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@man.poznan.pl +48 61 858 20 28 Network Research and Development Department Poznan Supercomputing and Networking Center ____________________________________________
-----Original Message----- From: nsi-wg-bounces@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
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