Realization of Flow-control Mechanism and Analysis of Crosspoint Buffer Size in CICQ Switch
Yusong Lin · 2006
Traditional input-queued switches based on crossbar are insufficient in providing good QoS performance.As a contrast,the CICQ(combined input and crosspoint queuing) switches can provide almost 100% throughput under different input traffic,its performance is very closed to the OQ(output-queued) switch,and has the potentials to support good QoS.This paper analyzes the mechanism of flow-control,discusses the scheme for credit-based flow control,and analyzes the minimum buffer size in crosspoint required to realize 100% throughput.