Performance measurement of integrated voice/data on CSMA/CD network using orthogonal array methodology

Author

Peyrovian, M. Javad

Author_Institution

AT&T Bell Lab., Holmdel, NJ, USA

fYear

1990

fDate

2-5 Dec 1990

Firstpage

231

Abstract

The measurements that were carried out to determine the performance of the AT&T StarLAN for integration of voice and data are described. StarLAN is a local area network with star topology that uses the CSMA/CD protocol for medium access. For performance measurement, a systematic method based on orthogonal arrays was used. These measurements show that voice and data can be integrated on StarLAN with good grade-of-service, if the total load does not exceed 6 Mbps. This is true for any data packet size and any end-to-end delay up to 4 μs. For voice-only terminals, this load corresponds to about 50 to 55 simultaneous active voice stations. For more than 6 Mbps acquisition time, and consequently packet loss, increase sharply due to multiple collisions and deferrals. For interactive data applications, echoplex delay meets the objectives if the load does not exceed 7.5 Mbps

Keywords

carrier sense multiple access; data communication systems; local area networks; protocols; voice communication; 4 mus; 6 Mbit/s; 7.5 Mbit/s; AT&T; CSMA/CD network; CSMA/CD protocol; StarLAN; acquisition time; active voice stations; data packet size; echoplex delay; end-to-end delay; grade-of-service; integrated voice/data; interactive data applications; local area network; medium access; orthogonal array methodology; packet loss; performance measurement; star topology; voice-only terminals; Access protocols; Delay; Java; Local area networks; Measurement; Multiaccess communication; Network topology; Telecommunication traffic; Telephony; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-87942-632-2

Type

conf

DOI

10.1109/GLOCOM.1990.116511

Filename

116511