Subject: [sfc] Discussion on hidden SFC complexity (was RE: I-D Action: draft-ietf-sfc-problem-statement-03.txt)

From: <[email-masked]>
Date: Tue, 1 Apr 2014 13:44:36 +0200

Re-,

Service chaining will come with a cost.

The document may include a discussion on potential "hidden" complexity of service chaining. A typical hidden complexity is located at the "classifier": performance issues, complexity to manage entries in the classifiers, look-up delays, etc. 

The document should explicit some points that need to be included in the solution documents to help assessing to what extent these solution(s) solve the problems listed in the Problem Statement. 

Cheers,
Med

>-----Message d'origine-----
>De : sfc [mailto:[email-masked]] De la part de internet-
>[email-masked]
>Envoyé : mardi 1 avril 2014 12:38
>À : [email-masked]
>Cc : [email-masked]
>Objet : [sfc] I-D Action: draft-ietf-sfc-problem-statement-03.txt
>
>
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
> This draft is a work item of the Service Function Chaining Working Group
>of the IETF.
>
>        Title           : Service Function Chaining Problem Statement
>        Authors         : Paul Quinn
>                          Thomas Nadeau
>	Filename        : draft-ietf-sfc-problem-statement-03.txt
>	Pages           : 18
>	Date            : 2014-04-01
>
>Abstract:
>   This document provides an overview of the issues associated with the
>   deployment of service functions (such as firewalls, load balancers)
>   in large-scale environments.  The term service function chaining is
>   used to describe the definition and instantiation of an ordered set
>   of instances of such service functions, and the subsequent "steering"
>   of traffic flows through those service functions.
>
>   The set of enabled service function chains reflect operator service
>   offerings and is designed in conjunction with application delivery
>   and service and network policy.
>
>
>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-sfc-problem-statement/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-sfc-problem-statement-03
>
>A diff from the previous version is available at:
>http://www.ietf.org/rfcdiff?url2=draft-ietf-sfc-problem-statement-03
>
>
>Please note that it may take a couple of minutes from the time of
>submission
>until the htmlized version and diff are available at tools.ietf.org.
>
>Internet-Drafts are also available by anonymous FTP at:
>ftp://ftp.ietf.org/internet-drafts/
>
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