On Thu, 22 Jan 2004, David Gilbert wrote: > >>>>> "Mike" == Mike Hunter <[EMAIL PROTECTED]> writes: > > Mike> Hi everybody, I'm going to be trying to get gigabit throughput > Mike> between my laptop (Dell Latitude D800 running 5.2-release) and a > Mike> shuttle box running FreeBSD 5.1 (not in front of me at the > Mike> moment.) As part of the process, I attempted to increase the > Mike> frame size on my laptop, only to be greeted with disappointment: > > A few things to think about. I don't know what disk you got, but the > 60G disk in mine doesn't appear to be all that fast. You might be > able to get memory to memory transfers to be GigE speeds, but your > hard drive(s) are likely a limit from getting too much speed.
The 40GB disk is 7200 RPM, but the others offered on that model are all 5400RPM. I was going to order mine with the 60G disk until my Dell rep. told me that little tidbit. > Mike> The C file talks about being able to do jumbo frames when the > Mike> mtu is big enough...anybody know what I'm missing? My card is a > Mike> "Broadcom BCM5705M" and I'm running FreeBSD 5.2-release. When I > Mike> asked google, it mostly pointed me at comments in if_bge.c > Mike> talking about jumbo frames :| > > Unfortunately, the chip in the D800 is a scaled down version. It > doesn't support jumbo frames. I assume that broadcom sells the > cripled part at a lower price than the full part. There are notes in > the driver about what's diabled in this specific version. I'm curious why the 800 would have the lower end chip, it's a higher end laptop all around when compared to the 600. Jamie Bowden -- "It was half way to Rivendell when the drugs began to take hold" Hunter S Tolkien "Fear and Loathing in Barad Dur" Iain Bowen <[EMAIL PROTECTED]> _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
