Event Details
Performance analysis of Virtual Routing and Queuing (VRQ) switch
Presenter: Deepali Arora (M.A.Sc. candidate, ECE)
Supervisor:
Date: Fri, December 7, 2001
Time: 11:00:00 - 00:00:00
Place: EOW 430
ABSTRACT
Abstract:
A new generation asynchronous transfer mode (ATM) switch based on the principle of virtual routing and queuing (VRQ) is presented and its performance is compared with input, output, and shared buffered switches. The VRQ switch is improved since 1) it provides dedicated input queues for incoming packets destined for different output ports, and 2) the output buffers store pointers to the packets, rather than the packets themselves.
Simulations are peformed using synthetic traffic data generated using both Poisson and Pareto distributions. These data are used to drive the switches and to analyze their peformance. The results show that while principally being an input buffered switch the performance of the VRQ switch is comparable to that of an output buffered switch. Also since VRQ is essentially an input buffered switch it is relatively easy to implement in hardware compared to the output and shared buffered switches. An improved performace and easy implementation in hardware make VRQ an ideal switch.