Discarding The Changes; Activation And Auto-Learning Configuration Distribution - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Configuring Port Security

Discarding the Changes

If you discard (abort) the changes made to the pending database, the configuration remains unaffected and
the lock is released.
To discard the port security configuration changes for the specified VSAN, perform this task:
Procedure
Step 1
Step 2

Activation and Auto-Learning Configuration Distribution

Activation and auto-learning configurations in distributed mode are remembered as actions to be performed
when you commit the changes in the pending database.
Learned entries are temporary and do not have any role in determining if a login is authorized or not. As such,
learned entries do not participate in distribution. When you disable learning and commit the changes in the
pending database, the learned entries become static entries in the active database and are distributed to all
switches in the fabric. After the commit, the active database on all switches are identical and learning can be
disabled.
If the pending database contains more than one activation and auto-learning configuration when you commit
the changes, the activation and auto-learning changes are consolidated and the resulting operation may change
(see the following table.
Table 93: Scenarios for Activation and Auto-learning Configurations in Distributed Mode
Scenario
A and B exist in the
configuration database,
activation is not done and
devices C,D are logged
in.
3 The * (asterisk) indicates learned entries.
OL-16597-01
Command or Action
switch# configuration terminal
switch(config)# port-security abort vsan
vsan-id
Actions
1. You activate the port
security database and
enable auto-learning.
2. A new entry E is added
to the configuration
database.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Discarding the Changes
Purpose
Enters configuration mode.
Discards the port security changes in the specified
VSAN and clears the pending configuration
database.
Distribution = OFF Distribution = ON
configuration database = configuration database =
{A,B} {A,B}
active database = {A,B, active database = {null}
3
C , D*}
pending database = {A,B
+ activation to be
enabled}
configuration database = configuration database =
{A,B, E} {A,B}
active database = {A,B, active database = {null}
C*, D*}
pending database = {A,B,
E + activation to be
enabled}
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