Symptom

Log files show error message : "LLDP neighbor is bridge and its port vlan 1 mismatches with the local port vlan unspecified" for fault F0351. When CDP is enabled, a similar fault is seen for F1390 - "CDP native vlan Unspecified mismatched with the neighbor 1"

Conditions

When a external switch is connected to the leaf in the fabric via a PC/vPC

Workaround

Disable the native vlan from being advertised by the external switch connected to the leaf using 'no vlan dot1q tag native'. Shut/no shut the port to clear the faults.

Further Problem Description