Digitized voice distribution using XTP and FDDI

Author

Weaver, Alfied C. ; McNabb, James F.

Author_Institution

Dept. of Comput. Sci., Virginia Univ., Charlottesville, VA, USA

fYear

1992

fDate

13-16 Sep 1992

Firstpage

456

Lastpage

465

Abstract

The feasibility of distributing digitized voice over FDDI using the Xpress Transfer Protocol (XTP) is examined. The requirements of such a system, the role of a communications protocol, and the overall experimental design are studied. A basic configuration is developed to measure the system throughput, latency, and jitter, and from these data the number of voice channels that a given configuration would support is computed. The basic system is then perturbed by adding up to 75 Mb/s of background synchronous load to the FDDI network, and by artificially dropping up to 10% of the transmitted packets to force retransmissions. Whether XTP´s reliable transport multicast, which provides a 1-to-m transmission capability, provides a latency reduction when compared to m serial unicasts is investigated. Conclusions regarding the utility of a transport protocol for both single segment and multiple-segment LANs are presented

Keywords

FDDI; local area networks; protocols; speech analysis and processing; FDDI; XTP; Xpress Transfer Protocol; communications protocol; digitised voice distribution; jitter; latency; multiple-segment LANs; system throughput; voice channels; Analog-digital conversion; Computer networks; Data mining; Delay; Design for experiments; FDDI; Laboratories; Microprocessors; Payloads; Transport protocols;

fLanguage

English

Publisher

ieee

Conference_Titel

Local Computer Networks, 1992. Proceedings., 17th Conference on

Conference_Location

Minneapolis, MN

Print_ISBN

0-8186-3095-7

Type

conf

DOI

10.1109/LCN.1992.228156

Filename

228156