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Re: [Nsi-wg] action items from call today
by Radek Krzywania 12 Aug '09

12 Aug '09

Hi, I've updated the PF examples with Data Plane and Control Plane names (yes, it took me some time :( ). I can prepare a more textual description with cases to make them more clear, if you wish to. Best regards Radek -- ____________________________________________ Radoslaw Krzywania radek.krzywania(a)man.poznan.pl +48 61 858 20 28 Network Research and Development Department Poznan Supercomputing and Networking Center ____________________________________________ > -----Original Message----- > From: nsi-wg-bounces(a)ogf.org [mailto:nsi-wg-bounces@ogf.org] On Behalf > Of Radek Krzywania > Sent: Tuesday, June 23, 2009 12:34 PM > To: 'John Vollbrecht'; 'NSI WG' > Subject: Re: [Nsi-wg] action items from call today > > Hi all, > In the attachment you will find PF examples. I've used term PCE as Path > Computation Element, which is standardized somewhere, but naming is > open. > It's not full list of cases, as there may be many permutations, but I > guess it may give an overview. The main issue is that the path provided > by PCE in the first domain, MAY or MAY NOT include details if each > domain along reservation path. Thus reservation process MAY include > some negotiations elements, where each domain will do local path > finding and provide a detailed path (or will just calculate it, and > keep hidden against other domains). > If a requested connection does not start in the user home domain (where > request was submitted), two scenarios are possible: > - domain will be responsible to manage the reservation, thus it will > not do local domain path computation, only the global one to define > reservation source domain. > - domain will delegate this responsibility to first domain on > reservation source path (may be more complicated in fact) > > Best regards > Radek > > -- > ____________________________________________ > Radoslaw Krzywania > radek.krzywania(a)man.poznan.pl > +48 61 858 20 28 > > Network Research and Development Department Poznan Supercomputing and > Networking Center ____________________________________________ > > > -----Original Message----- > > From: nsi-wg-bounces(a)ogf.org [mailto:nsi-wg-bounces@ogf.org] On > Behalf > > Of John Vollbrecht > > Sent: Wednesday, June 17, 2009 6:10 PM > > To: NSI WG > > Subject: [Nsi-wg] action items from call today > > > > The following are action items we agreed on today > > > > 1) Radek will send a set of use cases for pathfinding in different > > modes - distributed, central, separate requestor, -- > > 2) Joan may add additional use cases > > 3) John will do pictures for the use cases > > 4) Guy will include use cases in his UML diagrams > > 4) Guy consult with Tomohiro and Sebastien and others about diagrams > > 5) Joan will attempt to describe a request messages that includes > > anycast to start and have specific edgepoints in end result > > > > Did I miss anything? > > > > John > > > > _______________________________________________ > > nsi-wg mailing list > > nsi-wg(a)ogf.org > > http://www.ogf.org/mailman/listinfo/nsi-wg

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"optional" call Wed 8/12 at 9 ET
by John Vollbrecht 10 Aug '09

10 Aug '09

I apologize - I sent this to NML instead of NSI group - this is an NSI group call Wed - On Aug 10, 2009, at 12:48 PM, John Vollbrecht wrote: > We will have an optional call for discussing items in progress wed. > A week from tomorrow we will have a regular call. Both will use the > same call info > Call: +1-734-615-7474 (PSTN CALL-OUT DOES NOT WORK) or > +1-866-411-0013 (toll free US/Canada Only) > Enter access code: 0155180 > > Tentative agenda -- > > discuss relationships between NS agents - Joan, Tomohiro, Guy, John > discuss context for NSI -- Guy and others > discuss NML/ G.800 for NSI > > other? > > John >

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Today's NSI-WG conf call minutes
by Guy Roberts 10 Aug '09

10 Aug '09

Hello All, The minutes from today's conf call are now available on gridforge: http://forge.gridforum.org/sf/go/doc15739?nav=1 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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G.805/G.800 applied to NSI
by Guy Roberts 05 Aug '09

05 Aug '09

John, See my comments in your G.805/G.800 document. I think that applying G.800 to a NSI network example as you have done here is an interesting exercise. I think the G.800 is a good model that looks well thought through and fits the NSI requirement for a vendor independent network description. G.800 is diagrammatic oriented, as far as I understand the use of this is that it can be used as an object oriented model for creating a database that describes a network in a network management system (TMN principles). But what we really need is a description language that will allow this network model to be exchanged over the NSI interface. I guess the process of creating such a language is the role of the NML group. As far as I can see ITU-T does not have anything like this for G.800 (because it is an object oriented database model only?). Perhaps Freek can comment on this in tomorrow's call. 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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pointer to G.800 recommendation
by John Vollbrecht 04 Aug '09

04 Aug '09

http://www.itu.int/rec/T-REC-G.800/en The above is a pointer to the G.800 recommendation for transport networks. I had a hard tome finding it so I thought others might. It is the standards recommendation for describing a transport dataplane. It is the basis for what I described in attachment in the email I sent yesterday. John

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call Wed 9 ET
by John Vollbrecht 03 Aug '09

03 Aug '09

I sent the original message to the wrong group -- sorry - This is for an NSI call Wed. -- John Begin forwarded message: > From: John Vollbrecht <jrv(a)internet2.edu> > Date: August 3, 2009 1:29:53 PM GMT-04:00 > To: Network Markup Language Working Group <nml-wg(a)ogf.org> > Cc: John Vollbrecht <jrv(a)internet2.edu> > Subject: call Wed 9 ET > > We will have a call Wed at 9 ET. A suggested agenda - > > 1. status document and plans > 2. ITU G.800 description -- see attached doc for description - > would be good to have table that maps G.800 and NML/NSI names > 3. context description for standard > > Some thoughts for context > > 1 - intent is to support Network Service Requestors and Agents that > may interoperate in different infrastructure modes, specifically a > Grid or VO mode where requestor knows the topology that of set of > networks, and network centric where user makes a request and the > network determines how to satisfy it possibly using other > collaborating networks > > 2- difference with GMPLS and ASON -- how it fits > > 3 - uses ITU G.800 data plane concepts - may modify names slightly > > 4- relation to IETF PCE > > 5 - relation to PerfSonar and NML > > 6 - security capabilities and limits > > Call info > +1-734-615-7474 (PSTN CALL-OUT DOES NOT WORK) or +1-866-411-0013 > (toll free US/Canada Only) > Enter access code: 0155180 > > > John > >

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Last week's call - and No Calls in July
by John Vollbrecht 07 Jul '09

07 Jul '09

Based on schedules discussed at the last call, we will have no calls in July. The next call will be Wed August 5 at 9 ET. At the last meeting the main topic was how to proceed with creating a document with formatting appropriate for a Standard. We agreed to look into formatting for IETF RFCs, especially for content organization, as well as to OGF formatting requirements and templates. I will work on a revised document based on templates that I find. Some suggestions on the call were that we include Grid requirements from the user perspective as well as Networking requirements, and that this be done early in the document - perhaps as part of a context and scope section. Some people will continue to do ongoing work and share via email over the next month. One area being pursued is by Joan on describing how a set of NSIs interact in creating interdomain connections, how they relate trust-wise, and how they create shared topology and do pathfinding. There may be some informal calls about this over the month. If other call are desired, Internet2 could help by setting up a bridge. Let me know. On the call we decided to use content of the strawman as much as possible in the revised and restructured document. Any questions or corrections? John

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call tomorrow July 1
by John Vollbrecht 02 Jul '09

02 Jul '09

We will have a call tomorrow at 9 ET. The call info is Call: +1-734-615-7474 (PSTN CALL-OUT DOES NOT WORK) or +1-866-411-0013 (toll free US/Canada Only) Enter access code: 0155180 Agenda- discuss agenda - add items Discuss plans for next OGF- I will send out a couple sections of a proposed document in a couple hours which we could use as a discussion start. Discuss calls over the summer Discuss documents from Radek and Guy sent out last week Questions about use cases I sent to NML last week Use case status from Eduard and George suggestions or questions? John

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section of possible architecture doc
by John Vollbrecht 30 Jun '09

30 Jun '09

Attached are two sections of a proposed architecture document. They are based largely on the Strawman doc with lots of cleanup and changes. Some of the biggest changes are 1) including adaptations at NS resources 2) defining a segment as [payload, route, attributes] where route is [edgepoint - edgepoint] 3) ete connection == [user service payload, route, attributes] I realize that you won't have time to read this before the call tomorrow, but it might be good to do a quick intro to make reading easier. The last bit is a glossary. John

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ietf NETCONF group
by Guy Roberts 29 Jun '09

29 Jun '09

Hi all, Is anyone planning to go to ietf in July? I am interested in the NETCONF working group as this has some similarities with NSI (both are web service based interfaces for configuring networks). From reading the RFCs it seems to me that NETCONF describes a method for configuring individual routers/switches rather than generic network based service requests. It would be interesting to see if there is any opportunity to learn from their experience or even align our work. If anyone is planning to attend ietf please let me know. Thanks, 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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