Title :
Spacing cells protects and enhances utilization of ATM network links
Author :
Boyer, Pierre E. ; Guillemin, Fabrice M. ; Servel, Michel J. ; Coudreuse, Jean-Pierre
Author_Institution :
CNET, Lannion, France
Abstract :
It is shown that peak cell rate policing can be combined with fast reservation protocols for achieving statistical multiplexing in asynchronous transfer mode (ATM) networks. A cell spacer-controller architecture which smooths out cell clusters according to the original period both at the user network interface (UNI) and at network node interface (NNI) is proposed. A performance evaluation of the spacer-controller is presented. The evaluation involves modeling the spacer-controller, dimensioning a virtual scheduling algorithm, and the impact on cell delay variation (CDV). It is shown that large CDVs may induce severe degradation in the accuracy of usage parameter control/network parameter control mechanisms.<>
Keywords :
asynchronous transfer mode; telecommunication networks; ATM network links; NNI; UNI; asynchronous transfer mode; cell clusters; cell delay variation; cell spacer-controller architecture; fast reservation protocols; network node interface; peak cell rate policing; performance evaluation; statistical multiplexing; usage parameter control/network parameter control; user network interface; virtual scheduling algorithm; Bit rate; Communication system traffic control; Contracts; Protection; Protocols; Resource management; Telecommunication traffic; Timing; Traffic control; Uncertainty;
Journal_Title :
Network, IEEE
