Port Security Guidelines and Restrictions
When configuring port security, follow these guidelines:
•Port security supports private VLAN (PVLAN) ports.
•Port security supports IEEE 802.1Q tunnel ports.
•Port security does not support Switch Port Analyzer (SPAN) destination ports.
•Port security does not support EtherChannel port-channel interfaces.
•Port security and 802.1X port-based authentication cannot both be configured on the same port:
•Port security supports nonnegotiating trunks.
https://www.cisco.com/en/US/docs/general/Test/dwerblo/broken_guide/port_sec.html
Port Security Guidelines and Restrictions
Follow these guidelines when configuring port security:
•A secure port cannot be a trunk port.
•A secure port cannot be a destination port for Switch Port Analyzer (SPAN).
•A secure port cannot belong to an EtherChannel port-channel interface.
•A secure port and static MAC address configuration are mutually exclusive.
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