An algorithm for connection precedence and preemption in asynchronous transfer mode (ATM) networks

This paper describes an algorithm for use in asynchronous transfer mode (ATM) networks that allows connections to be admitted on the basis of precedence. While currently employed ATM prioritization schemes grant priority to cells in the network, high precedence connections may be locked out when the...

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Bibliographic Details
Published in1998 IEEE International Conference on Communications Vol. 1; pp. 299 - 303 vol.1
Main Authors Poretsky, S., Gannon, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
Admission control
Algorithm design and analysis
Asynchronous transfer mode
Bandwidth
Hospitals
Intelligent networks
Military satellites
Resource management
Scheduling
Switches
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Summary:This paper describes an algorithm for use in asynchronous transfer mode (ATM) networks that allows connections to be admitted on the basis of precedence. While currently employed ATM prioritization schemes grant priority to cells in the network, high precedence connections may be locked out when the requested network resources are unavailable. The algorithm described in this paper considers connection precedence when making the admission decision and preempts lower precedence connections when the requested resources are unavailable. No modification is required to the deployed connection admission control (CAC) algorithm and the network manager may configure the precedence assignment and preemption policies for network-specific optimization. Through software simulation, it was shown that higher precedence connections experienced a significantly improved rate of admission at the expense of preempting lower precedence connections. The tradeoff was increased connection establishment processing time.
ISBN:0780347889
9780780347885
DOI:10.1109/ICC.1998.682795