Analiza protokola za uspostavljanje, modificiranje i prekidanje sesija sa jednim ili više sudionika

master's thesis

• Title (english): Analyses of Protocol for Creating, Modifying and Terminating Sessions with One or More Participants
• Author: Ivan Katanušić
• Mentor: Štefica Mrvelj (mentor)
• Committee member: Hrvoje Gold (predsjednik povjerenstva)
• Committee member: Marko Matulin (član povjerenstva)
• Committee member: Niko Jelušić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Transport); (Department of Information and Communications Traffic); Zagreb
• Defense date and country: 2017-05-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Postal and Telecommunications Traffic

Abstract

SIP je kratica za Session Initation Protocol. Protokol za pokretanje sesije je signalizacijski protokol koji se koristi za uspostavu, modifikaciju i raskidanje višemedijskih sesija temeljenih na IP protokolu. Zahvaljujući SIP-u moguće je uspostaviti i upravljati različitim višemedijskim komunikacijskim sesijama između dva ili više korisnika u obliku trenutnog poručivanja (instant messaging), glasovnih ili video poziva preko IP-a (Internet Protocol), razmjene podataka. SIP je baziran na internetskom protokolu HTTP (Hyper Text Transfer Protocol). SIP protokol obavlja mnoštvo funkcija u mreži kao što su: uspostava sesije, modifikacija sesije, prekid sesije, kontrola poziva, te nesesijski vezane funkcije kao što su pokretljivost, prijenos poruka, autentikacija. U ovome radu su prikazane i objašnjene značajke i funkcije SIP protokola primjenom UML (Unified Modeling Language) dijagrama koji nude skup dobro određenih grafičkih prikaza i omogućavaju dobro razumijevanje strukture i ponašanja nekog sustava. Za opis razmjene poruka između mrežnih entiteta najčešće se koriste dijagrami međudjelovanja jer prikazuju točno određeni vremenski slijed razmjene poruka između sudionika u sustavu. SIP specifikacija opisuje kako SIP protokol djeluje preko TCP (Transmission Control Protocol) i preko UDP (User Datagram Protocol). Oba transportna protokola imaju različite karakteristike i pružaju različitu uslugu za određene SIP aplikacije. TCP pruža pouzdanost u prijenosu dok UDP ne osigurava ni pouzdanost, niti osiguranu isporuku. Oba transportna protokola, UDP i TCP posjeduju određene prednosti i nedostatke, ali sadrže i određena ograničenja u vezi prijenosa signalizacijskih poruka.

Abstract (english)

SIP is an abbreviation for Session Initiation Protocol. Session Initation Protocol is used to set up, modify, and terminate multimedia sessions over IP networks. Due to SIP it is possible to set up and maintain different multimedia communication sessions between two or more users in the form of instant messaging, voice over IP, multimedia distribution. SIP is based on internet protocol HTTP. SIP protocol carries out numerous functions on the net such as: session set- up, session modification, session termination, call control and nonsession functions such as mobility, message transfer, authentication. This work illustrates and explains the characteristics and functions of the SIP protocol using an UML diagram which offer an assembly of welldetermined graphic illustrations and enable a good understanding of the structure and behavior of a system. In order to explain the exchange of messages between network entities, interactional diagrams are used because they show a precisely definite time sequence of message exchange between participiants in the system. An SIP specification describes the way the SIP protocol acts through TCP and trough UDP. Both transport protocols have different characteristics and offer a specific SIP application with different services. TCP offers reliability in transferring, while UDP offers neither reliability not a secured message. Both transport protocols UDP and TCP posses certain advantages and disadvantages, but they also both have certain concerning the transfer of signalization.

• Keywords: SIP; sesija; IP; UML; TCP; UDP
• Keywords (english): SIP; session; IP; UML; TCP; UDP
• Language: croatian
• URN:NBN: urn:nbn:hr:119:386978
• Study programme: Title: Traffic and Transport; specializations in: Road Traffic and Transport, Railway Traffic and Transport, Water Traffic and Transport, Air Traffic and Transport, Postal Traffic, Information and Communication Traffic, Urban Traffic and Transport; Course: Information and Communication Traffic; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka prometa (magistar/magistra inženjer/inženjerka prometa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-02-08 13:44:15