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master's thesis
Dinamička kontrola kvalitete usluge u programski upravljanim mrežama
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2017. urn:nbn:hr:168:969895
Jozić, Josip
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

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Jozić, J. (2017). Dinamička kontrola kvalitete usluge u programski upravljanim mrežama (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:969895

Jozić, Josip. "Dinamička kontrola kvalitete usluge u programski upravljanim mrežama." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2017. https://urn.nsk.hr/urn:nbn:hr:168:969895

Jozić, Josip. "Dinamička kontrola kvalitete usluge u programski upravljanim mrežama." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2017. https://urn.nsk.hr/urn:nbn:hr:168:969895

Jozić, J. (2017). 'Dinamička kontrola kvalitete usluge u programski upravljanim mrežama', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:969895

Jozić J. Dinamička kontrola kvalitete usluge u programski upravljanim mrežama [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2017 [cited 2024 December 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:969895

J. Jozić, "Dinamička kontrola kvalitete usluge u programski upravljanim mrežama", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:168:969895

Metadata
TitleDinamička kontrola kvalitete usluge u programski upravljanim mrežama
Title (english)Dynamic quality of service in software-defined networks
AuthorJosip Jozić
MentorŽeljko Ilić (mentor)
Committee memberŽeljko Ilić (predsjednik povjerenstva)
Committee memberMladen Kos (član povjerenstva)
Committee memberMarin Šilić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2017-07-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
Programsko upravljanje mrežama je paradigm koja uvodi drugačiji pristup nadzora mreže u usporedbi s tradicionalnim IP mrežama. U SDN-u, mrežom upravlja središnji element zvan kontroler. Kontrolna i podatkovna ravnina su odvojene, tako da mrežni uređaju postaju jednostavni uređaji za prosljeđivanje paketa dok se kontrolna logika provodi u kotnroleru. Preko otvorenih sučelja, tzv. southbound sučelja za komunikaciju mrežnih uređaja i kontrolera, te tzv. northbound sučelja između kontorlera i aplikacija, SDN omogućuje programibilnost mreže vanjskim aplikacijama. Kako bi se ostvarila SDN načela, u ovom radu koristio se Ciscov APIC-EM kontroler. Preko northbound REST API-ja, kontroler omogućuje pokretanje različitih SDN aplikacija i donosi mnoge prednosti (pruža jedinstvenu točku za kontrolu mreže i široku automatizaciju, pretvara poslovne namjere u dinamičnu konfiguraciju mreže i štedi vrijeme, resurse i troškove). APIC-EM ima sedam ugrađenih aplikacija: Device inventory, Host inventory, Topology, IWAN, Path Trace, Network plug and play and EasyQoS. EasyQoS aplikacija koriste se za definiranje i upravljanje kvalitetom usluge u nadziranoj mreži. Nakon što korisnik prepozna skup mrežnih uređaja koji će provoditi QoS politiku (opseg pravila), potrebno je odrediti pravila koja određuju prioritet prometa (QoS politika) te naposljetku pridružiti politiku određenom skupu uređaja. Tako se postiže statički QoS. Za dinamički QoS, koji se uglavnom koristi u glasovnim i video aplikacijama, kontroler prima API zahtjev za specifični tok za dva krajnja uređaja, npr. dva IP telefona. Zahtjev može biti poslan s Cisco Unified Communications Manager-a kada je glasovni/video poziv uspostavljen, odnosno prekinut. Kada je zahtjev pri uspostavi poziva primljen, kontroler postavlja specifičnu policy-mapu na sučelje na koje je telefon spojen, koja sadrži pristupnu listu s odgovarajućim instrukcijama, sve do trenutka kad se pošalje signal za prekid poziva.
Abstract (english)
Software-defined networking is a paradigm that introduce a different approach for network management in comparasion with traditional IP networks. In SDN, network is managed by central element, called controller. Control and data plane are separated, so network devices become simple packet forwarding devices, while control logic is implemented in controller. Via open interfaces, southbound interface for controller - network device communication, and northbound interface between controller and applications, SDN enables programmability of network by external applications. To achieve SDN principles, in this thesis Cisco’s APIC-EM controller is used. With northbound REST API, this controller enables various SDN applications to be running on it and brings many benefits. It provides single point for network control and wide automation, transforms business intent policies into dynamic network configuration and saves time, resources and costs. APIC-EM has a seven built-in applications: Device inventory, Host inventory, Topology, IWAN, Path Trace, Network plug and play and EasyQoS. EasyQoS application is used for define and manage quality of service in monitored network. After user identifies the set of network devices that are to enforce QoS (policy scope), it is necessary to specify the rules that prioritize traffic (QoS policy) and simply assign a policy to a scope. That is how static QoS is achieved. For dynamic QoS, which is primarily used in voice and video applications, controller receive an API request to create specific flow for two end devices, e.g. two IP phones. Requst can be sent from Cisco Unified Communications Manager when voice/video call is established/terminated. When that request is received, controller during the call set specific policy map on related interface (where is phone connected) that contains access list with corresponding instructions.
Keywords
Keywords (english)
Languageenglish
URN:NBNurn:nbn:hr:168:969895
Study programmeTitle: Information and Communication Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2019-03-13 21:15:29