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Designing Traffic-Aware Approach Using Packet Buffer Architecture For High-Bandwidth Routers

Journal: International Journal of Scientific & Technology Research (Vol.2, No. 8)

Publication Date:

Authors : ; ;

Page : 280-283

Keywords : Index Terms Router memory; SRAMDRAM; packet scheduling; memory buffers.;

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ABSTRACT All packet switches contain packet buffers to hold packets during times of congestion. High-speed routers rely on well-designed packet buffers that support multiple queues provide large capacity and short response times and suggested combined SRAMDRAM hierarchical buffer architectures to meet these challenges. This is particularly true for a shared memory switch where the memory needs to operate at times the line rate where is the number of ports in the system. Even input queued switches must be able to buffer packets at the rate at which they arrive. We address these issues by first designing an efficient compact buffer that reduces the SRAM size requirement by k - 1k. Then we introduce a feasible way of coordinating multiple subsystems with a load balancing algorithm that maximizes the overall system performance. Both theoretical analysis and experimental results demonstrate that our load balancing algorithm and the distributed packet buffer architecture can easily scale to meet the buffering needs of high bandwidth links and satisfy the requirements of scale and support for multiple queues.

Last modified: 2014-03-17 17:35:34