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Re: [IPFIX] review of draft-ietf-ipfix-mib-variable-export-07

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Wed, 17 December 2014 15:48 UTC

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Date: Wed, 17 Dec 2014 16:48:24 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Paul Aitken <paitken@Brocade.com>
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Subject: Re: [IPFIX] review of draft-ietf-ipfix-mib-variable-export-07
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On Wed, Dec 17, 2014 at 04:05:52PM +0100, Paul Aitken wrote:
> Thanks for this Juergen. I'll produce an updated version for the editorial issues.
> 
> For the BITS issue, the largest IPFIX types are currently 64 bits (ie, signed64 / unsigned64). Although we could request a 128-bit type, we're simply moving the absolute limit along without solving the underlying issue.

SNMP encodes the bits into an octet string - an octetArray in
IPFIX. Could this be done here as well?
 
> Do you know what size the largest BITS object is today? Would it be
> acceptable to limit the size that can be exported in IPFIX to the
> first 64 or 128 bits?

The first question can't be answered so I can't answer the second. It
would be best, though, if IPFIX would not have to introduce a limit.
Would an octetArray not work?

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

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