Database Reactivation; Auto-Learning; About Enabling Auto-Learning - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 39 Configuring Port Security
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Database Reactivation

Tip If auto-learning is enabled, you cannot activate the database, without the force option until you disable

auto-learning.

To reactivate the port security database, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# no port-security
auto-learn vsan 1
Step 3
switch(config)# exit
switch# port-security database copy vsan 1
Step 4
switch# config t
switch(config)# port-security activate
vsan 1
Auto-learning
This section contains the following topics:
•
•
•
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About Enabling Auto-learning

The state of the auto-learning configuration depends on the state of the port security feature:
•
•
Tip If auto-learning is enabled on a VSAN, you can only activate the database for that VSAN by using the
force option.
OL-18084-01, Cisco MDS NX-OS Release 4.x
About Enabling Auto-learning, page 39-7
Enabling Auto-learning, page 39-8
Disabling Auto-learning, page 39-8
Auto-Learning Device Authorization, page 39-8
Authorization Scenarios, page 39-9
If the port security feature is not activated, auto-learning is disabled by default.
If the port security feature is activated, auto-learning is enabled by default (unless you explicitly
disabled this option).
Purpose
Enters configuration mode.
Disables auto-learning and stops the switch from
learning about new devices accessing the switch.
Enforces the database contents based on the devices
learned up to this point.
Copies from the active to the configured database.
Activates the port security database for the specified
VSAN, and automatically enables auto-learning.
Cisco MDS 9000 Family CLI Configuration Guide
Auto-learning
39-7