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Effektivisering av keepalive mekanism iIS-IS & OSPF i Spine-Leaf arkitektur
University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
University West, Department of Engineering Science, Division of Mathematics, Computer and Surveying Engineering.
2021 (Swedish)Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
Abstract [sv]

Rapporten undersökte link-state protokollen OSPF och IS-IS förmåga att effektivisera hallå och död mekanismen så att protokollen snabbt skulle känna av kabelbrottet. Målet var att ta reda på vilket protokoll som snabbast konvergerar samt undersöka hur simulerad låg-latens trafik klarar av specificerade krav under konvergensen. Testerna gjordes i spine-leaf arkitektur vilket har mer fokus på lager tre jämfört med den hierarkisk arkitekturen. Protokollen testades i fem scenarier och resultaten jämfördes med konvergenstiden och de VoIP krav som behöver uppfyllas för ett lyckat trafikflöde. Resultaten visar att det som avgör valet av protokoll kommer att vara om man föredrar låga paketförluster eller låg konvergenstid. För låg konvergenstid är IS-IS scenario tre bästa valet och för låga paketförluster är OSPF scenario fem bäst. För OSPF scenario tre som ligger imitten mellan värdena i paketförluster och konvergens tid anses den som en kompromiss.

Abstract [en]

The report examined the link-state protocols OSPF and IS-IS ability to streamline the hello and dead mechanisms so they quickly could detect the cable failure. The goal was to find out which protocol fastest converged and examine how low-latency traffic would be affected compared to the specified requirements under convergence. The tests were made in a spine-leaf architecture which focuses more on layer three than the hierarchical architecture. The protocols were tested in five scenarios and the results were compared using the time of convergence and the VoIP requirements.The results show that depending on which property you prefer will decide which protocol to use, low convergence time or low packet loss. For the low convergence times IS-IS scenario three is the best choice and for low packet losses OSPF scenario five is the best. For OSPF scenario three whose value is in the middle of packet loss and convergence time can be seen as a compromise.

Place, publisher, year, edition, pages
2021. , p. 27
Keywords [en]
IS-IS, OSPF, Konvergence, Spine-leaf, VoIP, Jitter, Packet loss, Link-State
Keywords [sv]
IS-IS, OSPF, Konvergens, Spine-leaf, VoIP, Jitter, Paketförlust, Link-State
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:hv:diva-17702Local ID: EXN300OAI: oai:DiVA.org:hv-17702DiVA, id: diva2:1609303
Subject / course
Computer engineering
Educational program
Nätverksteknik med IT-säkerhet
Supervisors
Examiners
Available from: 2021-12-03 Created: 2021-11-08 Last updated: 2021-12-03Bibliographically approved

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