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

Dear Tanja,

One quick remark (a thorough review should follow) regarding this I.E.

7.5.  fsFlowEntryTotalCount

    Description:

       This Information Element specifies the current number of all Flow
       Entries that form the parent population as input to the Flow
       Selection Process.

    Abstract Data Type: unsigned64

    ElementId: TBD5

    Status: Proposed

    Units: Flow Entries

In Cisco, years ago, we have defined the I.E. #3 with the same concept. 
It is used when we do router-based aggregation, which is exported with 
NetFlow version 8. It represents the number of flow that we're given as 
input to the router-based aggregation process.
See 
http://www.cisco.com/en/US/technologies/tk648/tk362/technologies_white_paper09186a00800a3db9_ps6601_Products_White_Paper.html 
(which btw, we're busy updating)

So this TBD5 should be 3.  Does it make sense?

Regards, Benoit.
> Hi all,
>
> we worked on a major revision of the flow selection draft and just submitted a new version (see below). Among other changes we now provide a much improved classification of methods, which is more consistent with the PSAMP packet selection documents.
> Many thanks to all who provided comments.
>
> Changes:
>   - Flow recording process removed
>   - Clarification of difference between flow selection and packet selection
>   - Distinguished flow filtering and flow sampling similar to PSAMP
>   - Flow selection in the metering process either before aggregation or after aggregation
>   - Integrated Flow-state dependent packet selection
>   - Supporting arbitrary  key space subsets with property match flow filtering
>   - Removed timestamp IEs for reporting
>   - Mediator integrated in first picture
>   - Configuration parameters and IEs redefined and re-named
>   - Many rewording, shortened several paragraphs to improve readability
>
> Kind regards
> Tanja
>
>
> -----Ursprüngliche Nachricht-----
> Von: ipfix-bounces@ietf.org [mailto:ipfix-bounces@ietf.org] Im Auftrag von internet-drafts@ietf.org
> Gesendet: Montag, 23. Mai 2011 11:21
> An: i-d-announce@ietf.org
> Cc: ipfix@ietf.org
> Betreff: [IPFIX] I-D Action: draft-ietf-ipfix-flow-selection-tech-06.txt
>
> A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the IP Flow Information Export Working Group of the IETF.
>
> 	Title           : Flow Selection Techniques
> 	Author(s)       : Salvatore D&#39;Antonio
>                            Tanja Zseby
>                            Christian Henke
>                            Lorenzo Peluso
> 	Filename        : draft-ietf-ipfix-flow-selection-tech-06.txt
> 	Pages           : 25
> 	Date            : 2011-05-23
>
>     Flow selection is the process of selecting a subset of flows from all
>     flows observed at an observation point.  Flow selection reduces the
>     effort of post-processing flow data and transferring flow records.
>     This document describes motivations for flow selection and presents
>     flow selection techniques.  It provides an information model for
>     configuring flow selection techniques and discusses what information
>     about a flow selection process should be exported.
>
>
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-ipfix-flow-selection-tech-06.txt
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-ietf-ipfix-flow-selection-tech-06.txt
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