Date: Fri, 12 Apr 2002 21:52:05 +0930 From: Luke Schapel <lschapel@bigpond.com> To: Anthony Atkielski <anthony@freebie.atkielski.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Variable Ethernet speeds between machines? Message-ID: <3CB6D16D.C0C8AB45@bigpond.com> References: <009f01c1e216$44a311a0$0a00000a@atkielski.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Anthony Could be the switch. Have you tried different ports? Luke Anthony Atkielski wrote: > > This is only partially a FreeBSD question, but I thought people here might > be more likely to know what's going on. > > I have three machines on my LAN: a FreeBSD 4.3 server, a Windows NT Server > desktop, and a Windows XP desktop. Each of the machines has a 10/100 Mbps > full-duplex Ethernet NIC. The machines are connected via CAT5 coax to a > 3Com Ethernet switch that is supposed to detect the cable type (crossover or > straight) and speed (10 or 100) automagically. The mystery I encounter is > that transfers over the LAN between the NT machine and the FreeBSD machine > never appear to exceed 10 Mbps, but transfers between the FreeBSD machine > and the XP machine, or between the XP machine and the NT machine, easily > reach a full 100 Mbps. > > Anyone have any idea why this is? I'd expect the transfers with a given > machine to always run at the same speed (if the other machine is capable of > that speed). So if NT transfers to XP (or vice versa) at 100 Mbps, then it > should do the same with FreeBSD--but it doesn't. And yet all of the > machines are clearly capable of 100 Mbps transfers. What's going on? > > I don't think FreeBSD is responsible for the discrepancy; I'm just trying to > figure out what might be different about the FreeBSD/NT transfers that might > cause them to run at 10 Mbps instead of 100 Mbps. As I've said, FreeBSD > transfers at the full 100 Mbps with the XP machine, and so does the NT > machine. Very strange! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3CB6D16D.C0C8AB45>