Re: [Dcpel] questions related to DCPEL scope

"Georgios Karagiannis" <karagian@cs.utwente.nl> Fri, 24 February 2006 12:49 UTC

Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FCcNe-0001O1-Eq; Fri, 24 Feb 2006 07:49:06 -0500
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FCcNd-0001Nw-OJ for dcpel@ietf.org; Fri, 24 Feb 2006 07:49:05 -0500
Received: from denhaag.ewi.utwente.nl ([130.89.10.11]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FCcNb-0001Ex-B7 for dcpel@ietf.org; Fri, 24 Feb 2006 07:49:05 -0500
Received: from utip105 (utip105.ewi.utwente.nl [130.89.13.76]) by denhaag.ewi.utwente.nl (8.13.1/8.13.1) with SMTP id k1OCmvJM014912; Fri, 24 Feb 2006 13:48:59 +0100 (MET)
Message-ID: <007d01c63940$ae5df080$4c0d5982@dynamic.ewi.utwente.nl>
From: "Georgios Karagiannis" <karagian@cs.utwente.nl>
To: "Kathleen Nichols" <nichols@pollere.com>
References: <PeqVqMLX.1140676112.7795150.karagian@ewi.utwente.nl> <43FE2D61.8050307@pollere.com>
Subject: Re: [Dcpel] questions related to DCPEL scope
Date: Fri, 24 Feb 2006 13:48:53 +0100
MIME-Version: 1.0
Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response
Content-Transfer-Encoding: 7bit
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.2180
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180
X-Spam-Score: -5.665 () ALL_TRUSTED,AWL,BAYES_00
X-Scanned-By: MIMEDefang 2.52 on 130.89.10.11
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0b5 (denhaag.ewi.utwente.nl [130.89.10.11]); Fri, 24 Feb 2006 13:49:00 +0100 (MET)
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 92df29fa99cf13e554b84c8374345c17
Cc: dcpel@ietf.org
X-BeenThere: dcpel@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Mailing list for possible diffserv control plane elements WG <dcpel.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/dcpel>, <mailto:dcpel-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www1.ietf.org/pipermail/dcpel>
List-Post: <mailto:dcpel@ietf.org>
List-Help: <mailto:dcpel-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/dcpel>, <mailto:dcpel-request@ietf.org?subject=subscribe>
Errors-To: dcpel-bounces@ietf.org

Hi Kathie

Please do not understand me wrong!
I am in favour of starting the DCPEL WG.
My concerns are related to the match between the DCPEL charter activities
and the work that has been by theITU-t, ETSI-tispan, DSL, packetcable, 3gpp, 
3gpp2,
ipshere, wimax  goups on the area of centralized control plane 
architectures.
I think that it is useful to start the work in DCPEL WG considering as 
starting point
the work that has been done already in the other groups.

Best Regards,
Georgios



----- Original Message ----- 
From: "Kathleen Nichols" <nichols@pollere.com>
To: "Georgios Karagiannis" <karagian@cs.utwente.nl>
Cc: <dcpel@ietf.org>
Sent: Thursday, February 23, 2006 10:47 PM
Subject: Re: [Dcpel] questions related to DCPEL scope


>
> Trimmed to reply (in-line) to your comments:
>
> Georgios Karagiannis wrote:
> ...
>>>
> [G]>>> Could you specify what do you mean by a distributed Difsserv 
> control
>>>> plane approach? Will this distributed approach impact an individual
>>>> Diffserv router, e.g., a Diffserv core router?
> [K]>> I'm just giving a short answer here. A distributed DiffServ control
>>> plane is one where the control plane actions do not reside in
>>> one physical location and probably not in one logical location.
>>> We would expect an impact on DiffServ edge routers, but probably
>>> not DiffServ core routers.
>>
>> Georgios: But I suppose that this will of depend on the specified PDBs.
>> What if a PDB requires a control plane support for a core Diffserv 
>> router?
>>
>
> If by core Diffserv router you mean a diffserv router interior to a
> domain, one would not normally expect the need for control of
> classifiers and policers, but just configuration of the PHBs as
> realized by queues and their scheduler, as described in RFC 2475
> and other diffserv documents. However, this doesn't preclude an
> operator from using the diffserv "edge" functions interior to a
> network if desired.
>
> ...
>> Georgios: Maybe it is very useful to perform an extensive state of the
>> art study on the area of centralized control plane architectures that
>> are developed in ITU-t, ETSI-tispan, DSL, packetcable, 3gpp, 3gpp2, 
>> ipshere, wimax. The outcome of this state of the art study could then
>> help to define
>> the final charter of the DCPEL BOF/WG.
>>
>
> Do you believe that the work of these groups obviates an IETF DCPEL WG?
>
> regards,
> Kathie
> 



_______________________________________________
Dcpel mailing list
Dcpel@ietf.org
https://www1.ietf.org/mailman/listinfo/dcpel