Ooops - forgat to attach the doc. Here it is. Jerry Chin Guok wrote:
Hi all,
Here's an initial draft of the NSA functional components. There are some comments from Radek that I left inline for discussion.
Thanks.
- Chin
--On November 3, 2009 2:43:56 PM -0500 John Vollbrecht <jrv@internet2.edu> wrote:
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 recommendationrecomendation -- 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?] _______________________________________________ nsi-wg mailing list nsi-wg@ogf.org http://www.ogf.org/mailman/listinfo/nsi-wg
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