Just to complete the sequence of referenced I-Ds...
http://www.ietf.org/internet-drafts/draft-ietf-pce-inter-layer-req-04.txt
discusses the requirements for multi-layer path computation (while
http://www.ietf.org/internet-drafts/draft-ietf-pce-inter-layer-frwk-03.txt
gives a framework for the use of PCE in a multi-layer network).
Section 5.1.3 of draft-ietf-pce-inter-layer-req-04.txt describes the
specific requirements that you mention for switching type. And section 5.1.4
discusses adaptation capabilities.
We have not, so far, added a requirement for encoding type and are not clear
whether this is a constraint that is necessary. We'd be interested to have
this discussion.
Before the Prague meeting, Eiji Oki started to put together the necessary
protocol extensions in support of this work, but we held off publication
because the base PCEP needed to advance a bit more. I guess this sounds like
the community is ready for this draft now.
Cheers,
Adrian
----- Original Message -----
From: "LE ROUX Jean-Louis RD-CORE-LAN" <[EMAIL PROTECTED]>
To: "Dan Li" <[EMAIL PROTECTED]>; "fabien.verhaeghe"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, March 28, 2007 11:18 AM
Subject: RE: [Pce] Switching type Constraint in PCEP
Hi Fabien,
The switching type/encoding type used to be carried in earlier versions of
PCEP
( GENERALIZED LABEL OBJECT in
http://www.watersprings.org/pub/id/draft-vasseur-pce-pcep-00.txt).
We decided to remove it from the base spec as this is application specific.
This will be covered in a separate document (for instance switching/encoding
type could be encoded in a optional TLV of the LSPA object).
Best Regards,
JL
________________________________
De : Dan Li [mailto:[EMAIL PROTECTED]
Envoyé : mercredi 28 mars 2007 11:36
À : fabien.verhaeghe; [EMAIL PROTECTED]
Objet : Re: [Pce] Switching type Constraint in PCEP
Hi Fabien,
There is a draft "draft-otani-ccamp-gmpls-cspf-constraints-05.txt" which may
relate to this issue. But the switching/encoding type may be considered as
an attribute of a TE-link, so I doubt it has something to do with the PCEP.
Regards,
Dan
----- Original Message -----
From: fabien.verhaeghe <mailto:[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Wednesday, March 28, 2007 4:56 PM
Subject: [Pce] Switching type Constraint in PCEP
Hi,
In RFC4657 one of the generic requirement concerns the support of
switching/encoding type constraint
for GMPLS.
Is there any ongoing work about this item?
Thanks
Fabien
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