DocumentCode :
3465923
Title :
Modeling and analysis of an ABR flow control algorithm for a virtual source/virtual destination switch
Author :
Cseh, Christian
Author_Institution :
Dept. of Comput. Sci., Technische Hochschule Aachen, Germany
fYear :
2001
fDate :
2001
Firstpage :
407
Lastpage :
414
Abstract :
The ABR service class of ATM networks uses a feedback control mechanism to adapt to varying link capacities. The VS/VD technique offers the possibility to segment the otherwise end-to-end ABR control loop into separate loops. The improved feedback delay and the control of ABR traffic inside closed segments provide a better performance for ABR connections. This paper presents the use of classical linear control theory to model and develop an ABR VS/VD flow control algorithm. Discrete event simulation is used to analyze the behavior of the algorithm with respect to transient behavior and correctness of the control model. Linear control theory offers the means to derive correct choices of parameters and to assess performance issues, like stability of the system, during the design phase. The performance goals are a high link utilization, fair bandwidth distribution and robust operation in various environments, which are verified by discrete event simulations. The major contribution of this work is the use of analytic methods (linear control theory) to model and design an ABR flow control algorithm tailored for the special layout of a VS/VD switch, and the use of simulation techniques to verify the result
Keywords :
asynchronous transfer mode; discrete event simulation; feedback; telecommunication control; transient analysis; ABR connections; ABR flow control algorithm; ATM networks; VS/VD technique; classical linear control theory; closed segments; design phase; discrete event simulation; fair bandwidth distribution; feedback control mechanism; link capacities; link utilization; robust operation; system stability; transient behavior; virtual source/virtual destination switch; Algorithm design and analysis; Asynchronous transfer mode; Communication system traffic control; Control theory; Delay; Discrete event simulation; Feedback control; Switches; Traffic control; Transient analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Modeling, Analysis and Simulation of Computer and Telecommunication Systems, 2001. Proceedings. Ninth International Symposium on
Conference_Location :
Cincinnati, OH
ISSN :
1526-7639
Print_ISBN :
0-7695-1315-8
Type :
conf
DOI :
10.1109/MASCOT.2001.948893
Filename :
948893
Link To Document :
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