Re: [Pce] I-D ACTION:draft-ietf-pce-inter-layer-req-01.txt

[[e-mail]]

hi eiji

the doc mentions

"     A request from a PCC to a PCE MUST allow control of the type of the 
     path to be computed by selection from the following list: 
     - A mono-layer path that includes already established lower-layer 
     LSPs "

i am not sure to really understand the constaint you are referring to, per 
RFC4206 there is no distinction between a TE link being an FA or TE link 
being not sustained by an FA hence the same would apply for the 
information gathered by the PCE

thanks for clarifying 
- dimitri.







Eiji Oki <[e-mail]>
03/03/2006 05:30
 
        To:     [e-mail]
        cc: 
        Subject:        Re: [Pce] I-D 
ACTION:draft-ietf-pce-inter-layer-req-01.txt


Hi all,

A new version of the inter-layer PCC-PCE communication requirements has
been published:
http://www.ietf.org/internet-drafts/draft-ietf-pce-inter-layer-req-01.txt

Main changes:
- Texts related to the applicability of PCEs for inter-layer path
computation were moved to the applicability draft,
http://www.ietf.org/internet-drafts/draft-oki-pce-inter-layer-app-00.txt
- Section 5.1.2: New requirements on control of the type of path to be
computed, were added. The definition of mono-layer path and multi-layer
path was moved here from original section 4.
- Several texts were re-written for the sake of clarity.

Any comments and suggestions are highly appreciated.

Thank you.
Eiji

On Thu, 02 Mar 2006 15:50:02 -0500
[e-mail] wrote:

> A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
> This draft is a work item of the Path Computation Element Working Group 
of the IETF.
> 
>                Title                           : PCC-PCE Communication 
Requirements for Inter-Layer Traffic Engineering
>                Author(s)               : E. Oki
>                Filename                : 
draft-ietf-pce-inter-layer-req-01.txt
>                Pages                           : 8
>                Date                            : 2006-3-2
> 
> The Path Computation Element (PCE) provides functions of path 
> computation in support of traffic engineering in Multi-Protocol 
> Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. 
> 
> MPLS and GMPLS networks may be constructed from layered service 
> networks. It is advantageous for overall network efficiency to 
> provide end-to-end traffic engineering across multiple network 
> layers. PCE is a candidate solution for such requirements. 
> 
> Generic requirements for a communication protocol between Path 
> Computation Clients (PCCs) and PCEs are presented in "PCE 
> Communication Protocol Generic Requirements". This document 
> complements the generic requirements and presents a detailed set of 
> PCC-PCE communication protocol requirements for inter-layer traffic 
> engineering.
> 
> A URL for this Internet-Draft is:
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