jul 2008 22:35:56 +0200
In-Reply-To: <2ee691ff0807260441u79c2fef0p76bec3bae85792fd@mail.gmail.com>
(Dorn Hetzel's message of "Sat, 26 Jul 2008 07:41:21 -0400")
Cc: nanog list <nanog@merit.edu>
Errors-To: nanog-bounces@nanog.org
* Dorn Hetzel:
> Ok, it's probably a stupid question, but given the relative ease of
> putting 4gb+ ram on a 64bit platform, could packet per second
> performance be improved by brute forcing the route lookup as an array
> of 1 byte destination interface indexes for a contiguous swath of
> /32's from bottom to top?
8 bits per destination are not enough because you really want to put all
the necessary L2 information into the FIB. Perhaps even AS numbers, for
flow export.
