Date: Fri, 27 Feb 1998 20:41:26 -0800 (PST) From: Jan Koum <jkb@best.com> To: David Greenman <dg@root.com> Cc: FreeBSD Questions <questions@FreeBSD.ORG> Subject: Re: "Best" Fast Ethernet Card Message-ID: <Pine.BSF.3.96.980227202523.27617A-100000@shell6.ba.best.com> In-Reply-To: <199802252256.OAA14216@implode.root.com>
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I am moving this question to -questions just because it really has
nothing to do with hackers. :)
% dmesg | grep fxp
fxp0 <Intel EtherExpress Pro 10/100B Ethernet> rev 1 int a irq 11 on
pci0:11
fxp0: Ethernet address 00:a0:c9:25:08:04
% ifconfig -a
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 209.24.x.x netmask 0xffffff00 broadcast 209.24.x.255
ether 00:a0:c9:25:08:04
media: autoselect
The question I have is: in the ethernet card bios the card is set
to 10BaseT and half-duplex. But if I do:
# ifconfig fxp0 media 10BaseT/UTP up
# ifconfig -a
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 209.24.x.x netmask 0xffffff00 broadcast 209.24.x.255
ether 00:a0:c9:25:08:04
media: 10baseT/UTP
So, should I worry much about it? Should I add the "ifconfig
fxp0 media" command to /etc/rc.local or should I just leave it alone with
"media: autoselect"?
-- Yan
On Wed, 25 Feb 1998, David Greenman wrote:
>>What's the difference between the REV A and REV B boards?
>
> The A boards use a different NIC and are not supported.
>
>>> The recently released 3com Fast Etherink XL (rev B) 3C905B NIC is the best money
>>> can buy (apart from server cards costing upwards of 250UKP).
>>> It has lower CPU usage than any other card, helping it to give the fastest
>>> performance.
>
> The 3Com 3c905 driver in FreeBSD uses the card in compatibility mode (non-
>DMA programmed I/O) and is thus the slowest/highest overhead board that we
>support. The Intel PCI Pro/100B and Pro/100+ are the fastest/lowest overhead
>boards that we support, followed by the DEC boards. I haven't measured the
>performance of the new SMC cards, but I doubt that it is any lower overhead
>than the Intel cards.
>
>-DG
>
>David Greenman
>Core-team/Principal Architect, The FreeBSD Project
>
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