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NSI issues and decision log
by Guy Roberts 27 Oct '09

27 Oct '09

Hi All, As discussed in Banff, I would like to create a log of issues and decision made by the group. I am hoping that this will streamline the decision making process. I have attached a first cut of this based on minutes from calls and discussions at Banff. There will be the usual conference call tomorrow, the first item on the agenda will be to review the structure for the architecture deliverable document. If/when we get through this I would like to review the issues log. Regards, Guy ------------------------------------------------------------------------------------------------------------------ Guy Roberts, Ph.D Network Engineering & Planning DANTE - www.dante.net<http://www.dante.net/> Tel: +44 (0)1223 371 316 City House, 126-130 Hills Road Cambridge, CB2 1PQ, UK ------------------------------------------------------------------------------------------------------------------

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minutes for meeting
by Guy Roberts 23 Oct '09

23 Oct '09

Hello All, The minutes for the NSI-WG meetings at OGF 27 are available here: http://forge.gridforum.org/sf/go/doc15801?nav=1 All of the presentations from the 5 NSI-WG sessions are also available in the same gridforge folder. Please feel free to update the minutes or send any updates/changes to me. Guy ------------------------------------------------------------------------------------------------------------------ Guy Roberts, Ph.D Network Engineering & Planning DANTE - www.dante.net<http://www.dante.net/> Tel: +44 (0)1223 371 316 City House, 126-130 Hills Road Cambridge, CB2 1PQ, UK ------------------------------------------------------------------------------------------------------------------

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call Wed 10/28
by John Vollbrecht 22 Oct '09

22 Oct '09

Just a heads up that we will have a call next Wed Oct 28 at 9ET. A revised table of contents for the Architecuture recommnendation will be sent out Tuesday. Tentatively we will have a call every other week after that. Let me know if this is a problem. We could reschedule a week later if that works better, for example. John

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The case for NSA PF
by Radek Krzywania 14 Oct '09

14 Oct '09

Hi all, As discussed, a short example of what could be an issue, if NSAs can control multiple domains and you do Pathfinding at NSA level, without knowledge of domains are really connected.

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Architecture slides for OGF this morning
by John Vollbrecht 13 Oct '09

13 Oct '09

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dinner
by Guy Roberts 13 Oct '09

13 Oct '09

Hello All, There will be a dinner at the Bison restaurant (in Banff town) for all NSI working group attendees on Tuesday evening. We will meet after the at the OGF registration desk at 7.00pm to go together into town. Guy ------------------------------------------------------------------------------------------------------------------ Guy Roberts, Ph.D Network Engineering & Planning DANTE - www.dante.net<http://www.dante.net/> Tel: +44 (0)1223 371 316 City House, 126-130 Hills Road Cambridge, CB2 1PQ, UK ------------------------------------------------------------------------------------------------------------------

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OGF: room change NSI-ETSI
by Freek Dijkstra 12 Oct '09

12 Oct '09

For those at the OGF today, Please note the room change for the NSI-ETSI meeting today: it is now in room DCH 30. (Now I still have to figure where the "Function 6" room is for NSI-WG and NML-WG tomorrow. It's not on the map...) Regards, Freek

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Brief call this morning
by John Vollbrecht 07 Oct '09

07 Oct '09

I will be on call for a few minutes if anyone is able to join Call: +1-734-615-7474 (Please use if you do not pay for Long Distance) or +1-866-411-0013 (toll free US/Canada Only) Enter access code: 0155180

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NSI-WG related sessions
by Guy Roberts 06 Oct '09

06 Oct '09

Hi All, Here is a agenda proposal for the 4 NSI-WG sessions next week at Banff. If you would like to add any topics, please let me know. Guy Tuesday 9.00am: Session 1 of NSI-WG meetings (90 mins) Session chairs: Guy Roberts, Tomohiro Kudoh, Inder Monga Guy Roberts to present introduction to NSI sessions and summarize activity since last meeting. John Vollbrecht to present a summary of status of architecture deliverable. Tuesday 11.00am Session 2 of NSI-WG meeting (90 mins) Session chairs: Guy Roberts, Tomohiro Kudoh, Inder Monga Joan Garcia-Espin/Tomohiro Kudoh to present on their work on NSI interface instances and NSA relationships. Guy Roberts to present discussion on handling technology specific aspects of service request. Wednesday 1.00pm Session 3 of NSI-WG meeting (90 mins) Session chairs: Guy Roberts, Tomohiro Kudoh, Inder Monga KDDI will present a use case for implementation of the NSI interface. This is proposed to be used as the basis for section 12 of the architecture deliverable. Discussion on next stage- The architecture deliverable has provided a platform for shaping the main concepts of the NSI into a set of requirements. The next stage is to develop these into a protocol definition. Nominations will be accepted for editors of deliverable 3 (NSI protocol definition). Nominations to be discussed. Wednesday 2.45pm: Session 4 of NSI-WG meeting (90 mins) Session chairs: Guy Roberts, Tomohiro Kudoh, Inder Monga Discussion of the structure and content of deliverable 3, NSI protocol definition. Wrap-up Two additional NSI related sessions have also been scheduled: Monday 4.30pm: NSI - ETSI meeting (90 mins) Session chair Guy Roberts Presenters: Guy Roberts and Stephan Schulz This session will explore the collaboration opportunities between NSI and the ETSI, in particular for the ETSI grid/cloud interoperability event. Wednesday 2.45pm: Web service tutorial (90 mins) I have requested this tutorial to help NSI and other new OGF participants understand how web services have been implemented in existing OGF standards. Due to the clash with session 4 of the NSI-WG meeting I have requested that this tutorial time be changed. ------------------------------------------------------------------------------------------------------------------ Guy Roberts, Ph.D Network Engineering & Planning DANTE - www.dante.net<http://www.dante.net/> Tel: +44 (0)1223 371 316 City House, 126-130 Hills Road Cambridge, CB2 1PQ, UK ------------------------------------------------------------------------------------------------------------------

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Re: [Nsi-wg] [Nml-wg] Meeting notes Sep.24
by Guy Roberts 02 Oct '09

02 Oct '09

Paola, As per agenda item 1, the NSI and NML working group time slots on Tuesday have now been swapped. Guy -----Original Message----- From: Paola Grosso [mailto:p.grosso@uva.nl] Sent: 24 September 2009 16:19 To: Network Markup Language Working Group Subject: [Nml-wg] Meeting notes Sep.24 Hi all These are the notes of the meeting that just terminated few minutes ago. Please send corrections to the mailing list if I got something wrong. In particular re-read point 3 on transitional links 'cause I am not sure I really got what people were saying. Best regards, Paola ******* Meeting notes NML-WG Thurs. Sep 24 2009 ******* Present: Gigi, Martin, Aaron, John, Jeff, Evangelos, Paola and Jeroen. Agenda items discussed: 1) OGF27 2) Current status of schema deliverable 3) Transitional links 4) Next meeting 1) OGF27 3 sessions requested. Currently on Tues. and Wed. morning. There is an outstanding request to move these sessions to the afternoon, so that NSI can be held in the morning. The last two sessions will focus on the _service_ and _adaptation_ elements in the schema. 2) Current status of schema deliverable Works is in progress: - Jeroen is incorporating changes mailed so far to the mailing list, - Freek is focusing on the identifiers and usecase sections - Jeroen will contact Lars as he is has been 'silent' for a while (Lars?) 3) Transitional links John, Guy, Jeroen and Freek had a call yesterday with ITU people. They discussed transitional links. Jeroen says there are three main usecases for the NML schema: (a) intra-domain provisioning, where detailed information is required by the provisioning system (b) monitoring applications (c) inter-domain path finding While the current schema covers well usecases (a) and (b), it is less suited for (c) as this requires aggregated/abstracted views. Evangelos proposes to use different identifiers for resources that are in the 'physical' and 'aggregated' topologies, with mapping withing the two sets of resources. Jeroen points out this might not work when dealing with multi-layer descriptions. Martin says that domain 'collapsing' to node is already possible in the current schema. A 'switching matrix' would be used to used to describe the capabilities of a domain, in a similar manner as it is used for a single node. The consensus is that we need to provide a usecase describing an aggregation/abstraction example. John thinks transitional links are necessary to describe connections between layers, and as such are needed by path finding apps. Jeroen and Martin say that transitional link map 1:1 to NML adaptations. They are an edge in the path finding graph. We cannot reach a consensus, so we agree that: - we need an usecase with multi-layer inter-domain path finding. This might (or not) prove John's point we _do_ need transitional links; - we will might touch on this subject again at OGF27 when discussing adapatations. 4) Next meeting. To be decided at OGF. _______________________________________________ nml-wg mailing list nml-wg(a)ogf.org http://www.ogf.org/mailman/listinfo/nml-wg

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