Re: Minutes and Presentations from TEWG at IETF57

jim,

would you please rephrase:

 > Dmitri P: What new from hierarchy is crossing a region as opposed
 > to only a technology-driven interface from the hierarchy draft (??)

"Dimitri P: What's new here is the rules for crossing a region as
opposed to (as specified in the LSP hierarchy draft using the
switching capability field of the ISC descriptor sub-TLV) the
crossing of a technology boundary to form forwarding adjacencies
It would be worth to be expand on this."

note: i've asked this because in the case of ABR, AS's it is
clear, but for gmpls-overlay i would think that a clearer def.
for region crossing would be advisable ? this i-d mentions:

"The solution, therefore, also aims to be applicable to the GMPLS
overlay model ([GMPLS-OVERLAY]), where the client requesting the
LSP setup would belong to a region different from the core network
region."

Taking the following example is the boundary at the Edge_Node, the
Core_Node (or both) or at the Edge-to-Core boundary ?

Edge_Node --- Core_Node --- ... --- Core_Node --- Edge_Node

as notice in gmpls-overlay which refers to the lsp-hierarchy i-d
the former is assumed (since using the "technology boundary"
between the Edge and the Core node) thus should i infer here
that it refers to the Core_Node here (it seems to be the case,
from explanations received offline)? but clarifications wouldn't
hurt anyway

thanks,
- dimitri.
Jim Boyle wrote:

> They are available at wwww.pdnets.com/ietf/tewg/ietf57
> 
> thanks!
> 
> Jim
> 
> 

-- 
Papadimitriou Dimitri
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