- Nsi-wg - lists.ogf.org

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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minutes from today's NSI conf call....
by Guy Roberts 29 Jun '16

29 Jun '16

…. are available here: https://redmine.ogf.org/dmsf_files/13535 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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NSI doc summary
by Guy Roberts 29 Jun '16

29 Jun '16

Here: https://docs.google.com/spreadsheets/d/1IWCltcKtNfh4Z532iGsJgCWygornkx2bH06… 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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Re: [Nsi-wg] Wednesday's NSI conf call
by Guy Roberts 29 Jun '16

29 Jun '16

Hello all, We will start the NSI call 30 minutes early today to allow Hans to join in. Chin – I realize this is very early in the morning for you, feel free to join at the usual time. Guy From: Guy Roberts Sent: 28 June 2016 16:43 To: nsi-wg(a)ogf.org Subject: Wednesday's NSI conf call The following is dial-in information for Wednesday's NSI call, time: 7:00 PDT 10:00 ET, 15:00 GMT, 16:00 CET, 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: - Review comments on the AA document by Richard H-J. Note: Richard’s comments will be sent out on the mailing list before the meeting. 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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Wednesday's NSI conf call
by Guy Roberts 28 Jun '16

28 Jun '16

The following is dial-in information for Wednesday's NSI call, time: 7:00 PDT 10:00 ET, 15:00 GMT, 16:00 CET, 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: - Review comments on the AA document by Richard H-J. Note: Richard’s comments will be sent out on the mailing list before the meeting. 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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NSI call Wednesday?
by Guy Roberts 28 Jun '16

28 Jun '16

Hi All, Does anyone have any issues to discuss on an NSI call tomorrow? If we want to keep in sync with the LHC p2p call, then the next NSI call will be on the 13th July. 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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NSI call minutes 1 Jun 2016
by Chin Guok 01 Jun '16

01 Jun '16

Hi all, The minutes from today's meeting have been posted ( https://redmine.ogf.org/dmsf_files/13533?download=) - Chin Chin Guok NOC: (510) 486-7600 Network Engineer (800) 333-7638 ESnet Network Engineering Group (AS293) Lawrence Berkeley National Laboratory

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NSI policy document now available for public commment
by Guy Roberts 31 May '16

31 May '16

Hello All, The NSI policy document is available to download and comment on here: https://redmine.ogf.org/projects/editor-pubcom/boards/37 Regards, 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/> [1458313942947_TNC16-signature-banner.gif]<https://tnc16.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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NFV-SDC'16 7-9 Nov 2016 in Palo Alto, California, USA
by Sill, Alan 26 May '16

26 May '16

Hi folks, I'm on the PC for the IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDC'16) 7-9 Nov 2016 in Palo Alto, California, USA. Please note that SC'16 is the following week in Salt Lace City, Utah 13-18 Nov., so one or the other of these events might be a good time for the NSI group and any other OGF groups working on networking and infrastructure to get together. The web site is http://nfvsdn2016.ieee-nfvsdn.org I note that the deadline for paper submissions for NFV-SDC'16 is 31 May 2016, and for demo/tutorial or panel proposals a couple of weeks later on 15 June. (Most submission deadlines for SC'16 are already closed, except for posters, showcases and BoFs.) Please let me know: (a) If there is any interest in organizing an NSI tutorial or demo or panel at this conference (b) If there is any interest In organizing an OGF working group meeting or other activity at either location (this conference or SC'16). Thanks, Alan

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review of draft-gfd-r-nsi-policy-public-commentv3_RHJ
by Hans Trompert 20 May '16

20 May '16

Dear NSI WG colleagues, I have read the version of the Policy document that was already reviewed by Richard and tried to assess if the document is sufficiently clear to actually implement the pathTrace extension in a aggregator or uPA. There are three things that are not completely clear to me yet. I agree with Richard that it is not clear how a uPA can determine the order number for its segment, especially in the tree scenario. It is stated in the document that an AG that has done additional path finding must assemble the child path in topological order, that sounds reasonable because the AG is the only one aware of the order of the segments and not the uPA, and what about other AG down the tree that do additional path finding and will return traces with more then one segment, is any AG allowed to renumber segments or lists of segments from its childeren before it sends the trace upstream? It is not clear to me if in any NSI deployment it is mandatory for all NSA to either do implement or do not implement the pathTrace extension or if it is allowed to have a mixed deployment. If the latter is allowed questions like the following come to mind: * what if an uPA does not implement the pathTrace extension, does an AG has to check the reserve.cf coming up if it contains an expected pathTrace? * what if an AG, not being the root AG, does not support the pathTrace extension, and lets assume that this AG does transparently forward all NSI header elements it does not know about, it cannot aggregate the pathTrace information from its childeren and can only at best collect all pathTrace's from its children and add them as separate traces to the reserve.cf going up * What if the root AG does not support pathTrace but a sub tree with an AG with an associated set op uPA does, then that sub tree AG will act as root AG and the uPA of that sub tree will only see part of the path in the rsvcommit.rq coming down and not the complete end to end path It is not clear to me if both an AG and uRA are allowed to terminate an reservation that has failed segments due to policy violations, or that we just trust on normal reserveCommit.fl processing and leave the termination of the request up to the uRA? Cheers, HansT.

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