Cisco MDS 9000 Series Configuration Manual page 247

Configuring Port Security
Step 6
Repeat Step 1 through Step 5 for all switches in the fabric.
Enabling Port Security
By default, the port security feature is disabled in all switches in the Cisco MDS 9000 Family.
To enable port security, follow these steps:
Procedure
Step 1 switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# feature port-security
Enables port security on that switch.
Step 3
switch(config)# no feature port-security
(Optional) Disables (default) port security on that switch.
Port Security Activation
This section includes the following topics:
Activating Port Security
To activate the port security feature, follow these steps:
Procedure
Step 1
switch# configure terminal
switch(config)#
Enters configuration mode.
Step 2 switch(config)# port-security activate vsan 1
Activates the port security database for the specified VSAN, and automatically enables auto-learning.
Step 3 switch(config)# port-security activate vsan 1 no-auto-learn
Activates the port security database for the specified VSAN, and disables auto-learning.
Cisco MDS 9000 Series Security Configuration Guide, Release 8.x
Enabling Port Security
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