Re: Comment on draft-shiomoto-ccamp-gmpls-mrn-reqs-00.txt

[dimitri papadimitriou <dpapadimitriou@psg.com>]

stephen, just to clarify, the slides discussed during this morning 
meeting explain the document'scope = multi-REGION-networks

where REGIONs are based on Switching Capability (SC) as being defined in 
the LSP hierarchy document:

<http://www.ietf.org/internet-drafts/draft-ietf-mpls-lsp-hierarchy-08.txt>

the discussion is not about data plane layering/relationship or other 
specific aspects related to the data plane layer architecture (ex: 
G.805), in brief, the discussion is all about control plane -> in the 
present context a multiple SC control plane

note: for those that where not present at the meeting the slides 
discussed can be found at:

<http://home.clara.net/olddog/61/draft-shiomoto-ccamp-gmpls-mrn-reqs-00.ppt>
---

Stephen Shew wrote:

> I was not able to be at the CCAMP meeting today but do have some comments on
> draft-shiomoto-ccamp-gmpls-mrn-reqs-00.txt     
>  
> It seems that the goals of the draft could be accomplished more simply by
> adopting the layer architecture as defined in ITU-T Recommendations G.805
> and G.809.  By doing this, the specific boundaries between TDM, LSC, etc.
> don't have to be articulated as they are just layer networks.  Also, the
> designation of TDM does not include the notions of the layers within that
> (e.g., DS3, STS-1, VC4, etc.) which are important to transport equipment.
> Adopting the layer architecture also enables a client layer to be supported
> by an inverse multipling layer such as provided by Virtual Concatenation.
> Here a layer of finer granularity is use to support a layer of coarser
> granularity.
>  
>
> Stephen Shew         Voice: 613-763-2462  Fax: 613-763-8385
> Nortel - Optical Networks  email: sdshew@nortelnetworks.com 
> P.O. Box 3511, Station C 
> Ottawa, ON K1Y 4H7 
>
>