High-performance FPGA network switch architecture
File(s)fpga2020switch.pdf (1.12 MB)
Accepted version
Author(s)
Papaphilippou, Philippos
Meng, Jiuxi
Luk, Wayne
Type
Conference Paper
Abstract
We present a high-throughput FPGA design for supporting high-performance network switching. FPGAs have recently been attracting attention for datacenter computing due to their increasing transceiver count and capabilities, which also benefit the implementation and refinement of network switches. Our solution replaces the crossbar in favour of a novel, more pipeline-friendly approach, the “Combined parallel round-robin arbiter”. It also removes the overhead of incorporating an often-iterative scheduling or matching algorithm, which sometimes tries to fit too many steps in a single or a few FPGA cycles. The result is a network switch implementation on FPGAs operating at a high frequency and with a low port-to-port latency. It also provides a wiser buffer memory utilisation than traditional Virtual Output Queue (VOQ)-based switches and is able to keep 100% throughput for a wider range of traffic patterns using a fraction of the buffer memory and shorter packets.
Date Issued
2020-02-23
Date Acceptance
2019-11-22
Citation
FPGA '20: Proceedings of the 2020 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays, 2020, pp.76-85
ISBN
978-1-4503-7099-8
Publisher
ACM
Start Page
76
End Page
85
Journal / Book Title
FPGA '20: Proceedings of the 2020 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays
Copyright Statement
© 2020 ACM. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in FPGA '20: Proceedings of the 2020 ACM/SIGDA International Symposium on Field-Programmable Gate Arrays (23 Feb 2020) https://dl.acm.org/doi/10.1145/3373087.3375299
Sponsor
Dunnhumby Limited
Engineering & Physical Science Research Council (E
Commission of the European Communities
Engineering & Physical Science Research Council (EPSRC)
Grant Number
PO: 250130012887
516075101 (EP/N031768/1)
671653
EP/P010040/1
Source
FPGA 2020 28th ACM/SIGDA International Symposium on Field-Programmable Gate Arrays
Subjects
Network switch
FPGA
round-robin
arbiter
scheduling algorithms
sorting network applications
stream processing
Publication Status
Published
Start Date
2020-02-23
Finish Date
2020-02-25
Coverage Spatial
Seaside, California, USA