On Wed, Dec 26, 2001 at 02:22:15PM -0800, 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?
> 
> At home, I have a Netgear FS116, a 16-Port unmanaged switch.  It is
> auto-sensing/full-duplex 10/100Mbits/sec switch.  Therefore, we cannot
> control how it will behave.
> 
> 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.
> 
> What I'm getting at is that just because one end is not set to
> auto-negotiate/auto-sense that there will be no communication at all.  Say,
> that one end is set manually, and the other end is automatic.  The automatic
> end will set itself to the parameters of the one that is manually set.  This
> is how my network works.  Thus, I don't believe that both ends, need to be
> set the same way in order to work in this scenario.
> 
> The automatic will automatically negotiate/auto-sense to whatever can't be
> changed, as a result, they work.  Or is this even what you folks are arguing
> about?

I do not know if this is written in the standard, but I have seen devices
where if you turn off AutoNeg, they won't respond at all to the packets.
But I have also seens devices which will still respond, but just to their
fixed setting. I personal prefer it that if I turn off autoneg, it won't
do anything, because that gives you a fixed point. Any production system
I always set switch and host to full 100.

-- 
Regards, Ulf.

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Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204
You can find my resume at: http://seven.Alameda.net/~ulf/resume.html

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