Hello!
I have such problem.
Members (№ 1 and № 2) are connected to different switches. At the beginning of the day the user number 2 turned on his computer before user number 1 and for some reason received from the DHCP IP-address of the first user. After that, the users 1 port went to the error-disable state. Shutdown and no shotdown the port fails, the port immediately become error-disable. The problem disappeared only after manually updating the IP to the user's PC number 1 and the off / on the port. User number 2 worked fine all this time. Why can occur port security operation at the mac-address of another port?
Log:
09:07:58: %PM-SP-4-ERR_DISABLE: psecure-violation error detected on Gi4/9, putting Gi4/9 in err-disable state
09:07:58: %PORT_SECURITY-SP-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 6cf0.4927.aba1 on port GigabitEthernet4/9.
09:07:58: %PM-SPSTBY-4-ERR_DISABLE: psecure-violation error detected on Gi4/9, putting Gi4/9 in err-disable state
Ports configuration:
№1:
interface GigabitEthernet4/9
switchport
switchport access vlan 2
switchport mode access
switchport port-security
switchport port-security mac-address sticky
switchport port-security mac-address sticky 4437.e655.e571
speed 100
duplex full
no snmp trap link-status
end
№2:
interface GigabitEthernet5/2
switchport
switchport access vlan 2
switchport mode access
switchport port-security
switchport port-security mac-address sticky
switchport port-security mac-address sticky 6cf0.4927.aba1
speed 100
duplex full
no snmp trap link-status
Thank you for help!
