June 2014 - Nsi-wg - lists.ogf.org

Re: [Nsi-wg] [NSI imp] Reachability-based topology suggestion
by Chin Guok 24 Jun '14

24 Jun '14

Hi Henrik, Thanks for the response. On Wed, Jun 4, 2014 at 1:04 AM, Henrik Thostrup Jensen <htj(a)nordu.net> wrote: > Hi Chin > > Thanks for reading. > > > On Tue, 3 Jun 2014, Chin Guok wrote: > > Thanks for writing this up. I had a few comment and questions about your >> proposal. Let me know if >> you need clarification on any of them. >> >> - I think adding structure to the STP so that it can be parse would be >> useful >> - it would be ideal if we could devise a schema that resulted in the >> same networkID and localID >> irrespective of the parsing direction (e.g. L->R or L<-R), however I am >> doubtful >> > > Well you have to start the parsing somewhere :-). But yeah, usually one > parses from the left, the scheme presented parses from the right, but it > was the simplest we could do considering that people will often have more > than just domain+year in the network part. > > > - considering that the networkID has to be unique, but the localID does >> not, we should be rigid >> about the structure of the networkID, but flexible on the localID >> > > I agree with this, and I think this is already the case (except for not > allowing ':' in the local part). > > But I don't see the question/point here. > > > - John came up with something in Oxford, maybe we could revisit that >> > > The schema John suggested had a lot of rules for naming everything. But > the reason for why everything had to be named explicitely was missing. We > are only adding rules for what we need. I think we are all in sync on what we want to achieve, it's just working out the details. I would say that I do like your comment of being about to use just the networkID portion for the ERO, I think it is a very useful construct. > > > - Bi-directional is convenient and practical, but I can see the need for >> unidirectional topology >> modelling if there is a need to support non-congruent or asymmetric >> circuits >> > > Sure. But the topology scheme presented here doesn't really care about it. > In fact, it works perfectly fine with both. But the point of the model is > that it cares more about the networks and their adjcency than their > internal details and structure. > > I just don't like the way NML makes bidirectional way more complicated > than it needs to be. I cannot see any reason why unidirectional and > bidirectional constructs cannot both be first-order constructs. > > > - Is the reachability information part of the topology >> > > I am not sure what you mean with topology here. > > But it is NOT part of the NML topology (in fact, the scheme doesn't > require NML at all). > > > , or can it leverage the "peers with" >> information in the NSA Description Document? >> > > Peers with is about control-plane. We are advertisting data-plane > reachability. Also peersWith cannot really be extended. It is pretty much > just a list in XML. >From what I understand, what you are proposing is to extended the NSA Description Document to include your reachability information. Or are you thinking that this should go into the NSA Topology Document? > > > - With cost factoring, if a network peers with another network at >> multiple points, is there a way to >> model multiple costs in the reachability info (or is it only a single >> cost between two networks) >> > > Not really. This requires either vectors, or some form of link-state > routing. > > Technically one could list a network multiple times in the reachability > information, but I cannot really see how that would improve anything. > > > - If the control and data plane have to be congurent, how does this >> affect Aggregators (that do not >> have a dataplane) >> > > Aggregators without data-plane are largely useless. However... I would have to disagree here. I could foresee project or application specific Aggregators being setup to enforce policy enforcement and path finding. For example, an LHCONE Aggregator to enforce LHC user policy (e.g. ATLAS, CMS, etc), as well as path finding. With the current peer-to-peer trust model, having such Aggregators also make it convenient (e.g. knowing a request is from LHC based on the Aggregator request). > > - For example if the ESnet uPA only had relationships with the ESnet >> AG and I2 AG: >> > > In that case I would just have the ESnet AG present the ESnet networkId as > its own. Should work fine. The I2 AG would probably just announce > reachability. > > The model does not do well with the disjunct control and data plane, and > the cross setup in this case. However this is fundamental to the chaining > model. > > I am not entirely sure who "you" is in the next questions. The "you" refer to other NSAs. > > > - what information will you pull from the ESnet uPA, >> - what information will you pull from the ESnet AG, >> - what information will you pull from the Internet2 AG, >> > > But essentially: You only pull discovery and reachability information from > your (aggregation) peers. That is the _ONLY_ information that gets pulled > in this model. > > - how will the above affect the path finding in your scheme >> > > It will work, assuming: > > The UPA-only networks are only at the edges (meaning that all the transit > networks have an aggregator) > > What won't really work is being able to use the I2 AG to connect to the > ESnet network. One will have to contact the aggregator responsible for the > network (the ESnet AG, assuming we do the networkId proxying) to setup a > path through the ESnet network. One of the fundamental decisions of the NSI-WG is to support generic tree workflows. This implies that the control and data plane peerings can be distinct. Are there enhancements to your scheme that you could propose to maintain the NSI-WG's support for tree workflows? If not, then we need to figure out how we can reconcile this with the NSI framework. Thanks again! - Chin > > > > Best regards, Henrik > > Henrik Thostrup Jensen <htj at nordu.net> > Software Developer, NORDUnet > -- Chin Guok NOC: (510) 486-7600 Network Engineer (800) 333-7638 ESnet Network Engineering Group (AS293) Lawrence Berkeley National Laboratory

2 1

Fwd: REMINDER | Intelligent Optical Network Infrastructure Workshop_Sill
by Sill, Alan 23 Jun '14

23 Jun '14

Dear NSI-WG and related OGF networking experts, Please see the call below. Is anyone available from the NSI or related groups who would like to make a contribution to this workshop? Although this was addressed to me, I will take that as being a proxy for your expertise in this area. (Note Inder also received such an invitaton, so they weren't too far off the mark!) Alan Begin forwarded message: From: "Terry, Deneise" <Deneise.Terry(a)orau.org<mailto:Deneise.Terry@orau.org>> Subject: REMINDER | Intelligent Optical Network Infrastructure Workshop_Sill Date: June 23, 2014 at 2:24:23 PM CDT To: "Alan.Sill(a)ttu.edu<mailto:Alan.Sill@ttu.edu>" <Alan.Sill(a)ttu.edu<mailto:Alan.Sill@ttu.edu>> Cc: "Rao, Nageswara S" <raons(a)ornl.gov<mailto:raons@ornl.gov>>, Inder Monga <imonga(a)es.net<mailto:imonga@es.net>>, "Tom Lehman" <tlehman(a)umd.edu<mailto:tlehman@umd.edu>>, John Wu <kwu(a)lbl.gov<mailto:kwu@lbl.gov>>, "Thomas.Ndousse-Fetter(a)science.doe.gov<mailto:Thomas.Ndousse-Fetter@science.doe.gov>" <Thomas.Ndousse-Fetter(a)science.doe.gov<mailto:Thomas.Ndousse-Fetter@science.doe.gov>>, "Cagle, Keri" <Keri.Cagle(a)orau.org<mailto:Keri.Cagle@orau.org>> Dear Dr. Sill Within the past few weeks you should have received an invitation to the US Department of Energy, Intelligent Optical Network Infrastructure Workshop that will be held at the Hilton Washington DC North/Gaithersburg in Gaithersburg, Maryland, August 5-6, 2014. If you are planning to attend, we ask that you please use the link below to register as soon as possible. The dramatic advances in computing hardware and the pervasiveness of BigData in all sectors of the economy including scientific research are increasingly pushing the limits of modern communication networks. For organizations, and especially the scientific community to take full advantage of these rapid advances to accomplish mission objectives, communications networks have to be reengineered to provide sophisticated services and to deal with emerging constraints such as energy, resilience, and traffic complexities. The purpose of this workshop is to bring together experts from academia, industry, and national laboratories to accomplish the following tasks: a) assess current network technologies in light of extraordinary advances in computing technologies and the emergence of Big Data, and b) identify the challenges and opportunities in transforming current network technologies to provide intelligent and automated services to accelerate scientific discoveries in the era of distributed extreme-scale computing and pervasive data-centric science. The workshop will begin on Tuesday, August 5, 2014 at 8:00 a.m. and will end on Wednesday, August 6, at 5:00 p.m. A continental breakfast will be served at 7:30 a.m. Please let us know if you have any dietary restrictions. As an expert in fields related to Intelligent Optical Networks and Applications, your contributions would be of significant value and greatly appreciated. Please reply to this invitation by June 30, 2014 to help us plan for the workshop agenda. Workshop Registration: Note that due to space limitations and the very short time to prepare for this meeting, we will be able to honor the only first 50 registered invitees, so please register as soon as possible at the registration website: http://www.orau.gov/ioninfrastructure2014/ Hotel Reservations: Reservations can be made by calling: 1-800-HILTONS (445-8667) or Hotel Reservation Site<http://www.hilton.com/en/hi/groups/personalized/G/GAIGHHF-ORA-20140802/inde…> Cut-off date is Monday, July 14th Registration Fee: A registration fee of $90 includes the cost of breakfast and lunch each day. Please submit payment via the link that is provided on the registration page of the website. The site accepts Visa, MasterCard, American Express, and Discover. If you prefer not to submit payment electronically, please be prepared to pay the $90 registration fee at check in. Only cash or checks made payable to ORAU will be accepted on site. We look forward to your participation. Point of Contact: Thomas Ndousse-Fetter, Thomas.ndousse-Fetter(a)science.doe.gov<mailto:Thomas.ndousse-Fetter@science.doe.gov> Many Thanks, Deneise Terry *: 865) 576-0574 | 7: 865) 241-3168 | *: Deneise.Terry(a)orau.org<mailto:Deneise.Terry@orau.org>

1 0

hotel booking for NORDUnet conference and NSI meeting.
by Guy Roberts 18 Jun '14

18 Jun '14

Hi All, This is a reminder that if you plan to attend the NORDUnet conference you should be booking your hotel soon! See details below. Guy --- Dear all This is just a note to encourage you to book your accommodation in Uppsala for the NORDUnet conference as soon as possible, if you have not already done so. We do have some block bookings at the various hotels, however, they expire early to mid-August. You can check the individual dates in the hotel section of the conference web The hotels have not had very many bookings from NDN2014 participants and have asked for the possibility that we can release some hotel rooms for them already now since there are a number of other events running in parallel to our conference for which they are short of rooms. I will of course hang on to our reservations according to our agreement, however, it does mean that after the expiry dates it will be very difficult to get a hotel room, and prices will not be attractive. Please help spread the word. Do not hesitate to contact me if you have any questions. Thanks and best regards Susanne Susanne Michelsen NORDUnet A/S Kastruplundgade 22,1 DK - 2770 Kastrup Mobile: +45 26 81 62 13 E-mail: susanne.michelsen(a)nordu.net<mailto:susanne.michelsen@nordu.net> http://www.nordu.net _____________________________________________________________________ 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. _____________________________________________________________________

1 0

minutes from today's NSI conf call...
by Guy Roberts 18 Jun '14

18 Jun '14

.... are available here: https://redmine.ogf.org/dmsf_files/13266 _____________________________________________________________________ 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. _____________________________________________________________________

1 0

today's NSI conf call
by Guy Roberts 18 Jun '14

18 Jun '14

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: - review Hans proposal for NSI AA _____________________________________________________________________ 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. _____________________________________________________________________

1 0

NSI AA draft v4
by Hans Trompert 17 Jun '14

17 Jun '14

Hi, Please find attached draft v4 of the NSI AA document. I tried to keep it as concise as possible. It is a major rewrite of the draft v2 that was implemented earlier this year in OpenNSA, Autobahn, Safnari and possibly others. I believe that the main concepts are backwards compatible, but the implementation details will most likely change a bit. A couple of weeks ago I sent a slide pack with the renewed concepts to a subset of this group but did not receive much feedback. I hope that sending it to the whole group will elicit some more reactions. Things that still need to be done are: * description of additional schemas used to add security attributes to NSI message + examples (I will need some help from an expert here) * more and/or better use cases (please all help) * a final review by a native speaker Cheers, HansT.

1 0

NSI Connection Service 2.0 published
by Guy Roberts 16 Jun '14

16 Jun '14

Hello All, The NSI Connection Service 2.0 recommendation has now been published as GFD-R-P.212 It is available to download here: http://www.ogf.org/documents/GFD.212.pdf 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. _____________________________________________________________________

1 0

Minutes from today's NSI conf call
by Guy Roberts 04 Jun '14

04 Jun '14

.... are available here: https://redmine.ogf.org/dmsf_files/13262 _____________________________________________________________________ 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. _____________________________________________________________________

1 0

today's NSI conf call
by Guy Roberts 04 Jun '14

04 Jun '14

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: - Decision on STP - structured vs. opaque - If STP is to be structured rules on parsing _____________________________________________________________________ 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. _____________________________________________________________________

2 1