- Nsi-wg - lists.ogf.org

WSDL restructing suggestions
by Henrik Thostrup Jensen 08 May '13

08 May '13

Hi Some of the messages are not entirely consistent with how they order attributes in, especially connectionId and globalReservationId. I'd like to suggest the connection id is always the first field (in the types where it exist). This would affect the following types AFAICT: - ReserveType - EventEnumType - GenericConfirmedType - GenericFailedType - ReservationInfoGroup - SummaryPathType - RecursivePathType The changes are purely cosmetic and have not semantic changes. In some of the notification messages the globalReservationId are also included. As the notification messags in NSI2 are always to the parent NSA (as we don't have a subscribtion interface) they are completely superflorours, and I suggest we remove those as well. Thoughts? Best regards, Henrik Henrik Thostrup Jensen <htj at nordu.net> Software Developer, NORDUnet

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State Machine Rename suggestions
by Henrik Thostrup Jensen 08 May '13

08 May '13

Hi, as promised on the call: RSM: Call Initial/Reserved for "Reserve Start" It is not an ideal name, but I think it is better than "Reserved". LSM: Call "Initial" for "Created" Was there a failed state being added to the LSM? If a circuit failes during activation, I cannot see any immediate way of of indicating it in the state machine (but maybe it is not supposed to). Best regards, Henrik Henrik Thostrup Jensen <htj at nordu.net> Software Developer, NORDUnet

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Agenda for call today
by Inder Monga 08 May '13

08 May '13

The main topics for discussion are: - Security section edits by Henrik - Update from John on the CS schema documentation - Should Schema description be in Appendix? I think it is a normative part of the standard and should go in the body of the NSI CS doc. - When it is possible to provision a connection? - Feedback from Hans Trompert (Surfnet). - Registration for Maastricht - how much time do we need? Thumb-typed on a mobile phone

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review of CS 2.0 documentation
by Hans Trompert 06 May '13

06 May '13

Hi, A little more than a month ago at SURFnet two developers started implementing the CS 2.0 specification. A lot of the logic can be deduced from the WSDLs, and John gave us an excellent presentation about CS 2.0 state machines and how things differs from 1.0. The slides John made have proven to be very useful while implementing but still leave a lot of questions on the detailed behavior open that only can be answered by proper documentation. I know that all of you are working very hard on creating this documentation and that's why I was thinking about how we can help. If you want we can review early versions of the documentation and give you feedback on that. Please let us know what you think. Cheers, HansT.

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minutes of today's NSI conf call...
by Guy Roberts 01 May '13

01 May '13

.... are available here: https://redmine.ogf.org/dmsf/nsi-wg?folder_id=6529 Guy _____________________________________________________________________ Guy Roberts PhD Senior Transport Network Architect DANTE Cambridge, UK +44 1223 371316 DANTE is the project co-ordinator and operator of GÉANT, the high-speed pan-European research and education network that is transforming the way researchers collaborate. Learn more at: www.geant.net<http://www.geant.net/> Like us on: www.facebook.com/GEANTnetwork<http://www.facebook.com/GEANTnetwork> Follow us at: www.twitter.com/GEANTnews<http://www.twitter.com/GEANTnews> DANTE is the trading name of Delivery of Advanced Network Technology to Europe Limited registered in England & Wales. Registration Number 2806796. Registered Office - 9400 Garsington Road, Oxford Business Park, Oxford OX4 2HN. _____________________________________________________________________

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Wednesday's NSI call
by Guy Roberts 29 Apr '13

29 Apr '13

Hi all, The following is dial-in information for Wednesday's NSI call. Time: 7:00 PDT 10:00 EDT, 15:00 BST, 16:00 CEST, 23:00 JST 1. Dial Toll-Free Number: 866-740-1260 (U.S. & Canada) 2. International participants dial: Toll Number: 303-248-0285 Or International Toll-Free Number: http://www.readytalk.com/intl 3. Enter 7-digit access code 8937606, followed by "#" Agenda: - Updates on preparation of the NSI v2.0 document. - Reservation versioning and state machine - runtime schema validation - Removal of globalReservationId from the GenericConfirmedType. - Removal of the GenericConfirmedType and GenericRequestType. _____________________________________________________________________ Guy Roberts PhD Senior Transport Network Architect DANTE Cambridge, UK +44 1223 371316 DANTE is the project co-ordinator and operator of GÉANT, the high-speed pan-European research and education network that is transforming the way researchers collaborate. Learn more at: www.geant.net<http://www.geant.net/> Like us on: www.facebook.com/GEANTnetwork<http://www.facebook.com/GEANTnetwork> Follow us at: www.twitter.com/GEANTnews<http://www.twitter.com/GEANTnews> DANTE is the trading name of Delivery of Advanced Network Technology to Europe Limited registered in England & Wales. Registration Number 2806796. Registered Office - 9400 Garsington Road, Oxford Business Park, Oxford OX4 2HN. _____________________________________________________________________

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Reserved State Machine
by Henrik Thostrup Jensen 29 Apr '13

29 Apr '13

Hi I think some of the confusion around the Reservation State Machine (RSM) comes from that a connection can have multiple revisions and that each revision can actually go through the states. This makes it very tricky to have a state machine that works across multiple revisions. A better approach might be to have an RSM per revision. I have attached a PDF of how I think such a state machine could look. Reserve_Aborted is now a stable state, indicating that the revision has failed. A new revision can be started from all stable states. This makes it very clear where each revision is in its lifecycle. There could be a state after Reserve_Committed to indicate that the reservation has been superseeded by a new revision, but since we probably wouldn't expose that, I don't think it is strictly needed. The Provision State Machine (PSM) and Lifecycle State Machine (LSM) should be per connection. On a side note: I think having 2PC will create more problems than it solves, as getting that to work in a multi-domain environment is going to be very tricky. Best regards, Henrik Henrik Thostrup Jensen <htj at nordu.net> Software Developer, NORDUnet

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WSDL changes
by John MacAuley 25 Apr '13

25 Apr '13

Peoples, As I go through the documentation process, and we finalize some of the last open items, we will be sending e-mail requesting approval. It would be appreciated if you could please make it a priority to provide feedback as soon as possible so we can get resolution and move forward. Henrik has requested the removal of "globalReservationId" from the GenericConfirmedType since it is a convenience element only. I have no issue with the proposed change but want to make sure no design teams are using the capabilities. At the bottom of the e-mail is the component that will be modified. In addition, Henrik has proposed the collapse of the GenericConfirmedType and GenericRequestType to remove the separate type wrapper and make the impacted messages of type ConnectionIdType. For example, the provision message set would not be defined as the following: <xsd:element name="provision" type="tns:ConnectionIdType" /> <xsd:element name="provisionConfirmed" type="tns:ConnectionIdType /> So I am asking for approval on the following two items: 1. Removal of globalReservationId from the GenericConfirmedType. 2. Removal of the GenericConfirmedType and GenericRequestType. Thanks, John <xsd:complexType name="GenericConfirmedType"> <xsd:annotation> <xsd:documentation xml:lang="en"> This is a generic type definition for a "Confirmed" messages in response to a successful processing of a previous "Request" message such as provision, release, and terminate. Elements: globalReservationId - An optional global reservation id that was originally provided in the reserve request. connectionId - The Provider NSA assigned connectionId for this reservation request. This value will be unique within the context of the Provider NSA. </xsd:documentation> </xsd:annotation> <xsd:sequence> <xsd:element name="globalReservationId" type="tns:GlobalReservationIdType" minOccurs="0" /> <xsd:element name="connectionId" type="tns:ConnectionIdType" /> </xsd:sequence> </xsd:complexType>

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Today's NSI conf call minutes
by Guy Roberts 24 Apr '13

24 Apr '13

... are available here: https://redmine.ogf.org/dmsf/nsi-wg?folder_id=6529 _____________________________________________________________________ Guy Roberts PhD Senior Transport Network Architect DANTE Cambridge, UK +44 1223 371316 DANTE is the project co-ordinator and operator of GÉANT, the high-speed pan-European research and education network that is transforming the way researchers collaborate. Learn more at: www.geant.net<http://www.geant.net/> Like us on: www.facebook.com/GEANTnetwork<http://www.facebook.com/GEANTnetwork> Follow us at: www.twitter.com/GEANTnews<http://www.twitter.com/GEANTnews> DANTE is the trading name of Delivery of Advanced Network Technology to Europe Limited registered in England & Wales. Registration Number 2806796. Registered Office - 9400 Garsington Road, Oxford Business Park, Oxford OX4 2HN. _____________________________________________________________________

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Wednesday's NSI call
by Guy Roberts 23 Apr '13

23 Apr '13

Hi all, The following is dial-in information for Wednesday's NSI call. Time: 7:00 PDT 10:00 EDT, 15:00 BST, 16:00 CEST, 23:00 JST 1. Dial Toll-Free Number: 866-740-1260 (U.S. & Canada) 2. International participants dial: Toll Number: 303-248-0285 Or International Toll-Free Number: http://www.readytalk.com/intl 3. Enter 7-digit access code 8937606, followed by "#" Agenda: - Updates on preparation of the NSI v2.0 document. - Synchronous query usage - Reservation versioning and state machine - Subscribing to notifications _____________________________________________________________________ Guy Roberts PhD Senior Transport Network Architect DANTE Cambridge, UK +44 1223 371316 DANTE is the project co-ordinator and operator of GÉANT, the high-speed pan-European research and education network that is transforming the way researchers collaborate. Learn more at: www.geant.net<http://www.geant.net/> Like us on: www.facebook.com/GEANTnetwork<http://www.facebook.com/GEANTnetwork> Follow us at: www.twitter.com/GEANTnews<http://www.twitter.com/GEANTnews> DANTE is the trading name of Delivery of Advanced Network Technology to Europe Limited registered in England & Wales. Registration Number 2806796. Registered Office - 9400 Garsington Road, Oxford Business Park, Oxford OX4 2HN. _____________________________________________________________________

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