Procjena kašnjenja u programski upravljanim mrežnim uređajima

undergraduate thesis

• Title (english): Estimation of delay in software-defined network devices
• Author: Vice Ivušić
• Mentor: Ognjen Dobrijević (mentor)
• Committee member: Ognjen Dobrijević (predsjednik povjerenstva)
• Committee member: Irena Oršolić (član povjerenstva)
• Committee member: Mirko Sužnjević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Programski upravljane komunikacijske mreže (engl. Software Defined Networks, SDN) odvajaju funkciju upravljanja paketima i funkciju samog prosljeđivanja paketa u mreži, razliku od tradicionalnih mreža gdje su obje funkcije implementirane u jednom mrežnom uređaju. Odvajanjem funkcije upravljanja paketima u upravljački uređaj postiže se visoka razina kontrole nad mrežnim resursima i načinom rada.

Međutim, funkcionalnost procjene vremena kašnjenja mrežnih uređaja nije implementirana u sklopu postojeće SDN arhitekture. U sklopu rada, predstavljena su postojeća rješenja za procjenu kašnjenja te je predstavljeno još jedno moguće rješenje temeljeno na veličini redova čekanja unutar mrežnih uređaja. Rješenje je demonstrirano kroz programsku simulaciju i implementirano koristeći upravljački uređaj OpenDaylight i simulator mreže Mininet.

Abstract (english)

Software-defined communication networks (SDN) separate the responsibility of controlling packet flow and the responsibility of physically routing the packets within a network, which is a different case than with traditional networks where both responsibilities are implemented within a single network device. By delegating the responsibility of controlling packets to a controller device, a high degree of control over network resources and their functionality can be achieved.

However, a delay estimation technique for the network devices in question is not implemented within the existing SDN architecture. As part of this paper, existing solutions for delay estimation are presented alongside another possible solution which is based on the length of the queues within network devices. The solution is both demonstrated with a program simulation and implemented using the OpenDaylight controller device and the Mininet network simulator.

• Keywords: SDN; procjena kašnjenja; programski upravljane komunikacijske mreže; OpenFlow; OpenDaylight
• Keywords (english): SDN; delay estimation; software-defined networks; OpenFlow; OpenDaylight
• Language: croatian
• URN:NBN: urn:nbn:hr:168:569567
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 21:04:15