Differentiated services: an experimental vs. simulated case study

Author

Andreozzi, Sergio

Author_Institution

CNAF, Ist. Nazionale di Fisica Nucl., Bologna, Italy

fYear

2002

fDate

2002

Firstpage

383

Lastpage

390

Abstract

This paper aims to provide a proof of concept of the accuracy of simulations for studying advanced networking. The particular target technology is the differentiated services (DiffServ) architecture. The method has been to apply experimental activities conducted in a real network to a simulation environment, to gather the same performance parameters and to compare results. A worthy re-engineering of the DiffServ module of the deployed software program has been carried out and significant contribution have been made to overcome the encountered limitations and to enrich its modeling capabilities. Final results give useful suggestions for a more critical approach to simulations targeted at studying advanced networking.

Keywords

Internet; delays; digital simulation; jitter; software engineering; telecommunication computing; telecommunication traffic; DiffServ; Internet; advanced networking; delay sensitive traffic; differentiated services; jitter sensitive traffic; network simulator; software engineering; Clocks; Computer aided software engineering; Computer architecture; Diffserv networks; Hardware; Local area networks; Resource management; Switches; Testing; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Communications, 2002. Proceedings. ISCC 2002. Seventh International Symposium on

ISSN

1530-1346

Print_ISBN

0-7695-1671-8

Type

conf

DOI

10.1109/ISCC.2002.1021705

Filename

1021705