[Nsi-wg] interim call tomorrow

John Vollbrecht jrv at internet2.edu
Tue Nov 3 13:43:56 CST 2009


We will have an interim call tomorrow.    My proposed agenda is to  
talk about work under way,   I suggest

1. Joan's slides modified from OGF
2. Review block diagram - from Tomohiro slides at OGF
3. Go over status -- my view of where we are is below.

I am hoping we can make some progress before SC, and then have  
sections 2,3, and 4.b, 4.h, 4.j. and part of section 5 available as  
candidate sections for the recomendation -- by the end of the year.   
We can talk about whether this seems possible.


My view if status -  please comment --

I am thinking that we need to make some progress on actual document in  
the next few weeks.  Progress for me will be to have some sections in  
place that are ready for detailed editing.

Section 1 - Summary and Abstract  [to be done]

Section 2 - Context and Motivation

I think we are close on the first part section 2 the context and  
motivation.    I keep thinking of some changes to it as I go along,  
but I think it is ok as a starting point for editing.
We are planning a second part of section 2 that describes service and  
transport planes and their relation to other planes.  I believe that  
Inder will propose something for that.

Section 3 - Concepts and Terminology

We have documentation that covers most of this.  However, in my view,  
after rereading in a couple times, it needs to be revised to  
correspond with the NSA model that we came up with in Banff,  
particularly the concepts of Agent Selection and Aggregation, and the  
naming of NSI server and client model.  I think we should talk this  
through on the call to be sure we all agree and I can rework the  
section.

I believe that the transport terms described in the second part of  
this section are ok for a version to be edited.  I will modify the  
order of some of this section when I do the first part.

Section 4 -- Architecture (details)
4.a Services offerred over NSI [hold till after 4.b]

4.b Block diagram of requestor and service agents
	This will build on diagrams from Tomohiro at OGF.  Chin has offerred  
to provide a first cut at all modules.  Many are are interested in  
helping to define this, including Chin, Radek, Tomohiro, Joan and  
others].  I believe the hope is that discussion on this can occur on  
the skype chat as well as on calls and email.
	I think that this is key to defining much of the rest of the  
document.  The blocks help define what is done by an  agent, and allow  
the agent to use interfaces other than NSI by some blocks.  It also  
helps explain the recursive nature of calls to other NSAs.  It also  
helps to clarify what a request needs to contain.
This is a NSA architecture section that provides context for the NSI  
interface

4.c Domain interaction --
As I think about this, which I believe Tomohiro proposed, I think it  
is meant to define what a domain is, especially relative to a NSA.  I  
am thinking this might better be called "recursive NSAs" or hierarchy  
imposed by aggregation module, or something else.  Any thoughts about  
that?

4.e Responsibiliy division between Management, Control, Transport, and  
Service Plane.
I am not sure how this will be different that section 2.2, except more  
detailed

4.f Security and Accounting (I have volunteered for a first cut at  
this, but not till earlier sections are farther along)

4.g. Deployment [of multiple NSAs] architecture [hold till earlier  
sections done]

4.h Messaging interaction [ Tomohiro has volunteered to take the lead  
on this]
	two phase commit (required or not), synchronous / asynchronous  
message triggers

        path description in reservations - I will take initial lead on  
this

4.i Request and Response messaging characteristics
	Resources (objects) and parameters, and their topology [Guy]

  Section 5  Imlementation and Deployment frameworks
	Overview [Joan, Tomohiro, John, Inder]
	Using NSI in othe models - GMPLS, GRID, GENI [John, Joan]
	Application examples of NSI - [KDDI, LHC, CoUniverse, other?]


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