Subject: [Diffserv] Re: Behavior Aggregates - where next?

From: Brian E Carpenter <[email-masked]>
Date: Tue, 16 May 2000 15:42:55 -0500

Obviously, now we've decided to use the phrase Per-Domain Behavior
instead of BA (across domains), the attached is slightly out of date-
the definition of BA in RFC 2475 does not need to be updated.
The rest is still valid if you replace BA by PDB.

  Brian

Brian E Carpenter wrote:
> 
> Following the diffserv discussion in Adelaide, we would like to
> clarify the motivation and direction for the work on BAs.
> 
> Firstly, to clear out a terminology issue, the formal definition of
> a BA in RFC 2475 is slightly too restrictive and will require updating.
> 
> Secondly, the plan is to continue the bottom-up approach adopted
> from the start of the diffserv work. Having defined a set of PHBs,
> the next step is to identify and quantify the characteristics
> that packets belonging to a behavior aggregate will experience as
> they cross a DS domain. This can result in an edge-to-edge quality
> of service definition. Enterprise network managers, and many ISPs,
> need a range of such definitions with numeric parameters, as an aid
> to deploying diffserv in a useful way. The diffserv WG charter was
> recently updated in response to this need.
> 
> Thirdly, the intention now is to clarify
> draft-ietf-diffserv-ba-def-01.txt in view of the discussion.
> Also draft-ietf-diffserv-ba-vw-00.txt is a first draft of
> a "worked example" of a BA and it will undergo more revision.
> 
> Finally, other BA drafts related to the various standard PHBs,
> including the Class Selectors, are solicited.
> 
>    Brian and Kathie
>    diffserv co-chairs

-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Brian E Carpenter 
Program Director, Internet Standards & Technology, IBM 
On assignment for IBM at http://www.iCAIR.org 
Attend INET 2000: http://www.isoc.org/inet2000
Non-IBM email: [email-masked]

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