1. © 2006 Open Grid Forum Network Measurements Working Group Chairs:Eric Boyd Richard Hughes-Jones Mark Leese GGF18, Washington, 12 th Sepetember 2006, Session 1: 10:00-11:30

2. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 2 OGF IPR Policies Apply  “ I acknowledge that participation in this meeting is subject to the OGF Intellectual Property Policy. ”  Intellectual Property Notices Note Well: All statements related to the activities of the OGF and addressed to the OGF are subject to all provisions of Appendix B of GFD-C.1, which grants to the OGF and its participants certain licenses and rights in such statements. Such statements include verbal statements in OGF meetings, as well as written and electronic communications made at any time or place, which are addressed to: the OGF plenary session, any OGF working group or portion thereof, the OGF Board of Directors, the GFSG, or any member thereof on behalf of the OGF, the ADCOM, or any member thereof on behalf of the ADCOM, any OGF mailing list, including any group list, or any other list functioning under OGF auspices, the OGF Editor or the document authoring and review process  Statements made outside of a OGF meeting, mailing list or other function, that are clearly not intended to be input to an OGF activity, group or function, are not subject to these provisions.  Excerpt from Appendix B of GFD-C.1: ” Where the OGF knows of rights, or claimed rights, the OGF secretariat shall attempt to obtain from the claimant of such rights, a written assurance that upon approval by the GFSG of the relevant OGF document(s), any party will be able to obtain the right to implement, use and distribute the technology or works when implementing, using or distributing technology based upon the specific specification(s) under openly specified, reasonable, non- discriminatory terms. The working group or research group proposing the use of the technology with respect to which the proprietary rights are claimed may assist the OGF secretariat in this effort. The results of this procedure shall not affect advancement of document, except that the GFSG may defer approval where a delay may facilitate the obtaining of such assurances. The results will, however, be recorded by the OGF Secretariat, and made available. The GFSG may also direct that a summary of the results be included in any GFD published containing the specification. ”  OGF Intellectual Property Policies are adapted from the IETF Intellectual Property Policies that support the Internet Standards Process.

3. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 3 Agenda  Agenda bashing Note Takers Please  Review current documentation for Version 2 of the NMWG Schemata Check what we have is up to date  PerfSONAR update Eric & Martin  Discuss the proposal to make the Version 2 Schemata a GGF draft Recommendation.  Other discussion sessions: 13:30-15:00, Session 2 12 Sept 06 16:00-17:30, Session 3 12 Sept 06 16:00-17:30, Session 4 13 Sept 06  Presentation Session: 19:15-20:00 13 Sep 06

4. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 4 Documentation  Existing documentation: “NMWG Schema Developers Guide” Dan, Jason, Martin http://stout.pc.cis.udel.edu/nmwg/devguide.pdf http://stout.pc.cis.udel.edu/nmwg/devguide.pdf “How-to write your own schema” Dan www.gridforum.org/mail_archive/nm- wg/2005/02/pdf00001.pdf www.gridforum.org/mail_archive/nm- wg/2005/02/pdf00001.pdf Many.xml and.rnc files http://anonsvn.internet2.edu/svn/nmwg/trunk/nmwg/schema/ http://anonsvn.internet2.edu/svn/nmwg/trunk/nmwg/schema/

5. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 5 Agenda  Agenda bashing Note Takers Please  Review current documentation for Version 2 of the NMWG Schemata Check what we have is up to date  Discuss the proposal to make the Version 2 Schemata a GGF draft Recommendation.  Other discussion sessions: 13:30-15:00, Session 2 12 Sept 06 16:00-17:30, Session 3 12 Sept 06 16:00-17:30, Session 4 13 Sept 06  Presentation Session: 19:15-20:00 13 Sep 06

6. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 6 V2 Schemata  We propose to make the Version 2 Schemata a GGF draft Recommendation. Is there agreement? Are there alternative suggestions/proposals?  Existing Information: “ NMWG Schema Developers Guide” Dan, Jason, Martin http://stout.pc.cis.udel.edu/nmwg/devguide.pdf http://stout.pc.cis.udel.edu/nmwg/devguide.pdf “How-to write your own schema” Dan www.gridforum.org/mail_archive/nm- wg/2005/02/pdf00001.pdf www.gridforum.org/mail_archive/nm- wg/2005/02/pdf00001.pdf Many.xml and.rnc files http://anonsvn.internet2.edu/svn/nmwg/trunk/nmwg/schema/ http://anonsvn.internet2.edu/svn/nmwg/trunk/nmwg/schema/

7. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 7 V2 Schemata: Work needed  What work needs to be done? To the schemata: Corrections Additions For the Recommendation document itself: What form should the document take? Do we explicitly include the Base Schemata? What about common example schemata rtt/ping achievable throughput/ping … Definition of the Namespaces, nmwg probably yes what about the others we currently use?  How dependent is the Recommendation document on Relax NG?

8. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 8 V2 Schemata: Doc Structure Abstract 1.Introduction 2.Notational ConventionsSHOULD WOULD … Schemata Goals – separation; efficiency; scope request response re-usability XML, RELAX-NG, tools Namespaces Data and Metadata Base Schema: description and code nicely formatted timestamps, pre-defined elements Extension Schema defined (as in how to doc) Examples of full Schemata e.g. round trip delay; traceroute; TCP achievable BW What about Web services and WSDL?? N.Security Considerations N+1.Contributors N+2.Glossary N+3.Intellectual Property Statement N+4.Disclaimer N+5.Full Copyright Notice N+6.References

9. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 9 V2 Schemata: nmbase.rnc [1] namespace nmwg = "http://ggf.org/ns/nmwg/" include "nmtime.rnc" include "filter.rnc" ## A "message" or "store" element encloses ## everything. A message is mean to be ## transfered while a store is meant to ## stay in one place and be queried against. start = element nmwg:message { MessageContent } | element nmwg:store { StoreContent } MessageContent = Identifier? & MessageIdentifierRef? & Type & Parameters? &# new, needs to be discussed ( Metadata | Data )+ StoreContent = Identifier? & MessageIdentifierRef? & Type & Parameters? &# new, needs to be discussed ( Metadata | Data )+

10. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 10 V2 Schemata: nmbase.rnc [2] ## Metadata Section ## ---------------- ## These generic elements will be replaced by other elements in some other namespace that identifies the actual type and ## constraints we would like to store. The metadata contains both the subject and parameter blocks Metadata = element nmwg:metadata { Identifier & MetaIdentifierRef? & Subject? & ( Parameters | FilterParameters )? & Characteristic? &# new, needs to be discussed Key?# do we need the concept of a key in nmwg? } Subject = element nmwg:subject { SubjectContent } SubjectContent = Identifier & MetaIdentifierRef? Parameters = element nmwg:parameters { ParametersContent } ParametersContent = Identifier & Parameter+ Parameter = element nmwg:parameter { attribute name { xsd:string } & text } Characteristic = element nmwg:characteristic { xsd:string }

11. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 11 V2 Schemata: Admin  Suggested Timescales: Paper Recommendation draft 0 by next OGF19 Jan/Feb 07 ‘Almost ready’ Recommendation document OGF20 May 07  Involvement ? Coordination: Eric Boyd Richard Hughes-Jones – offer to edit Mark Leese The experts (need to be consulted) Dan Gunter Martin Swany Jason Zurawski More experts:

12. © 2006 Open Grid Forum NMWG GGF18 Washington September 2006 R. Hughes-Jones Manchester 12 Full Copyright Notice Copyright (C) Open Grid Forum (applicable years). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. The limited permissions granted above are perpetual and will not be revoked by the OGF or its successors or assignees.