Transcript slides
NetFPGA Greg Watson Prof. Nick McKeown, Martin Casado High Performance Networking Group Stanford and many Stanford students… 1 WARFP 2006 NetFPGA • • • • Board Software Vendor Tools Class material Teach Network System design at undergraduate and graduate level classes 2 WARFP 2006 Overview • • • • • • 3 Motivation Version 1 CS344 – Build an IP Router Version 2 Research Where now? WARFP 2006 Motivation • Provide practical experience in designing computer network systems (routers, switches, etc.) 4 WARFP 2006 Version 1 • Custom board • 3 FPGAs • SRAM, 8 10Mb/s Ethernets • Racked – remote development and debugging! 5 WARFP 2006 CS344 – Build an IP Router • 10 week class. Masters/PhD level. • Build a router with: – Hardware path for valid IP. – Software path for ARP, OSPF, invalid. – Provide CLI to manage the router. 6 WARFP 2006 CS344 setup Web Browser 171.64.5.26 171.64.5.3 VNS NetFPGA Router software Campus Internet 7 WARFP 2006 Web Server Version 2 • Issues with Version 1 – Custom Rack (expensive, complicated) – Slow (10Mb/s) – Software/hardware interface not ideal – Old technology 8 WARFP 2006 Version 2 • PCI, Four 1Gbps interfaces. 9 WARFP 2006 Version 2 512Kx36 SRAM Quad Eth PHY 4 x 1G FLASH 512Kx36 SRAM RocketIO on SATA V2P30 RocketIO on SATA Spartan PCI 32@33MHz 10 WARFP 2006 Typical Student design Eth MAC Eth MAC Eth MAC To SRAM Student Verilog (e.g. router) To SRAM Eth MAC registers Virtex2Pro30 PCI 32@33MHz 11 WARFP 2006 DMA Research • Why? – “Fast and easy to use” – “Enough gates, RAM, and bandwidth to do real network systems” • RCP @ Stanford (congestion protocol) • IDS @ ICSI • Can touch every packet 12 WARFP 2006 Where now • Classroom – Cheap, and easy to use – Develop interesting classes – Funding for support, testing, and development – Exploit on-chip CPUs (embedded systems) • Research – EmuLAB/PlanetLab type configurations? – Easy to use 13 WARFP 2006 More information • http://klamath.stanford.edu/nf2/ 14 WARFP 2006