Mostra el registre d'ítem simple
Dynamic topology discovery in SDN-enabled transparent optical networks
dc.contributor.author | Montero, Rafael |
dc.contributor.author | Agraz Bujan, Fernando |
dc.contributor.author | Pagès Cruz, Albert |
dc.contributor.author | Perelló Muntan, Jordi |
dc.contributor.author | Spadaro, Salvatore |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors |
dc.date.accessioned | 2017-09-26T10:48:24Z |
dc.date.issued | 2017 |
dc.identifier.citation | Montero, R., Agraz, F., Pages, A., Perello, J., Spadaro, S. Dynamic topology discovery in SDN-enabled transparent optical networks. A: International Conference on Optical Network Design and Modeling. "2017 International Conference on Optical Network Design and Modeling (ONDM): 15–17 May 2017, Budapest, Hungary: conference proceedings". Budapest: Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 1-6. |
dc.identifier.isbn | 978-3-901882-93-7 |
dc.identifier.uri | http://hdl.handle.net/2117/108009 |
dc.description.abstract | Optical technologies play nowadays a crucial role in different network scenarios (e.g., data centres, metro and access networks), mainly due to their support for higher bandwidth and scalability in comparison to electronic-based opaque solutions. In this context, the deployment of the Software Defined Networking (SDN) paradigm over optical networks has gained interest from both industry and research communities, spawning several implementations over multiple well documented use cases. However, in Transparent Optical Networks (TONs), where nodes offer optical switching capabilities, neighbouring nodes adjacencies have to be manually configured at both data and control plane levels, which is a lengthy task that can potentially lead to misconfiguration. Alternative solutions rely on the use of supervisory networks or dedicated channels. Nevertheless, implementing these methods requires both effort and resources to provide adjacencies discovery, making the awareness of the correct underlying topology by the SDN controller a tedious and occasionally very complex process. In this paper, we present a novel SDN-based cost-effective topology discovery method, allowing TONs to automatically learn physical adjacencies between optical devices. In particular, this is achieved by means of a test-signal mechanism and the OpenFlow protocol. The SDN control plane and optical agent implementations, as well as the message exchange flow between the subsystems and the controller are described. Then, the proposed discovery mechanism is experimentally assessed over an emulated TON test-bed, analysing the average time required for the optical topology discovery in different network scenarios. |
dc.format.extent | 6 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Topologia |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica |
dc.subject.lcsh | Optical communications |
dc.subject.lcsh | Topology |
dc.subject.other | Topology discovery |
dc.subject.other | Transparent optical networks |
dc.subject.other | Optical subsystems |
dc.subject.other | SDN controller |
dc.title | Dynamic topology discovery in SDN-enabled transparent optical networks |
dc.type | Conference report |
dc.subject.lemac | Comunicacions òptiques |
dc.subject.lemac | Topologia |
dc.contributor.group | Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
dc.contributor.group | Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/document/7958525/ |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 21082666 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Montero, R.; Agraz, F.; Pages, A.; Perello, J.; Spadaro, S. |
local.citation.contributor | International Conference on Optical Network Design and Modeling |
local.citation.pubplace | Budapest |
local.citation.publicationName | 2017 International Conference on Optical Network Design and Modeling (ONDM): 15–17 May 2017, Budapest, Hungary: conference proceedings |
local.citation.startingPage | 1 |
local.citation.endingPage | 6 |