topic WLAN Controller Redundancy in Wireless

WLAN Controller Redundancy

MCentrick2010 — Sun, 04 Jul 2021 01:39:03 GMT

What is the method to provide Redundancy to the WLAN controller

function?

Can the Unified AP use a backup WLAN controller? In this case, is configuration of the two controllers automatically synchronized?

Re: WLAN Controller Redundancy

Rob Huffman — Tue, 23 Mar 2010 17:47:41 GMT

Hi Andres,

In the WLC world this is how an AP is covered in case one WLC fails. It is not without some "downtime" in case of failure but both Controllers are active. You have to keep in mind that an AP can only be registered to one WLC at a time so this is the best that you can do When one WLC fails the AP then has to re-register with the backup, this is not a completly seemless process.

This has some really good info;

WLAN Controller Failover for Lightweight Access Points Configuration Example

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008064a294.shtml#c4

For newer WLC Release versions (there is also)

Wireless LAN Controller and Light Weight Access Points Failover Outside the Mobility Group Configuration Example

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00809817ca.shtml

Cheers!

Rob

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