[eepro100] FYI Intel 82559 and Cisco Catalyst incompatibiliti es

Farrell, Troy troy.farrell@wcg.com
Tue, 7 Aug 2001 10:30:39 -0500

Thanks for the input.  I tried manually setting the NIC to 100FD and 100HD.
Unfortunately, I am not authorized to change settings on the Catalyst :( and
though I set the NIC, the switch insisted upon renegotiating.


-----Original Message-----
From: Ben Greear [mailto:greearb@candelatech.com]
Sent: Tuesday, August 07, 2001 10:24 AM
To: Farrell, Troy
Cc: 'eepro100@scyld.com'; 'support@penguincomputing.com'
Subject: Re: [eepro100] FYI Intel 82559 and Cisco Catalyst

"Farrell, Troy" wrote:
> I'm posting this story hoping it will be a help to someone with similar
> problems.
> I've been seeing problems with the onboard adapter on the SuperMicro
> MB in my new Penguin Computing Relion 220.  When I plug the Pro/100+ NIC
> into our Cisco Catalyst 5500 with multiple WS-X5225R 24 port 10/100 cards,
> the link light will come on for 30-90 seconds and go off for 5-30 seconds.
> While the problem appears in both DOS and Linux, loading the Intel e100.o
> driver and watching the message log reveals that the card is loosing the
> link.  The driver reports something like "e100: eth0 Link is Down",
> shortly by "e100: eth0 Link is Up 100FD". The system is running RedHat 7.1
> and I've tried both the 2.4.2RH kernel and a new 2.4.7 kernel with the
> eepro100 and Intel's e100 drivers.  I've also tried Mr. Becker's new
> at ftp.scyld.com/pub/network/test/eepro100.c .  After reading the eepro100
> list archives, I tried turning off the sleep bit, without any behavior
> change.  To solve this problem, I've put a Linksys 10/100 switch between
> server and the Cisco Catalyst 5500 as the Intel NIC and the Catalyst
> to work together.
> The problem is similar to that described by others in the past:
> http://www.scyld.com/pipermail/eepro100/2000-March/000870.html
> http://www.geocrawler.com/archives/3/435/2000/10/0/4468572/
> http://uwsg.iu.edu/hypermail/linux/kernel/0010.2/0904.html

Try using mii-diags to set the link speed to a fixed 100bt-FD.  Do
the same on your Cisco.  If it's just negotiation problems, this
should fix it.