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New Member

strange mac address causing err-disable

I have mainly 3550/4506 with port-security. Every day user ports go into err-disable and it's the same few mac addresses each time? anyone else came acreoss this ans know what's it is all about.

3 REPLIES

Re: strange mac address causing err-disable

Hi

Can you paste out the logs here ?

also is it possible to change the mac limit to 5 or so ?

if possible can u make it up with 4 or 5 and check ?

regds

Purple

Re: strange mac address causing err-disable

It should tell you in the logg why the port is err-disableing the port . Could be as simple as speed/duplex mismatches on the port if they are causing something like a lot of late collisions the switch will err-disable the ports . Check the switch and nic settings for these devices .

New Member

Re: strange mac address causing err-disable

The log points to port vilation which it should as

it see a diffrent mac, but the real mac did not change, some how corruption has occured and the port has some how seen a diffrent mac? even thought no one has changed the device on the port.

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