An effective prediction method for network state information in SD-WAN

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dc.contributor.authorAkin, Erdal
dc.contributor.authorSarac, Ferdi
dc.contributor.authorAslan, Omer
dc.date.accessioned2024-12-24T19:33:57Z
dc.date.available2024-12-24T19:33:57Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractIn a software-defined wide area network (SD-WAN), a logically centralized controller is responsible for computing and installing paths in order to transfer packets among geographically distributed locations and remote users. Accordingly, this would necessitate obtaining the global view and dynamic network state information (NSI) of the network. Therefore, the centralized controller periodically collects link-state information from each port of each switch at fixed time periods. While collecting NSI in short periods causes protocol overhead on the controller, collecting in longer periods leads to obtaining inaccurate NSI. In both cases, packet losses are inevitable, which is not preferred for quality of service (QoS). Packet loss needs to be reduced by minimizing the protocol overload on the controller and collecting accurate NSI to provide better QoS. This work proposes an effective prediction method for collecting NSI (PM-NSI) that significantly reduces packet loss and controller protocol load allowing the controller to collect accurate NSI in longer periods. The proposed method is compared against the existing NSI collection method, which collects NSI periodically, in use on the RYU controller and the Mininet emulator by using a dynamic routing algorithm. The test results indicated that PM-NSI reduces controller load around 1000% by collecting NSI in longer periods and so outperforms the existing periodic NSI collection method in terms of packet loss, jitter, controller load, and thus QoS.
dc.identifier.doi10.3906/elk-2104-182
dc.identifier.endpage278
dc.identifier.issn1300-0632
dc.identifier.issn1303-6203
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85125892745
dc.identifier.scopusqualityQ2
dc.identifier.startpage263
dc.identifier.trdizinid527977
dc.identifier.urihttps://doi.org/10.3906/elk-2104-182
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/527977
dc.identifier.urihttps://hdl.handle.net/20.500.12604/8345
dc.identifier.volume30
dc.identifier.wosWOS:000746001700004
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Electrical Engineering and Computer Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectRouting in SD-WAN
dc.subjectnetwork state information
dc.subjectsoftware-defined wide area network
dc.subjectload balancing
dc.titleAn effective prediction method for network state information in SD-WAN
dc.typeArticle

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