Re: [IPFIX] I-D Action:draft-ietf-ipfix-mediators-problem-statement-01.txt

[Atsushi Kobayashi <akoba at nttv6.net>]

Dear all,

We have written up the draft of -01 version problem statement draft.
Added sub-sections are mainly written based on some suggestions from
Benoit. Please take a look at it, and send me your feedback.

Following are the changes from -00 version.
http://www3.plala.or.jp/akoba/wdiff-ps00-ps01-final.html

---
Changes from -00 draft

Abstract

- Improved some wording and consistency
Wrote the functionality of IPFIX Mediation, not Mediator device

Section 1 Introduction
- Improved some wording and consistency

Section 2 Terminology

- Related terms of RFC5101 and I-D.ietf-psamp-protocol were added.
- Term "IPFIX Mediation" was added. I focused more on the IPFIX
Mediation function compared to -00 version. I removed the component
model in IPFIX Mediators, I will write them in framework draft.
- Definition "Flow-Based Collector Selection" was added.
- Some wordings and consistencies were improved.

Section 3 Flow-Based Mediation: Applicability Examples

- Sub-section title "Inter-domain IPFIX Exporting" was changed to "IPFIX
Export Across Domains".
- Sub-section title "Flow Distribution to Specific Collectors" to
"Rerouting Flow Records/Packet Reports".
- Sub-section "IPFIX Export from Branch Office" was added.
- Sub-section "Correlation of Flow Records/Packet Reports Information"
was added.
- Sub-section "Aggregation and Harmonization of Metering Process
Rules" was deleted. Because it seems duplicate of section 4.2.1.
- Some wordings and consistencies were improved.

Section 4 Approaches to Scalability

- Sub-section title "Exporting Aggregated Flows from Original
Exporters" was changed to "Flow Aggregation on Original Exporters".
This part was improved to more simplified explanation.
- Sub-section title "Hierarchical Model of Flow Aggregation" was changed
to "Flow Aggregation on IPFIX Concentrator".
- Sub-section "Time Composition" was added.
- Sub-section "Space Composition" was added.
- Sub-section title "Flow-Based Collector Selection" was changed to
"Distributing Load among Collectors". It was improved to more simplified
explanation and deleted the overlap part of section 3.4.
- Sub-section "Information Elements and Flow Keys Selection" was deleted. 
Because it seems duplicate of section 4.2.1.

Section 5 Problems with using IPFIX Mediators

- Some wordings and consistencies were improved.

Section 6 Conclusion

- Some wordings and consistencies were improved.

Regards,
Atsushi KOBAYASHI

On Fri, 26 Sep 2008 04:15:01 -0700 (PDT)
Internet-Drafts at ietf.org wrote:

> 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           : IPFIX Mediation: Problem Statement
> 	Author(s)       : A. Kobayashi, et al.
> 	Filename        : draft-ietf-ipfix-mediators-problem-statement-01.txt
> 	Pages           : 25
> 	Date            : 2008-09-26
> 
> Flow-based measurement is currently a popular method for various
> network monitoring usages.  The sharing of flow-based information
> among orthogonal monitoring applications raises open issues in terms
> of scalability, reliability and flexibility that IPFIX Mediation may
> help resolve.  IPFIX Mediation reroutes, replicates, filters,
> aggregates, correlates or modifies Flow Records or Packet Reports, or
> changes a transport protocol.  This document describes the
> applicability of IPFIX Mediation and the problems that IPFIX
> Mediation might encounter.
> 
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-ipfix-mediators-problem-statement-01.txt
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> Below is the data which will enable a MIME compliant mail reader
> implementation to automatically retrieve the ASCII version of the
> Internet-Draft.

--- 
Atsushi KOBAYASHI  <akoba at nttv6.net>
NTT Information Sharing Platform Lab.
tel:+81-(0)422-59-3978 fax:+81-(0)422-59-5637

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