From: "Dieter Nützel" <Dieter.Nuetzel@hamburg.de>
To: Riley Williams <rhw@MemAlpha.CX>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>
Subject: Re: 3c509: broken(verified)
Date: Tue, 7 Aug 2001 03:00:43 +0200 [thread overview]
Message-ID: <20010807013236Z270022-28344+2122@vger.kernel.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0108070003540.4091-100000@infradead.org>
In-Reply-To: <Pine.LNX.4.33.0108070003540.4091-100000@infradead.org>
Am Dienstag, 7. August 2001 01:11 schrieben Sie:
> Hi Dieter.
>
> >> You mention the problem is being unable to change the media, I
> >> was unaware this was even possible with the current 3c509
> >> driver, and most people do it on 3c509's and other PNP cards of
> >> this sort (such as NE2000 clones) by using a DOS boot diskette
> >> and the DOS utilities provided by the manufacturer.
> >
> > That's what I did. I've set it to "auto mode" and it works with
> > RJ45 cable. But I can't verify if "full duplex" worked right.
>
> What transfer speed do you get doing an FTP transfer across the link?
Don't know. I have to plug a laptop or something on it to test. Perhaps Dad's
PC (but the later is still connected via switched 100 Mbits ;-)
> 10base is theoretically capable of one meg per second,
1.25 MByte/sec (max)
> and experience
> indicates that a 10baseT link normally shows just under 500k per
> second flat out, presumably due to the half duplex nature of the
> 10baseT protocol. I'd expect 10base2 half duplex to be similar, and
> 10base2 full duplex to be somewhat faster.
I thought it should read 10baseT (with RJ45 cable) can reach 1.25 MByte/sec
full duplex (switched)?
>
> > So I changed it under Win to "10baseT" for which the 3Com
> > utilities say "full duplex" enabled.
>
> One slight problem - 10baseT uses CoAxial cable, not RJ45 - and, as
> far as I'm aware, 10baseT is strictly half duplex whereas 10base2
> (which uses RJ45 twisted pair cable) is capable of either half or full
> duplex.
See above.
Thanks,
Dieter
PS Before we go full OT I switch to private mode.
next prev parent reply other threads:[~2001-08-07 1:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-06 23:00 3c509: broken(verified) Dieter Nützel
2001-08-06 23:11 ` Riley Williams
2001-08-07 1:00 ` Dieter Nützel [this message]
2001-08-06 23:15 ` Nicholas Knight
2001-08-07 1:00 ` Dieter Nützel
[not found] <E15Tvju-0001ta-00@infradead.org>
2001-08-07 6:57 ` Riley Williams
-- strict thread matches above, loose matches on Subject: below --
2001-08-06 22:38 Leif Sawyer
[not found] <no.id>
2001-08-05 13:20 ` Alan Cox
2001-08-05 14:23 ` Nico Schottelius
2001-08-05 16:00 ` safemode
2001-08-06 15:54 ` Nico Schottelius
2001-08-06 22:30 ` Nicholas Knight
2001-08-05 11:10 Nico Schottelius
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