WLC failover

Answered Question
Jan 13th, 2009
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I have 2 WLC, when i shut down the primary WLC, the 1231 AP didn't register to the backup WLC. All of the 1242 AP can register to the backup WLC. I wonder if the 1231 doesn't support the WLC failover.

Correct Answer by Stephen Rodriguez about 8 years 3 months ago

take a look under the Security tab, AP Policies. Make sure, if there is an SSC on the primary, that it also exists on the secondary.

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Rob Huffman Tue, 01/13/2009 - 07:08
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Hi Yang,


The 1231 should support failover just like the 1242's. Can you please check the second config listed below;


WLAN Controller Failover for Lightweight Access Points Configuration Example


Configure


1. Configure Mobility Groups for the WLCs


2. Assign Primary, Secondary, and Tertiary Controllers for the Lightweight AP


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



Hope this helps!

Rob

cscyangyu Tue, 01/13/2009 - 07:14
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I configured the WLCs the same as this Doc, but after the primary WLC was shutdown, the 1231 APs

were shut down also . I checked the 1231 AP and 1242 AP . There is no difference between 1231 and 1242's configuration except the 1231 support b/g/n &a/n, 1241 only support a/g/n.

Correct Answer
Stephen Rodriguez Tue, 01/13/2009 - 09:05
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take a look under the Security tab, AP Policies. Make sure, if there is an SSC on the primary, that it also exists on the secondary.

cscyangyu Tue, 01/13/2009 - 09:10
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Yes, you are right , The SSC is enabled on the Primary WLC, but not on the Backup WLC. Thank you very muchh , i will enable SSC on the backup WLC and test it at the weekend.

Thank your guys help .

ceracaza08 Sun, 01/29/2012 - 22:05
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Can we do the same thing with WCL 4400 and 5500 series for failover? We have 1 existing 4400 WLC and we wanted to purchase another 1 for fail-over as well as backup. But right now, 4400 is EOL already. The only option is to have the 5500 WLC.


So if you do have previous set-up like this, so I would need your inputs.. Otherwise, same as usual, will gonna test to work this out.

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