Date: Wed, 13 Sep 2000 16:53:29 -0500 From: Oscar Ricardo Silva <oscars@mail.utexas.edu> To: freebsd-questions@FreeBSD.ORG Subject: Gigabit nics? Message-ID: <4.3.2.7.2.20000913164651.00adbde0@mail.utexas.edu>
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We're looking at testing some gigabit NICs and am wondering if anyone has any experience with them. I've found four vendors that make them: Alteon (<http://www.alteonwebsystems.com/products/acenic/index.asp>) Myricom/Myrinet (<http://www.myri.com/myrinet/PCI64/m3f-pci64b.html>) Intel 3COM The Alteon and Myrinet sites advertise compatibility with FreeBSD and what really got my attention on this was a Duke University project: *************** <http://www.cs.duke.edu/ari/trapeze/>; We did not improve the TCP/IP protocol software and we did not build or modify high-speed LAN hardware. These are significant technical achievements that we claim no credit for. The credit for the LAN is due to Myricom, and the credit for gigabit-capable TCP/IP software is due to others, e.g., Van Jacobson, Dave Borman, and many others who have contributed to TCP/IP over the years, as well as to its implementation in FreeBSD. Moreover, our result was made possible by advancing endstation hardware, most notably 64-bit PCI. Typical TCP socket implementations running over typical gigabit LANs (e.g., a Gigabit Ethernet using the standard 1500-byte MTU) deliver about half a gigabit per-second. We set up a DEC/Compaq Alpha 21264 (XP1000) workstation with prototype LANai-7 Myrinet cards donated by Myricom, installed our firmware, booted an enhanced FreeBSD kernel, and measured TCP bandwidths above 1.1 gigabits per second -- twice as fast as typical workstations and operating systems connected to current gigabit-per-second LANs. *************** which used FreeBSD and Digital Unix in conjunction with Myrinet and Alteon equipment. Any information would be appreciated. Thanks, Oscar To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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