[c-nsp] Netflow Version 9

Ziv Leyes zivl at gilat.net
Sun Jan 16 05:59:16 EST 2011


It was just a curiosity I was asking about.
If the progress over the years made older versions obsolete it's understandable, but then, I don't see why is 5 still there and then 9, why not 1,5,6 , then years later perhaps 5,6,7, and so on, and at the end, 8,9, for instance...
I mean, if 8 is obsolete, wouldn't 5 be "more" obsolete and die before?
Maybe I didn't get properly the differences between the versions, I need to get back to read more deeply...


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of ?ukasz Bromirski
Sent: Sunday, January 16, 2011 12:39 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Netflow Version 9

On 2011-01-16 11:00, Ziv Leyes wrote:
> I knew this is likely to be the answer I get, I was wondering why
 > in a Cisco device you can opt for ip flow-export version 1, 5 or 9,  > not all the other in between...

Wouldn't it be obvious? Some are long obsoleted and some made to work around limitations of specific architecture. The v9 was then made to get the best from flexibility. It doesn't make much more sense to keep the obsoleted templates in software and hardware just for someone to be able to get back in time a bit :)

-- 
"Everything will be okay in the end.  |                 Łukasz Bromirski
  If it's not okay, it's not the end." |      http://lukasz.bromirski.net
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