Software router state of the art

Charles Wyble charles at thewybles.com
Wed Jul 23 10:36:31 CDT 2008


Valdis.Kletnieks at vt.edu wrote:
> On Wed, 23 Jul 2008 02:52:56 PDT, Zed Usser said:
>   
>> There's been some discussion on the list regarding software routers
>>     
>
> The performance of "software routers" has always had a hardware component.
>
> Basically, for the vast majority of them, take your PCI bus bandwidth,
> count how many times a packet has to cross it, and do the math.  You can't
> forward more than that much traffic no matter *what* software you run on
> that box.  If that number falls short, stop right there and look for
> some box of different design that has the required backplane bandwidth.
>   

This might be of interest:

http://nrg.cs.ucl.ac.uk/mjh/tmp/vrouter-perf.pdf


-- 

Charles Wyble (818) 280 - 7059
http://charlesnw.blogspot.com
CTO Known Element Enterprises / SoCal WiFI project





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