Design and performance of a threshold-based load balancing scheme in an ATM switch

✍ Scribed by Shyamal Chowdhury; Bhaskar Sengupta

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 995 KB
• Volume: 29
• Category: Article
• ISSN: 0169-7552
• DOI: 10.1016/s0169-7552(96)00081-5

✦ Synopsis

We consider an ATh4 switch consisting of a number of output-buffered ATM switch elements operating in parallel. Such an architecture may lead to uneven distribution of cells over the parallel switch element buffers, if no modifications to the design is made. 'With this motivation, we propose a threshold based load balancing method to evenly distribute the cells over the parallel switch element buffers. We present the details of how the load balancing method can be implemented.

Our computer simulations show that the proposed load balancing method significantly reduces the cell loss probability. The study is done wi1.h two input traffic models: random traffic and bursty traffic.