Disabling Auto-Learning; Auto-Learning Device Authorization - Cisco Nexus 5500 Series NX-OS Configuration Manual

Configuring Port Security

Disabling Auto-Learning

You can disable auto-learning.
Procedure
Step 1
Step 2

Auto-Learning Device Authorization

The following table summarizes the authorized connection conditions for device requests.
Table 34: Authorized Auto-Learning Device Requests
Condition
1
2
3
4
5
6
7
OL-30895-01
Command or Action
configure terminal
Example:
switch# configure terminal
switch(config)#
no port-security auto-learn vsan vsan-id
Example:
switch(config)# no port-security
auto-learn vsan 23
Device (pWWN, nWWN,
sWWN)
Configured with one or
more switch ports
Not configured
Configured or not
configured
Configured to log in to
any switch port
Not configured
Cisco Nexus 5500 Series NX-OS SAN Switching Configuration Guide, Release 7.x
Purpose
Enters global configuration mode.
Disables auto-learning and stops the switch from
learning about new devices that access the switch.
This command enforces the database contents based
on the devices learned up to this point.
Requests Connection to Authorization
A configured switch port Permitted
Any other switch port Denied
A switch port that is not Permitted if auto-learning
configured enabled
Denied if auto-learning
disabled
A switch port that allows Permitted
any device
Any port on the switch Permitted
A port configured with Denied
some other device
Auto-Learning
253