[Isis-wg] Re: [Pce] Please comment on draft-ietf-pce-disco-proto-isis-07.txt

JP Vasseur <jvasseur@cisco.com> Tue, 25 September 2007 13:00 UTC

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From: JP Vasseur <jvasseur@cisco.com>
Date: Tue, 25 Sep 2007 08:59:48 -0400
To: Meral Shirazipour <meral.shirazipour@polymtl.ca>
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Cc: isis-wg@ietf.org, Jean-Philippe Vasseur <jpv@cisco.com>, pce@ietf.org, Jean-Louis Le Roux <jeanlouis.leroux@orange-ftgroup.com>, Acee Lindem <acee@redback.com>, Abhay Roy <akr@cisco.com>
Subject: [Isis-wg] Re: [Pce] Please comment on draft-ietf-pce-disco-proto-isis-07.txt
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Hi,

Some concerns were expressed by several individuals,
and OSPF WG chairs about the potential size of the PCED and more
recently issues were raised during IESG review because of the dynamic
nature of the CONGESTION TLV carried within the PCED TLV.

So the agreement we had was to:
1) Indicate in the document that no further sub-TLV will be added in the
future. Should there be a need to advertise more PCE capability, this  
can
still be part of the PCEP session establishment phase. *If* at some  
point,
there is a need to use the IGP to advertise more data, then this  
should be
done using the GENINFO TLV defined draft-ginsberg-isis-genapp
potentially using a different Is-IS instance and by using a new
Opaque LSA.
2) Remove the CONGESTION TLV from both documents.

The updated documents (rev 08) have just been posted and account for
these changes along with other comments that we received.

Thanks.

JP.

On Sep 14, 2007, at 5:36 PM, Meral Shirazipour wrote:

> Hi,
>     In draft draft-ietf-pce-disco-proto-isis-07 Section 4 Page 7,  
> it is
> mentioned:
> “
> No additional sub-TLVs will be added to the PCED TLV in the future.  
> If a future
> application requires advertising additional PCE information in IS- 
> IS, this will
> not be carried in the CAPABILITY TLV.
> “
> -Is there a technical reasoning behind this decision?
>
> -I would also change the last two words :” CAPABILITY TLV “ to “IS- 
> IS Router
> Capability TLV ([IS-IS-CAP])” to avoid any confusion with the PCE- 
> CAP-FLAGS
> sub-TLV :)
>
>
>
>     In draft draft-ietf-pce-disco-proto-ospf-07 Section 4 Page 7,  
> it is
> mentioned:
> “
> No additional sub-TLVs will be added to the PCED TLV in the future.  
> If a future
> application requires advertising additional PCE information in  
> OSPF, this will
> not be carried in the Router Information LSA.
> ”
> -Same question here.
>
>
> Warm Regards,
> Meral
>
>
>
>
>
>
>
> Selon Adrian Farrel <adrian@olddog.co.uk>:
>
>> Hi,
>>
>> http://www.ietf.org/internet-drafts/draft-ietf-pce-disco-proto- 
>> isis-07.txt
>> has recently been posted. The last couple of revisions addressed  
>> comments
>> raised by the IESG and by the IGP working group chairs, etc.
>>
>> This is a call to you for a further review of the I-D.
>>
>> We'll run with a two week deadline to 28th September.
>>
>> Many thanks,
>> Adrian
>>
>>
>>
>>
>> _______________________________________________
>> Pce mailing list
>> Pce@lists.ietf.org
>> https://www1.ietf.org/mailman/listinfo/pce
>>
>
>
>
>
>
> _______________________________________________
> Pce mailing list
> Pce@lists.ietf.org
> https://www1.ietf.org/mailman/listinfo/pce

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