Mac flooding

[Rajesh]

In a 2960 switch a user connected port is detected more entries of unknown mac addresses we checked the user PC entirely there is no suspicious software, and we also connected the user pc to a isolated switch and monitored no issues found what would be the reason for the mac flooding. 

[MHM Cisco World]

run port-security max mac =1

[Ramblin Tech]

Check the OUIs of the unknown MAC addresses to see if that helps track down their origin.

[Rajesh]

we checked Many MAC are unkown and some are showing as Xerox company