Here's an answer from a year ago from Eric B "The CDP duplex error message may not mean you have a mis-match in the speed/duplex somewhere.
The message occurs because CDP version 2 packets include duplex information. CDP version 1 doesn't include duplex info. If you have a older device that speaks CDP version 1 only and you're router speaks CDP version 2 then you'll get this message. Ways to fix it are to disable CDP, or change from CDP version 2 to version 1. You can do this by doing a 'no cdp advertise-v2' globally on the routers. Not sure about the switches." > -----Original Message----- > From: Valeri Marinski [mailto:[EMAIL PROTECTED]] > Sent: Monday, January 13, 2003 9:56 AM > To: [EMAIL PROTECTED] > Subject: "DUPLEX MISMATCH " cdp tells me - but all set ok [7:60964] > > > Hi > > I have a problem with a Cat3548 and 2611 where i did set the ports on > both to FULL DUPLEX and no errors are seen on the interfaces but the > switch's CDP is keeping telling me > > %CDP-4-DUPLEX_MISMATCH ....... discovered > > > is this some kind of IOS bug ? > > Any danger from this message or can i just ignore it - unless it will > somehow "error-disable" the ports :) this would be deadly Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60971&t=60971 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
