July 2012 - nml-wg - lists.ogf.org

CFP: NetCloud2012 - The 2nd workshop on Network Infrastructure Services as part of Cloud Computing (3-6 December 2012, Taipei, Taiwan)
by Yuri Demchenko 31 Jul '12

31 Jul '12

Apologies for cross-posting. Submission website is open > https://www.easychair.org/conferences/?conf=netcloud2012 CFP link > http://www.geysers.eu/index.php/newsandevents/49-events/139-netcloud2012-wo… The CloudCom2012 conference (http://2012.cloudcom.org/) features a number of workshop with majority of AP regional participants. P.S. The Organising Committee is considering deadline extension for 2 weeks but this will be confirmed later. ----------- CFP NetCloud2012 -------------- The 2nd workshop on Network Infrastructure Services as part of Cloud Computing (NetCloud 2012) http://www.geysers.eu/index.php/newsandevents/49-events/139-netcloud2012-wo… In conjunction with the 4th IEEE International Conference on Cloud Computing Technology and Science (CloudCom2012) http://2012.cloudcom.org 3-6 December 2012, Taipei, Taiwan Introduction The workshop is a follow-up of the first successful workshop in 2011, where a number of enthusiasts of cloud computing and future networking exchanged ideas and presented results of research projects dealing with clouds and network integration. The Cloud computing emerges as a new computing paradigm which aims to provide secure and reliable, on demand QoS guaranteed computing environments for the end-users. Cloud computing services usage in both academia and industry, changed the way of thinking on how users’ needs can be satisfied by computational infrastructures. However, with the increase of data transferred among different places, it became critical how to support distributed computing resources with advanced network infrastructure services. It is envisioned that network infrastructure services provisioned on-demand could be managed and reconfigured dynamically by Cloud operators and user applications to achieve optimal usage criteria. Such dynamic infrastructures reveal new aspects in network virtualisation, service delivery automation and general infrastructure resources management that should be supported by well-defined information models and related middleware. New components of the required network infrastructure for Cloud services and applications should create an integrated self-management environment that can react to changes in workloads and other events with minimal human interference. Security issues should addressed as a part of the general service delivery framework/workflow and support both infrastructure provisioning process and secure virtualised services/infrastructures operation. The workshop will address issues of network virtualisation to create an ecosystem for cloud computing applications. In particular, the workshop will discuss the progress of development of advanced tools and mechanisms for seamless and efficient integration of network and IT worlds, not well interconnected so far. The workshop will consist of a number of sessions, where recent results of on-going and just-finished research projects will be demonstrated. The workshop will present also some future research considerations on the future of cloud computing and networking and expose views from different perspectives: research projects and industry. The workshop will be followed by a panel discussion, to allow free exchange of thoughts and ideas between the workshop speakers and audience. Objectives NetCloud 2012, collocated with IEEE CloudCom 2012, attempts to address the problem of how the underlying network infrastructure is capable of supporting advanced cloud computing cases. The workshop is intended to bring together network research community, commercial network operators and industry with the major cloud computing players, including IT specialists, researchers and commercial providers. Topics of Interest * Definition and architectures for the Network as a Service (NaaS) cloud service model and Cloud Carrier operational model * Heterogeneous network architectures and frameworks for distributed and high performance computing * Cloud and Intercloud architecture frameworks and required on-demand network infrastructure provisioning * Unified and converged IT and optical resources description languages and frameworks for cloud oriented infrastructures * General Infrastructure services provisioning in clouds, new architecture developments, service delivery and on-demand provisioning frameworks * Isolation and flexibility of the cloud oriented virtualised optical networks * Network infrastructure optimization for intra- and inter- datacenter communication and resources virtualisation * Standardization of optical network service provisioning interfaces for cloud based platforms and services * Co-advertisement, co-planning, composition and co-provisioning of any type of optical network resource and IT services (i.e. connectivity + IT resources at the end-points coordinated in a single, optimal procedure) * Performance and reliability issues, Service Level Agreement and QoS guarantees in the network layer * Dynamically provisioned security infrastructure and its integration with provider and customer legacy services and service provisioning workflow, security policy definition, security context management * End-to-end techniques for autonomic management of cloud resources * Policy based infrastructure services management * Experimental platforms that support network management in cloud computing * Experimentation test-beds and measurement studies Call for papers: Papers describing original research on both theoretical and practical aspects of dynamic network services for cloud computing are solicited. Important Dates: Paper Submissions: August 10, 2012 Notification: September 7, 2012 Camera-ready: September 28, 2012 NetCloud2012 workshop (during CloudCom2012): 3-6 December2012 Paper submission instructions This workshop will only accept for review original papers that have not been previously published. Papers should be formatted based on the IEEE Transactions journals and conferences style; maximum allowed camera-ready paper length is six (6) pages. Submissions must be in Adobe PDF format, including text, figures and references. Accepted papers will be published in the CloudCom2012 proceedings, for further information see IEEE CloudCom2012 web page http://2012.cloudcom.org/. Paper submission website https://www.easychair.org/conferences/?conf=netcloud2012 Review procedure All submitted paper will be reviewed by international program committee. Workshop Organizers The workshop is organized by the partners of the GEYSERS, the EC-funded FP7 project. Bartosz Belter, Poznan Supercomputing and Networking Center, Poland bartosz.belter (at) man.poznan.pl Yuri Demchenko, University of Amsterdam, The Netherlands, y.demchenko (at) uva.nl Technical Program Committee (tentative list) 1. Ilias Baldine (RENCI, US) 2. John Baras (Maryland, US) 3. Thomas Michael Bohnert (ZTH, Switzerland) 4. Luis Miguel Contreras (TID, Spain) 5. Graca Carvalho (Cisco, The Netherlands) 6. Nicola Ciulli (Nextworks, Italy) 7. Pasquale Donadio (Alcatel-Lucent Italy, Italy) 8. Joan Antoni Garcia Espin (i2CAT, Spain) 9. Jeroen van der Ham (UvA, Netherlands) 10. Max Ott (NICTA, Australia) 11. Anna Tzanakaki (AIT, Greece)

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Re: [Nml-wg] NML version of AutoGOLE
by Freek Dijkstra 31 Jul '12

31 Jul '12

I gave some input for the AutoGOLE and NSI folks to turn their existing topology descriptions into NML. In that process, Jeroen, Henrik and Roman where so kind to provide feedback. Here is my reply to some of Roman's feedback (quoted on-list with his permission): >> xmlns:nml="http://schemas.ogf.org/nml/2013/10/base/" >  >  I have no objection, but this was already decided upon. Let me quote from the meeting notes of OGF 30 in Brussels: https://forge.ogf.org/sf/go/doc16105 > Proposed namespace (after GFD-C.084) is http://schemas.ogf.org/nml/2013/10/base/ > Jason counter proposal http://schemas.ogf.org/nml/base/2013/10/ > (where 2013/10 is year/month of schema publication) > > Rough consensus on: > - http://schemas.ogf.org/nml/base/2013/10/ (Jason's proposal) So it seems I was wrong too (I should have used base before the date). Otherwise, I don't think that your argument is strong enough to change it anymore, so let's use "http://schemas.ogf.org/nml/base/2013/10/" (where 2013/10 is year/month of schema publication). >> <nml:name xml:lang="en">Northernlight</nml:name> > >  >  xml:lang is a standard construct to signify the language of the element (string) value. See section 2.12 of the XML specification (http://www.w3.org/TR/xml/#sec-lang-tag) "xml:lang" is really fairly common. It's one of the only 4 attributes listed on http://en.wikipedia.org/wiki/XML, and in fact it's so common a fair slew of people use it in HTML, even though it has no effect there (source: https://developers.google.com/webmasters/state-of-the-web/2005/pageheaders) Since it is so common, I see no reason not to use it. >> <dtox:managedBy idRef="urn:ogf:network:nordu.net:2011:NORDUnet:org"/> >  >  This is caused by a typo. The original URN was "urn:ogf:network:nsa:northernlight", but since this doesn't confirm to the urn:ogf:network spec (https://forge.ogf.org/svn/repos/urn-ogf-docs/urn-ogf-network/) I changed it. Unfortunately, I forgot to rename the target identifier. [...] >  >  Both were typos and will also be fixed. Thanks for your thorough read, Freek.

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OGF 36
by Freek Dijkstra 31 Jul '12

31 Jul '12

Hi all, The call for sessions at OGF 36 in Chicago is open. How many sessions do we like to have? Unfortunately, I will not be able to make it myself to OGF 36. My wife is expecting our second baby just two weeks prior to OGF/GLIF, and it is impossible for me to make a long trip so shortly thereafter. I'm terrible sorry for the inconvenience, but given the progress last weeks and the progress in the weeks to come, I very much hope that you will meet each other, and I will do my best to participate remotely. Freek

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id/idRef
by Freek Dijkstra 30 Jul '12

30 Jul '12

Last, a long-time discussion: Roman spotted another issue: >>> The idRef="urn:ogf:network:nordu.net:2011:NORDUnet:org" does not >>> appear to point at anything. Freek replied: >> Good catch. Frankly, the difference between id and idRef is never >> properly defined. Roman clarified: > The idea of id and idRef was taken from NM/NMC and it's very useful > to make distinction between definitions and references to those > definitions. I am aware of the origin, but will repeat my original rather firm statement: I've never seen a proper definition of the difference between the two. I've seen vague statements about origin, but I do not think that NML should use id/idRef to make statements about origin, if only for the reason that RDF does not contain id nor idRef. We did try to come up with a proper solution in https://forge.ogf.org/sf/go/artf6555 But that discussion was stranded by some terminology discussion in the related https://forge.ogf.org/sf/go/artf6553 (warning: long read) We did not get a consensus on the terminology, let alone find a solution how to encode it in either XML or RDF. I encourage you to come up with a good explanation what you want to distinguish between, and how you want to make that distinction -- both in XML and in RDF. I am looking forward to that proposal, but by lack thereof, I claim that we're better of without the id/idRef distinction, since it will only lead to confusion. Freek

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OpenFlow and SDN workshop at OGF36
by Guy Roberts 24 Jul '12

24 Jul '12

Hello all, I have recently received expressions of interest in a workshop on OpenFlow and SDN at OGF36 - I have now formally requested this SDN workshop with the following goals: "OpenFlow and Software Defined Networking (SDN) have gained considerable attention this year following Google's announcement that they have been using the OpenFlow interface with their network controllers to manage the traffic on their G-Flow network linking their international data centres. The R&E networking community is actively engaged in investigating new services based on OpenFlow; these services are related to and can interact with NSI and NML compliant services. This workshop will focus on alignment and synergies between OpenFlow and OGF infrastructure group standards, in particular NSI and NML." Please let me know if you are interested in presenting at this workshop. Regards, 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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Simple example #1
by Roman Łapacz 20 Jul '12

20 Jul '12

Hi, please, take a look at the attachment. Waiting for comments. thanks Roman

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new serial compound example
by Roman Łapacz 20 Jul '12

20 Jul '12

Hi, I've added new example with serial compound link. See our repo in nml-examples/201207-compoundlink. Please, check it. Any comment is welcome. thanks, Roman

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Next conf call: Thu 9 aug
by Freek Dijkstra 20 Jul '12

20 Jul '12

Due to holidays, I propose that the next NML conference call will be at August 9. In the mean time, I try to update some documents, and document open issues in the artefacts. Thu rsday Aug 9 UTC 15:00 - CEST 17:00 - Eastern 11:00 - Pacific 8:00 Call: +1-734-615-7474 (Please use if you do not pay for Long Distance) or +1-866-411-0013 (toll free US/Canada Only) Enter access code: 0186145 Agenda: to be decided Regards, Freek

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Re: [Nml-wg] [Nsi-wg] STPs in NSI v2.0
by Roman Łapacz 18 Jul '12

18 Jul '12

Hi, W dniu 2012-07-10 22:27, Freek Dijkstra pisze: > <nsi:path> >  > <nsi:STP> > <Network>urn:ogf:network:cesnet.cz:2012:czechlight</Network> >  > <source><nml:PortGroup>urn:ogf:network:nordu.net:2012:nordunet-surfnet</nml:PortGroup></source> > <sink><nml:PortGroup>urn:ogf:network:nordu.net:2012:surfnet-nordunet</nml:PortGroup></sink> > </nsi:STP> > <nsi:STP> > <Network>urn:ogf:network:sne.science.uva.nl:2012:lighthouse</Network> >  > <source><nml:PortGroup>urn:ogf:network:sne.science.uva.nl:2012:lighthouse-egress</nml:PortGroup></source> > <sink><nml:PortGroup>urn:ogf:network:sne.science.uva.nl:2012:lighthouse-ingress</nml:PortGroup></sink> > </nsi:STP> > </nsi:path> Freek, in your examples sent to the NSI group you didn't use idRef attribute for nml:GroupPort (or nml:Port). It's a small thing but I think we should be strict to use accepted structures. To me using tag values for this is not supported by NML at the moment (if we had xsd or rnc schema this would be verified easily). Roman

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nmwgt -> nml
by Roman Łapacz 17 Jul '12

17 Jul '12

Hi, I'm thinking how NML could be used in existing pS services, especially in RRD MA. See below. Any suggestions/comments how this could be done? metadata piece valid for RRD MA: <nmwg:metadata id="meta1"> <netutil:subject id="subj1"> <nmwgt:interface> <nmwgt:hostName>test-hostName</nmwgt:hostName> <nmwgt:ifAddress type="ipv4">10.1.2.3</nmwgt:ifAddress> <nmwgt:ifName>test-0</nmwgt:ifName> <nmwgt:ifDescription>test descripyion</nmwgt:ifDescription> <nmwgt:direction>in</nmwgt:direction> <nmwgt:capacity>1000BaseT</nmwgt:capacity> </nmwgt:interface> </netutil:subject> <nmwg:eventType>http://ggf.org/ns/nmwg/characteristic/utilization/2.0</nmwg:eventType> <nmwg:eventType>http://ggf.org/ns/nmwg/tools/snmp/2.0</nmwg:eventType> <nmwg:parameters id="params1"> <nmwg:parameter name="keyword">project:geant2</nmwg:parameter> </nmwg:parameters> </nmwg:metadata> a quick proposal using NML's Port that looks strange to me: <nmwg:metadata id="meta1"> <netutil:subject id="subj1"> <nml:Port> <nml:label labelType="http://schemas.ogf.org/nml/ip/ipv4/if/address/2013/10/">193.10.252.66</nml:label> <nml:label labelType="http://schemas.ogf.org/nml/ip/ipv4/if/hostNames/2013/10/">test-hostName</nml:label> ... ... ... </nml:Port> </netutil:subject> <nmwg:eventType>http://ggf.org/ns/nmwg/characteristic/utilization/2.0</nmwg:eventType> <nmwg:eventType>http://ggf.org/ns/nmwg/tools/snmp/2.0</nmwg:eventType> <nmwg:parameters id="params1"> <nmwg:parameter name="keyword">project:geant2</nmwg:parameter> </nmwg:parameters> </nmwg:metadata> or use of set of labels with different parameter attributes would be fine? <nml:label parameter="http://schemas.ogf.org/nml/ip/ipv4/if/address/2013/10/">193.10.252.66</nml:label> <nml:label parameter="http://schemas.ogf.org/nml/ip/ipv4/if/hostName/2013/10/">test-hostName</nml:label> <nml:label parameter="http://schemas.ogf.org/nml/ip/ipv4/if/ifName/2013/10/">test-0</nml:label> ... or new elements (ifAddress, hostName,...) of nml-ipv4 namespace inside Port? Roman

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