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Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference
OL-27880-02
Chapter F Commands
feature port-security
feature port-security
To enable port security on Layer 2 interfaces, use the
feature port-security
command. To disable port
security, use the
no
form of this command.
feature port-security
no feature port-security
Syntax Description
This command has no arguments or keywords.
Command Default
Disabled
Command Modes
Global configuration mode
Command History
Usage Guidelines
Use the port security feature to secure a port by limiting and identifying the MAC addresses of the
switches that are allowed to access the port.
You can enable port security on a virtual port channel (vPC) port only if the following occurs:
•
Port security is enabled on both the vPC peers
•
Port security is enabled on the vPC port on both the vPC peers.
This command does not require a license.
Examples
This example shows how to enable port security on the switch:
switch#
configure terminal
switch(config)#
feature port-security
switch(config)#
This example shows how to disable port security on the switch:
switch#
configure terminal
switch(config)#
no feature port-security
switch(config)#
Related Commands
Release
Modification
5.2(1)N1(1)
This command was introduced.
Command
Description
show feature
Displays the features that are enabled or disabled on the switch.
