Towards programmable on‐demand lightpath services: current state‐of‐the‐art and open research areas. Issue 6 (1st November 2019)

• Record Type: Journal Article
• Authors: Nkosi, Mpho C.; Mamushiane, Lusani; Lysko, Albert A.; Johnson, David L.; Engelbrecht, Andries P.
• Is Part Of: IET networks. Volume 8:Issue 6(2019)
• Page Start: 347
• Page End: 355
• Publication Date: 2019-11-01
• Subjects: optical fibre networks -- telecommunication network management -- wavelength division multiplexing -- application program interfaces -- wavelength assignment -- telecommunication congestion control -- telecommunication network routing; SDN lightpath routing solution -- open research issues -- optical software defined networks -- easier network management -- emerging programmable network architecture -- efficient lightpath routing -- reliable lightpath routing -- restoration mechanisms -- wavelength assignment algorithms -- admission control mechanisms -- lightpath scheduling -- high‐bandwidth consuming services -- lightpaths -- programmable networks -- traditional network architectures -- networking industry -- programmable network architectures -- open research areas -- towards programmable on‐demand lightpath services; Computer network architectures -- Periodicals; Computer network protocols -- Periodicals; Information networks -- Periodicals; Telecommunication systems -- Periodicals; 004.605
• DOI: 10.1049/iet-net.2018.5040
• Languages: English
• ISSNs: 2047-4954

Abstract

Abstract : With emerging programmable network architectures gaining momentum in the networking industry, it is necessary to look at how the services currently offered on traditional network architectures can be fully migrated to the programmable networks. In traditional networks, lightpaths are used for providing high‐bandwidth consuming services that are usually sensitive to delay. Lightpath scheduling requires admission control mechanisms, routing and wavelength assignment algorithms, and protection and restoration mechanisms that ensure reliable and efficient lightpath routing. Software defined networking (SDN) is the emerging programmable network architecture that paves the way for easier network management and configuration by using application programming interfaces. The state‐of‐the‐art in lightpath routing for wavelength division multiplexing networks focusing on lightpath scheduling, routing, protection and restoration in optical software defined networks is surveyed. Moreover, open research issues for SDN lightpath routing solution are discussed.