[Nsi-wg] Starting Assumptions for GNI API

[John Vollbrecht]

Thanks very much for sharing this.  I think it is very helpful.  I  
think it captures a number of issues very nicely.  I particularly like  
items 3 and 4 which I have had trouble stating as clearly.

John

On Aug 20, 2009, at 7:25 AM, Gigi Karmous-Edwards wrote:

> All,
>
> Here is a starting point for the list of assumptions for the NSI  
> API. I
> put these together for our GNI work in the GLIF GNI task force.  
> (please
> add/delete/modify them as necessary ) Initially the GNI is only
> implementing three basic calls:
>
> 1) CreateReservation
> 2) CancelReservation
> 3) ListReservations
>
> With these calls we agreed to the following assumptions:
>
>
> 1) Users/NSA should have information regarding the endpoints, such as
> the type of technology at the interface, and exact location (URI) -  
> this
> information should be available as either part of the request or the  
> NSA
> can look it up based on a URI.
> 2) The NSI API can be used by a client that is an end user/application
> requesting a multidomain lightpath from an NSA or it can be used by
> another (“ingress”) NSA making a specific request to a single NRM  
> for a
> partial path as part of a multidomain lightpath.
> 3) In some cases the user has a pre-defined chosen route or a  
> preferred
> next-hop, therefore the API should have feilds available for these two
> cases.
> 4) If the technology used at the two endpoints differ, then the NRM/ 
> NSA
> servicing the request is responsible for including technology
> adaptation. - The API does not explicitly request technology  
> adaptation,
> it is inferred.
> 5) It is assumed that the parameters will follow the NML working group
> language.
> 6) The API will not be used to exchange topology information.
>
> This is all I have at this point, I am sure the list should be longer.
>
> Kind regards,
> Gigi
>
>
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