Ok now this is strange. I have a new dell Laptop Model C840 with built in ethernet controller. I got in 2 closet switches today(3550SMI) I needed to configure. After getting everything configured through the console I plugged my laptop into fa0/1 configured the port for speed 100 duplex full. Configured my laptop for 100 full and did not even get a link light. I then configured the port for 10 half and my laptop hard set for 10 half still no link light. I then set the switch for speed auto duplex auto and set my laptop to 100 full and it came right up did a show int to make sure no duplex mismatches and the switch was saying it was 100 full. And no matter what I set my laptop settings to as long as the switch was set for auto everything came right up. This has got me puzzled. If I even set my laptop for auto and the switch to 100 full I do not even get a link light. Bottom line is as long as the switch is set to auto for speed and duplex no matter what I set my laptop for it works. I took some of my own advise I gave on the board here a while back when we all discussed this and updated my network card drivers from Dell and nothing changed. There was a thread a while back about this and maybe the guy was right the old advise of hard setting both devices might be out the window. And if so it is taking alot of control away from the engineers and why would we be headed in that direction? I would like to get some thoughts on this and rekindle the conversation about this a little. One last piece of important info I thought it was the cable well I trashed it and got a new one out of the pack and had the same situation, needless to say I was digging the old one back out the garbage :). It is cat6 patch cabling.
Cisco Internetwork Operating System Software IOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(12c)EA1, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Sun 24-Nov-02 23:58 by antonino Image text-base: 0x00003000, data-base: 0x006077A8 ROM: Bootstrap program is C3550 boot loader waa1cswq01 uptime is 2 hours, 30 minutes System returned to ROM by power-on System image file is "flash:c3550-i9q3l2-mz.121-12c.EA1/c3550-i9q3l2-mz.121-12c. EA1.bin" cisco WS-C3550-48 (PowerPC) processor (revision H0) with 65526K/8192K bytes of m emory. Processor board ID CAT0704Z1MZ Last reset from warm-reset Running Layer2/3 Switching Image -- "BSD is for people who love Unix - Linux is for people who hate Microsoft" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66402&t=66402 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

