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Tehnika
2014, vol. 69, br. 5, str. 803-809
jezik rada: srpski
vrsta rada: izvorni naučni članak
doi:10.5937/tehnika1405803S


Performanse modela za ugovaranje E2E servisa u internetu naredne generacije
Univerzitet u Beogradu, Saobraćajni fakultet

Projekat

Razvoj novih metoda i alata za unapredenje performansi, mrežne i ekonomske efikasnosti telekomunikacionih mreža naredne generacije (MPNTR - 32025)

Sažetak

Evolucija ka Internetu naredne generacije podrazumeva dinamičko ugovaranje E2E (End-to-End) kvaliteta servisa, posredstvom protokola za signalizaciju, na putanji između dva provajdera, koja su međusobno povezana preko jednog ili više tranzitnih provajdera. Osnovni modeli za ugovaranje E2E servisa su: (1) kaskadni model, u kome jedan provajder kontroliše ugovaranje servisa na putanji, i (2) posrednički (third-party, 3P) model, u kome se ugovaranje servisa vrši preko poverljivog posrednika. U ovom radu su uporedno analizirane performanse navedenih modela, sa aspekta prenosa signalizacionog saobraćaja, simulacijom tri realistične topologije interkonektovanih mreža, pomoću mrežnog simulatora NS2. Posebno je ukazano na perspektive primene i alternativne implementacije 3P modela.

Ključne reči

Reference

*** Network simulator ns2 and network animator NAM. http://www.isi.edu/nsnam
*** Trace graph: NS trace files analyzer. Available from: http://nsnam.isi.edu/nsnam/ index.php/Contributed_ Code
*** NS2 visual trace analyzer. Available from: http://- nsvisualtraceanalyzer.wordpress.com
*** (2010) ITU-T recommendation Y.1542: Framework for achieving end-to-end IP performance objectives
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