Re: [IPFIX] Last Call: <draft-ietf-ipfix-flow-selection-tech-14.txt> (Flow Selection Techniques) to Proposed Standard

[Benoit Claise <bclaise@xxxxxxxxx>]

Dear authors,

While reviewing draft-ietf-ipfix-mediation-protocol, Rahul got some feedback that actually concerns draft-ietf-ipfix-flow-selection-tech.
Can you please take this into account.

Regards, Benoit

Few comments.

1. Page 8: 
   1. The difference between "Intermediate Selection Process" and "Intermediate Flow Selection Process" is not clear. Is the first one selecting record purely on matching content (value of the fields) in the record and the second one selecting on matching attributes of the fields that are not part of the record in *addition* to matching content in the record? An example would help here.

BC> Granted, this is difficult to understand from the definitions only. There is some history behind these two separate definitions. Anyway, you get it right from your message above.
I was thinking to add to a section 2.1 "Differences between Intermediate Selection Process and Intermediate Flow Selection Process" in the draft-ietf-ipfix-mediation-protocol draft. However, thinking about it some more, this section should really be done in draft-ietf-ipfix-flow-selection-tech-14, to avoid some more confusion.
There is already section 3. "Difference between Intermediate Flow Selection Process and Packet Selection". Some more text should be added on the difference between Intermediate Selection Process and Intermediate Flow Selection Process

When created, draft-ietf-ipfix-mediation-protocol will refer to that new section.

1. 1. Also in the example " e.g., Filtering only records from a given network to a given Collector" - Does "given network" means "source-ip/source-prefix of the exporter"?.

BC> It means matching the flow records to a certain prefix/AS/you-name-it, and exporting those matched flow records to an exporter.
See for example, section 6.1 in RFC 6183
This could be explained better in the new section in draft-ietf-ipfix-flow-selection-tech (See previous point)

The IESG has received a request from the IP Flow Information Export WG
(ipfix) to consider the following document:
- 'Flow Selection Techniques'
  <draft-ietf-ipfix-flow-selection-tech-14.txt> as Proposed Standard

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@xxxxxxxx mailing lists by 2013-04-01. Exceptionally, comments may be
sent to iesg@xxxxxxxx instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

Abstract


   Intermediate Flow Selection Process is the process of selecting a
   subset of Flows from all observed Flows.  The Intermediate Flow
   Selection Process may be located at an IPFIX Exporter, Collector, or
   within an IPFIX Mediator.  It reduces the effort of post-processing
   Flow data and transferring Flow Records.  This document describes
   motivations for using the Intermediate Flow Selection process and
   presents Intermediate Flow Selection techniques.  It provides an
   information model for configuring Intermediate Flow Selection Process
   techniques and discusses what information about an Intermediate Flow
   Selection Process should be exported.





The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-ipfix-flow-selection-tech/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-ipfix-flow-selection-tech/ballot/


The following IPR Declarations may be related to this I-D:

   http://datatracker.ietf.org/ipr/1540/



_______________________________________________
IPFIX mailing list
IPFIX@xxxxxxxx
https://www.ietf.org/mailman/listinfo/ipfix