FCS Errors

john-lucero · ‎02-04-2003

Can someone give me a good explanation of what an FCS error is (utilizing a Catalyst 5500 Switch), and what might be causing an excessive number on a fast Ethernet port.

Your help is greatly appreciated.

efrahim · ‎02-04-2003

On the 100full duplex link, this is the indication of the speed/duplex mismatch, please make sure that the speed and duplex is hardcoded to 100/full on both switch and server site..

Here is the good url for the ref.

http://www.cisco.com/warp/customer/473/53.shtml

http://www.cisco.com/warp/customer/473/3.html

john-lucero · ‎02-04-2003

Thank you for the Info. This is what I had expected. I was not able to check the system.