How to enable and verify the preferred master on Aruba IAP using CLI?

Aruba Employee
Requirement:

This feature is available on Instant APs with InstantOS version 6.3.1.1-4.0 and above. Hence it is mandatory for the IAPs to be running minimum 6.3.1.1-4.0.



Solution:

Preferred Master feature is used to manually provision an IAP as the master IAP. Manual assignment works well in an environment that requires a specific AP with a lower load, an AP with more capable hardware, or an AP with an alternate uplink to always function as the master. The AP that you manually select as the master is known as the preferred master. As long as the preferred master is online, it is the cluster master. If the preferred master goes down because of an uplink failure, the default reelection algorithm elects a new AP as the master. When the preferred master comes back online, it becomes the cluster master again, and the AP that was automatically elected as the
master through the reelection algorithm reboots to rejoin the cluster as a regular member AP.

Note: Instant AP on which "Preferred Master" is enabled, need to be restarted. By default Preferred Master feature is disable.



Configuration:

Enable:

To enable the preferred master use the following command 

Aruba-Instant# iap-master

Disable:

To disable the preferred master use the following command

Aruba-Instant# no iap-master


Note: This command is applicable only from Privilege mode of the Command Line Interface (CLI).



Verification

To check if preferred master is enabled/disabled use the following command

Aruba-Instant# show ap-env

Antenna Type:Internal
name:Aruba-Instant
wifi0_arm_channel:161
wifi0_arm_power:23
disable_prov_ssid:1
mesh-ldart-disable:1
iap_master:1            <---------------- Indicates "preferred master" is enabled
Aruba-Instant#

Note: If preferred master is disabled we will not see "iap_master:1" in the "show ap-env" output

When preferred master is disabled

Aruba-Instant# show ap-env

Antenna Type:Internal
name:Aruba-Instant
wifi0_arm_channel:161
wifi0_arm_power:23
disable_prov_ssid:1
mesh-ldart-disable:1
Aruba-Instant#
Version history
Revision #:
2 of 2
Last update:
‎04-02-2017 11:18 PM
Updated by:
 
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