[114331] in North American Network Operators' Group

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Re: Testing LFNs

daemon@ATHENA.MIT.EDU (Ricky Beam)
Wed May 6 16:38:33 2009

Date: Wed, 06 May 2009 16:38:19 -0400
To: "Kaegler, Mike" <KaeglerM@tessco.com>
From: "Ricky Beam" <jfbeam@gmail.com>
In-Reply-To: <0B0E2AC7-B426-46FE-A5E0-2F1C972C53A2@cs.cmu.edu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Wed, 06 May 2009 11:17:09 -0400, David Andersen <dga@cs.cmu.edu> wrote:
> Or test with UDP and blast as fast as you can so that you're not
> seeing TCP weirdness.

That's the best option... spew packets.  Just make sure they are as large  
as possible without needing fragmentation.

And if your setup can support it, set the ethernet MTUs to match the  
serial interface (4470).  Not that PPS should be an issue -- even an  
ancient NPE150 should be able to process switch enough packets to flood a  
T3.


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