Using the Network Description Language in Optical Networks

Transcription

1 Using the Network Description Language in Optical Networks Jeroen van der Ham, Paola Grosso, Ronald van der Pol, Andree Toonk, Cees de Laat System and Network Engineering Research Group, UvA Network Research Group, SARA TNO Defence, Security & Safety IM 2007, Munich - 22 May 2007

2 Problem Statement IM 2007, Munich 2/22

3 Existing Solution IM 2007, Munich 3/22

4 Proposed Solution Inter-domain pathfinding requires knowledge of global topology IM 2007, Munich 4/22

5 Resource Description Framework RDF - Semantic Web technique XML as an interchange syntax Data is a graph described by triplets Subject Predicate Object IM 2007, Munich 5/22

6 Network Description Language (v1) IM 2007, Munich 6/22

7 NDL Example IM 2007, Munich 7/22

8 NetherLight in RDF <?xml version="1.0" encoding="utf-8"?> <rdf:rdf xmlns:rdf=" xmlns:ndl=" xmlns:geo=" <!-- Description of Netherlight --> <ndl:location rdf:about="#amsterdam1.netherlight.net"> <ndl:name>netherlight Optical Exchange</ndl:name> <geo:lat> </geo:lat> <geo:long>4.9527</geo:long> </ndl:location> <!-- TDM3.amsterdam1.netherlight.net --> <ndl:device rdf:about="#tdm3.amsterdam1.netherlight.net"> <ndl:name>tdm3.amsterdam1.netherlight.net</ndl:name> <ndl:locatedat rdf:resource="#amsterdam1.netherlight.net"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:501/1"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:501/2"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:501/3"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:501/4"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:502/1"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:502/2"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:502/3"/> <ndl:interface <ndl:hasinterface rdf:about="#tdm3.amsterdam1.netherlight.net:501/3"> rdf:resource="#tdm3.amsterdam1.netherlight.net:502/4"/> <ndl:name>tdm3.amsterdam1.netherlight.net:501/3</ndl:name> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:503/1"/> <ndl:connectedto <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:503/2"/> <ndl:hasinterface rdf:resource=" rdf:resource="#tdm3.amsterdam1.netherlight.net:503/3"/> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:503/4"/> <ndl:capacity <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:504/1"/> rdf:datatype=" <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:504/2"/> </ndl:interface> <ndl:hasinterface rdf:resource="#tdm3.amsterdam1.netherlight.net:504/3"/> <ndl:interface <ndl:hasinterface rdf:about=" rdf:resource="#tdm3.amsterdam1.netherlight.net:504/4"/> <rdfs:seealso rdf:resource=" IM 2007, Munich 8/22 </ndl:interface>

9 NDL Generator and Validator IM 2007, Munich 9/22

10 Applications IM 2007, Munich 10/22

11 More Applications IM 2007, Munich 11/22

12 Lightpath Monitoring IM 2007, Munich 12/22

13 Multi-Layer Path Finding GE is adapted in STS-24c (SONET channel thru OC-192) U. Calgary GE CA*net Canada UvA OC-192 OC-192 GE Star Light Chicago OC-192 MAN LAN New York OC-192 Nether Light Amsterdam FD GE is adapted in STS-3c-7v (SONET channel thru OC-192) IM 2007, Munich 13/22

14 Multi-Layer Path Finding GE is adapted in STS-24c (SONET channel thru OC-192) U. Calgary GE CA*net Canada UvA OC-192 OC-192 GE Star Light Chicago OC-192 MAN LAN New York OC-192 Nether Light Amsterdam FD GE is adapted in STS-3c-7v (SONET channel thru OC-192) GE is adapted in STS-3c-7v (SONET channel thru OC-192) IM 2007, Munich 14/22

15 Layer schema based on G.805 IP layer Ethernet layer SONET layer End host UTP Ethernet/ SONET switch Ethernet/ SONET switch fiber SONET switch layer Ethernet/ SONET switch layer End host IM 2007, Munich 15/22

16 NDLv2 - Layer IM 2007, Munich 16/22

17 NDLv2 - Topology IM 2007, Munich 17/22

18 Domain Abstractions Full Topology Semi-topo (edge nodes only) Maximum Summarization Ref: Tom Lehman (ISI) IM 2007, Munich 18/22

19 OGF NML-WG Open Grid Forum - Network Markup Language workgroup Chairs: Paola Grosso Universiteit van Amsterdam Martin Swany University of Delaware Purpose: To describe network topologies, so that the outcome is a standardized network description ontology and schema, facilitating interoperability between different projects. IM 2007, Munich 19/22

20 RDF Infrastructure Application: find video containing x, then trans-code to it view on Tiled Display PG&CdL IM 2007, Munich 20/22

21 Conclusions Lightpath finding, provisioning and troubleshooting are central issues in optical networks. NDL provides solutions for: - Interdomain topology exchange - Network maps - Lightpath monitoring - Lightpath provisioning Based on RDF, NDL is extensible and integrates with other independent ontologies. IM 2007, Munich 21/22

22 References Questions? IM 2007, Munich 22/22