M. Vojnovic et N. Rozic, An evaluation of the ABR explicit-rate allocation interfering with the guaranteed services traffic, COMPUT NET, 34(1), 2000, pp. 139-155
Citations number
25
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
COMPUTER NETWORKS-THE INTERNATIONAL JOURNAL OF COMPUTER AND TELECOMMUNICATIONS NETWORKING
In this paper, we evaluate operation of the available bit rate (ABR) explic
it-rate allocation in a presence of variable background traffic of the guar
anteed services. Specifically, impact of a switch averaging interval, long
range-dependence of the guaranteed traffic, and network scaling are analyze
d. Both single and multiple node network cases are considered with respecti
ve simulation models. Observed performance metrics of concern include mean
queue length, utilization, and allocation fairness. On the basis of the obt
ained results, it is observed that for both single and multiple node networ
ks a switch averaging interval close to the longest round-trip delay fairly
meets the performance objectives of concern. In our previous work, we clai
m that long-range dependency (LRD) of the guaranteed services traffic could
be transferred to the ABR traffic through the rate allocation. Hereby, it
is shown that intensity of the transferred LRD decays as the network scalin
g increases. (C) 2000 Published by Elsevier Science B.V. All rights reserve
d.