Disabling auto-negotiation

[Norman Lund]

Heya,

Sounds like maybe the cable either is too long, or has interference
somewhere along the way.  Have you evaluated the length is below 300 feet
(or approx)?  Maybe try performing some cable tests to see if the signal is
reaching each end.  (just to make sure the cabling isn't an issue.)

I had an issue like this, but a little different when I worked on the east
coast at an ISP.  Turned out that the port on the router (Cisco) wasn't
configured properly to communicate with our 3-Com switch, and I had tried
everything including just ripping all information from each port and going
bare 10mb.  Maybe get one of the guys responsible for the catalyst (or is
that you? ;) ) to run through the settings on the port again with you along
with your going over your end with him/her.
Just my .02 cents, give or take a little.

Norman Lund
normanlund@kaos-solutions.com
----- Original Message -----
From: "Blake Barnett" <Blake.Barnett@DevelopOnline.com>
To: "PLUG Discuss (E-mail)" <plug-discuss@lists.PLUG.phoenix.az.us>
Sent: Tuesday, October 10, 2000 1:38 PM
Subject: Disabling auto-negotiation


> I sent the following to the eepro mailing list and have had no response, I
> thought I'd give the good ol' plug a try.  If anyone knows a better way to
> force speed and duplex negotiation, please let me know!
>
> ---> snip
>
> For some reason, when we use the mii-diag utility to force 100mbs - Full
> Duplex we get a ton of Alignment errors on our catalyst.  Anyone have any
> ideas?
>
> 1. The cards are eepro100's with 100mbs link-lights on.
> 2. The ports on the switch are set to 100-FD
> 3. When changing the ports on the switch to 10-FD 99% of the errors go
away,
> but speed is reduced dramatically.  (imagine that.)
> 4. I've downloaded the SRPMS for redhat and recompiled the drivers,
> mii-diag, and eepro100-diag, all goes well.  Still seems to be the same
> situation.
>
> Any help would be greatly appreciated.
>
> Blake Barnett
> Sr. Unix Administrator
> DevelopOnline.com Corporation
>
>
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