Voice/data integration on Ethernet - backoff and priority considerations

Authors:
I Chlamtac;M Eisenger
Affiliations:
Computer Science Department, Technion City, Israel Institute of Technology, Haifa 32 000, Israel;Computer Science Department, Technion City, Israel Institute of Technology, Haifa 32 000, Israel
Venue:
Computer Communications
Year:
1983

Citing 2
Cited 1

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Local Networks: Motivation, Technology and Performance
The behavior of Ethernet-like computer communications networks

SOSP '79 Proceedings of the seventh ACM symposium on Operating systems principles

Standards and protocols: A real-time flood-routed voice protocol for fibre optic local area networks

Computer Communications

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Abstract

Astudy of the CSMA/CD protocol as given in the Ethernet specifications, for real time (voice in particular) and mixed voice/data environments is described. The objectives of the study were to predict the Ethernet's behaviour under the current protocols, to point out potential improvements within the realm of the current specifications, and to improve understanding of the network behaviour in these environments. Results are given in terms of relative performance of the various system measures given as a function of system and traffic models. It is shown that the support provided to real time voice on Ethernet strongly depends on the assumptions made with regard to the coexisting data user's traffic and that with certain data traffic patterns the observed voice delay is much worse than previously reported. Finally, it is shown that without violating the Ethernet network specification, voice service can be improved by simple adjustments of the Ethernet retransmission 'backoff' algorithm.