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Re: [IPFIX] WG: I-D Action: draft-ietf-ipfix-flow-selection-tech-06.txt

Paul Aitken <paitken@cisco.com> Fri, 27 May 2011 14:12 UTC

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Date: Fri, 27 May 2011 15:12:07 +0100
From: Paul Aitken <paitken@cisco.com>
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To: Benoit Claise <bclaise@cisco.com>
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Subject: Re: [IPFIX] WG: I-D Action: draft-ietf-ipfix-flow-selection-tech-06.txt
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Benoit,

> See RFC5101
>
>  Metering Process
>
>       The Metering Process generates Flow Records.  Inputs to the
>       process are packet headers and characteristics observed at an
>       Observation Point, and packet treatment at the Observation Point
>       (for example, the selected output interface).
>
> Considering that there are no flows as input to the Metering Process, ...

A mediator may receive packets containing flow records from other exporters.

The number of flows contained in those those packets counts as a "packet 
characteristic" per the RFC 5101 definition above.

If the mediator wanted to report the number of bytes, packets, and flows 
which it observed, I'd expect it to use fields #1, #2 and #3.

P.

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