Date: Thu, 27 Dec 2001 01:50:07 -0800 From: "Robert L Sowders" <rsowders@usgs.gov> To: Tom <tom@uniserve.com> Cc: Allen Landsidel <all@biosys.net>, freebsd-stable@FreeBSD.ORG, owner-freebsd-stable@FreeBSD.ORG, "Peter/Los Angeles, CA" <peter@haloflightleader.net>, Sam Drinkard <sam@wa4phy.net>, sthaug@nethelp.no Subject: Re: 4.5 PRERELEASE - Call for testing Message-ID: <OFF4C3CAA7.05B581DF-ON88256B2F.0035EF73@wr.usgs.gov>
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[-- Attachment #1 --]
Not true, nada. I've proved this over and over again. Let's agree to
disagree and just move on.
Tom <tom@uniserve.com>
Sent by: owner-freebsd-stable@FreeBSD.ORG
12/26/2001 04:22 PM
To: "Peter/Los Angeles, CA" <peter@haloflightleader.net>
cc: Sam Drinkard <sam@wa4phy.net>, Allen Landsidel <all@biosys.net>,
sthaug@nethelp.no, freebsd-stable@FreeBSD.ORG
Subject: Re: 4.5 PRERELEASE - Call for testing
On Wed, 26 Dec 2001, Peter/Los Angeles, CA wrote:
> Please correct me if I'm wrong, but isn't it kind of strange that
> auto-sensing/auto-negotiating must be enabled on both sides for the
feature
> to work a bit strange?
It isn't strange at all. During auto-negotation both ends exchange a
list of capabilities that they support, and they decide what capabilities
to enable. If you disable auto-negotiate at one end, the end still doing
auto-negotiating will default to half-duplex. The speed is only thing
that can automaticatically detected.
...
> On the other hand, I have network cards on my computer which I can set
to
> full/half/auto/10/100, whatever combination I like, and yet, the switch
will
> continue to work.
Not the duplex settings. If you disable auto-negotiating on your NIC,
by forcing it to full-duplex, your auto-negotiating switch won't know what
you support and default to half-duplex. If the duplex is mistmatched,
everything seems to work, but there will be a 1 to 7% packet loss.
Tom
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[-- Attachment #2 --]
<br><font size=2 face="sans-serif">Not true, nada. I've proved this over and over again. Let's agree to disagree and just move on.</font>
<br>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td>
<td><font size=1 face="sans-serif"><b>Tom <tom@uniserve.com></b></font>
<br><font size=1 face="sans-serif">Sent by: owner-freebsd-stable@FreeBSD.ORG</font>
<p><font size=1 face="sans-serif">12/26/2001 04:22 PM</font>
<br>
<td><font size=1 face="Arial"> </font>
<br><font size=1 face="sans-serif"> To: "Peter/Los Angeles, CA" <peter@haloflightleader.net></font>
<br><font size=1 face="sans-serif"> cc: Sam Drinkard <sam@wa4phy.net>, Allen Landsidel <all@biosys.net>, sthaug@nethelp.no, freebsd-stable@FreeBSD.ORG</font>
<br><font size=1 face="sans-serif"> Subject: Re: 4.5 PRERELEASE - Call for testing</font></table>
<br>
<br><font size=2 face="Courier New"><br>
On Wed, 26 Dec 2001, Peter/Los Angeles, CA wrote:<br>
<br>
> Please correct me if I'm wrong, but isn't it kind of strange that<br>
> auto-sensing/auto-negotiating must be enabled on both sides for the feature<br>
> to work a bit strange?<br>
<br>
It isn't strange at all. During auto-negotation both ends exchange a<br>
list of capabilities that they support, and they decide what capabilities<br>
to enable. If you disable auto-negotiate at one end, the end still doing<br>
auto-negotiating will default to half-duplex. The speed is only thing<br>
that can automaticatically detected.<br>
<br>
...<br>
> On the other hand, I have network cards on my computer which I can set to<br>
> full/half/auto/10/100, whatever combination I like, and yet, the switch will<br>
> continue to work.<br>
<br>
Not the duplex settings. If you disable auto-negotiating on your NIC,<br>
by forcing it to full-duplex, your auto-negotiating switch won't know what<br>
you support and default to half-duplex. If the duplex is mistmatched,<br>
everything seems to work, but there will be a 1 to 7% packet loss.<br>
<br>
<br>
Tom<br>
<br>
<br>
To Unsubscribe: send mail to majordomo@FreeBSD.org<br>
with "unsubscribe freebsd-stable" in the body of the message<br>
</font>
<br>
<br>
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