Simulation study of the traffic dependent performance of a prioritized, CSMA broadcast network
A CSMA broadcast network engaged in short to very long message transmission was studied by means of a discrete event simulation. These studies imply that no advantage is to be obtained in a two-trunk network by dedicating one trunk to long message transmission and the other to short message transmission. In addition, the throughput of a single-trunk, multiport network is significantly reduced when one of the ports is attached to a host with a significantly slower host-to-port transfer rate than the others. Finally, a CSMA broadcast network wherein all hosts interact with the same destination (and not each other) can be prone to thrashing, especially at high loads. The networks summarized behave as described largely because the critical resource is host/adapter availability and speed, and not the number or capacity of the trunks, and secondarily because of certain inadequacies of the second-level protocol. 8 figures.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5810085
- Report Number(s):
- UCRL-83238(Rev.1); CONF-791023-2(Rev.1)
- Country of Publication:
- United States
- Language:
- English
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