Creating Device Aliases; About Device Alias Distribution - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 25 Distributing Device Alias Services
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
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Creating Device Aliases

To a create a device alias in the pending database, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# device-alias database
switch(config-device-alias-db)#
Step 3
switch(config-device-alias-db)# device-alias
name Device1 pwwn 21:01:00:e0:8b:2e:80:93
switch(config-device-alias-db)# no device-alias
name Device1
switch(config-device-alias-db)# device-alias
rename Device1 Device2
To display the device alias configuration, use the show device-alias name command.
switch# show device-alias name x
device-alias name x pwwn 21:01:00:e0:8b:2e:80:93

About Device Alias Distribution

By default, device alias distribution is enabled. The device alias feature uses the coordinated distribution
mechanism to distribute the modifications to all switches in a fabric.
If you have not committed the changes and you disable distribution, then a commit task will fail. (See
Example
Example 25-1 Displays a Failed Status
switch# show device-alias status
Fabric Distribution: Disabled
Database:- Device Aliases 25
Status of the last CFS operation issued from this switch:
==========================================================
Operation: Commit
Status: Failed (Reason: Operation is not permitted as the fabric distribution is
currently disabled.)
When you perform the first device alias task (regardless of which device alias task), the fabric is
automatically locked for the device alias feature. Once you lock the fabric, the following situations
apply:
•
OL-18084-01, Cisco MDS NX-OS Release 4.x
Disabling and Enabling Device Alias Distribution, page 25-7
25-1).
No other user can make any configuration changes to this feature.
Purpose
Enters configuration mode.
Enters the pending database configuration
submode.
Specifies a device name (Device1) for the
device that is identified by its pWWN. Starts
writing to the pending database and
simultaneously locks the fabric as this is the
first-issued device alias configuration
command.
Removes the device name (Device1) for the
device that is identified by its pWWN.
Renames an existing device alias (Device1)
with a new name (Device2).
Cisco MDS 9000 Family CLI Configuration Guide
Device Alias Databases
25-5