July 2016 - Nsi-wg - lists.ogf.org

no NSI conf call this week
by Guy Roberts 27 Jul '16

27 Jul '16

Next call is scheduled in a fortnight. Guy Guy Roberts PhD Senior Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 Networks • Services • People Learn more at www.geant.org<http://www.geant.org/> GÉANT is the collective trading name of the GÉANT Association in Amsterdam, NL, and of GEANT Limited in Cambridge, UK GÉANT Vereniging (Association) is registered in the Netherlands with the Chamber of Commerce in Amsterdam<http://www.kvk.nl/english/traderegister/default.asp>. Registration number: 40535155. Registered office: Singel 468 D, Amsterdam 1017 AW, The Netherlands GEANT Limited is registered in England & Wales. Registration number: 2806796. Registered office: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK.

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NSI call this week?
by Guy Roberts 27 Jul '16

27 Jul '16

Does anyone have any topics for an NSI conf call this week? Current status of the NSI documents is summarised here: https://docs.google.com/spreadsheets/d/1IWCltcKtNfh4Z532iGsJgCWygornkx2bH06… Guy Guy Roberts PhD Senior Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 Networks • Services • People Learn more at www.geant.org<http://www.geant.org/> GÉANT is the collective trading name of the GÉANT Association in Amsterdam, NL, and of GEANT Limited in Cambridge, UK GÉANT Vereniging (Association) is registered in the Netherlands with the Chamber of Commerce in Amsterdam<http://www.kvk.nl/english/traderegister/default.asp>. Registration number: 40535155. Registered office: Singel 468 D, Amsterdam 1017 AW, The Netherlands GEANT Limited is registered in England & Wales. Registration number: 2806796. Registered office: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK.

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NSI AA document ready to go to public comment
by Guy Roberts 25 Jul '16

25 Jul '16

Hello All, Thanks to Richard for his second review of the NSI AA document (as well as the review from Jens). We will address the outstanding issues on today’s NSI call. The marked up AA doc is available here: https://redmine.ogf.org/dmsf_files/13424 Comments by Richard: Most of the comments dealt with in a clear manner. Only two points remain: 1. How does the OE know the path and hence the Auth servers in advance of path computation? The assumption from John: “It is my assumption that a user community like LHCONE would use one authorization system and anyone using, or providing resource as part of, would use the same system.” May be valid but it really limits the general use of the standard. Somewhere in maybe section 7, or the intro, you need to have some lines outlining limitation/assumption and stating that the general case if for future study. 2. OAuth section seems to introduce new terminology. Guy Guy Roberts PhD Senior Transport Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 GÉANT Networks • Services • People Learn more at www.geant.org<http://www.geant.org/> GEANT Limited, trading as GÉANT. Registered in England & Wales. Registration Number 2806796. Registered Office – City House, 126-130 Hills Road, Cambridge CB2 1PQ

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Multi-domain SDN
by Guy Roberts 04 Jul '16

04 Jul '16

Hi All, Here is the CERNET/Internet2 view on how to solve the inter-domain SDN problem: http://netarchlab.tsinghua.edu.cn/~junbi/IEEEComMag-2015.pdf They are essentially proposing to use the ‘WE-bridge’ concept as a replacement of BGP. I see a lot of similarities to NSI, including a ‘abstracted topology’ that is similar to the NSI topology. I note also that they propose the WE-bridge should be able to exchange: “information such as OpenFlow version and number of the FlowTables on each node, link utilities, and flow entries, we extended the LLDP by adding an LLDP extension module.” I did have in mind that the MOTE open call (that GÉANT funded UvA to work on) would look at similar questions, however their work ended up focusing on developing a solution to the topology distribution challenge (this proved to be useful input to the NSI standard). I wonder if now would be a good time to start looking at flow-extensions to NSI? I think we should be able to do this by extending the NML topology and creating a new NSI service definition for flow based services. Any thoughts on this? Guy Guy Roberts PhD Senior Transport Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 GÉANT Networks • Services • People Learn more at www.geant.org<http://www.geant.org/> GEANT Limited, trading as GÉANT. Registered in England & Wales. Registration Number 2806796. Registered Office – City House, 126-130 Hills Road, Cambridge CB2 1PQ

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