Design of Partially Buffered Crossbar Switches for Supporting Mixed Traffic

Wang, Wen-Fong; Hung, Li-Chuan; Lu, Ching-Sung

doi:10.1109/iih-msp.2013.28

Cited by 3 publications

(1 citation statement)

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“…Compared with unicast traffic using N virtual output queuings (VOQs) to avoid the head-of-line (HoL) blocking, the VOQs needed for avoiding multicast traffic HoL is 2 N −1, which is known as multicast virtual output queuing (MC-VOQ) [1] and is not practical in even medium-size switches due to the poor scalability. Therefore, a feasible solution is to allocate k (1…”

Section: Introductionmentioning

confidence: 99%

Achieving 100% Throughput for Integrated Uni- and Multicast Traffic without Speedup

Yan¹,

Xiong²,

Xiao³

et al. 2017

IJCNS

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Along with the unbounded speedup and exponential growth of virtual queues requirement aiming for 100% throughput of multicast scheduling as the size of the high-speed switches scale, the issues of low throughput of multicast under non-speedup or fixed crosspoint buffer size is addressed. Inspired by the load balance two-stage Birkhoff-von Neumann architecture that can provide 100% throughput for all kinds of unicast traffic, a novel 3-stage architecture, consisting of the first stage for multicast fan-out splitting, the second stage for load balancing, and the last stage for switching (FSLBS) is proposed. And the dedicated multicast fan-out splitting to unicast (M2U) scheduling algorithm is developed for the first stage, while the scheduling algorithms in the last two stages adopt the periodic permutation matrix. FSLBS can achieve 100% throughput for integrated uni-and multicast traffic without speedup employing the dedicated M2U and periodic permutation matrix scheduling algorithm. The operation is theoretically validated adopting the fluid model.

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Section: Introductionmentioning

confidence: 99%