Abstract
The buffered crossbar switch employs crossbar-based switching fabric architecture with internal buffers and combined input and output queueing scheme. It is promising to achieve high performance without complex implementation. In this paper, we apply network calculus-based analytical technique to study the delay performance of the buffered crossbar switch. We set up a service curve-based model for the traffic control system of buffered crossbar switch. Based on this model, we develop techniques that can determine the end-to-end service curve guaranteed to a flow of traffic and calculate the packet delay upper bound of this flow. Then we analyze the determining factors of this delay bound performance and the relation between the delay bound and the amount of resources (bandwidth and credits) allocated in the switch to a flow.
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