Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

Bronze

General Questions About WLC 4400 Cluster

I've inherited a couple 4402 Wireless LAN Controllers and am in charge of getting them ship-shape. While I have some general knowledge of wireless, I have not worked with wireless controllers before and have a couple questions I was wondering if anyone could help me with:

1) How can I verify that the primary and secondary controllers are configured for failover without actually performing a test? Both do have AP Failback enabled, but I'm not sure what else to check.

2) They are currently running code 3.2.116.21. Should I stick with 3.2 or plan to move up to 4.X?

Thanks a bunch. I'm slowly working my way through the docs and answers to these would sure speed things up.

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Red

Re: General Questions About WLC 4400 Cluster

Hi Johnny,

Hope things are well with you! The steps required to configure AP Fallback are detailed quite nicely in the attached doc. I would always try to schedule a Maintenance window to test this out rather than not knowing for sure :)

WLAN Controller Failover for Lightweight Access Points Configuration Example

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

Now, for your second question, it's likely that you will want to upgrade the WLC to a newer version of code. They have gone through 4.0.x,4.1.x and the newest is 4.2.x. So 3.2 is a fair ways behind. Have a look at the WLC Release Notes;

Cisco 4400 Series Wireless LAN Controllers Release Notes

http://www.cisco.com/en/US/products/ps6366/prod_release_notes_list.html

Hope this helps!

Rob

5 REPLIES
Hall of Fame Super Red

Re: General Questions About WLC 4400 Cluster

Hi Johnny,

Hope things are well with you! The steps required to configure AP Fallback are detailed quite nicely in the attached doc. I would always try to schedule a Maintenance window to test this out rather than not knowing for sure :)

WLAN Controller Failover for Lightweight Access Points Configuration Example

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

Now, for your second question, it's likely that you will want to upgrade the WLC to a newer version of code. They have gone through 4.0.x,4.1.x and the newest is 4.2.x. So 3.2 is a fair ways behind. Have a look at the WLC Release Notes;

Cisco 4400 Series Wireless LAN Controllers Release Notes

http://www.cisco.com/en/US/products/ps6366/prod_release_notes_list.html

Hope this helps!

Rob

Bronze

Re: General Questions About WLC 4400 Cluster

Hi Rob,

Thanks for the input. TAC pointed me to the same doc, and after taking all those steps it finally worked after I erased the config on each AP. Sounds like this might be a bug on the 3.2 Controller code (I haven't looked through all the bugs, but do see there plenty of justify moving up to 4.X)

Hall of Fame Super Red

Re: General Questions About WLC 4400 Cluster

Hi Johnny,

You are most welcome! Glad to help in some very small way :)

Take care,

Rob

New Member

Re: General Questions About WLC 4400 Cluster

JohnnyLingo, there is a required upgrade path you must follow to successfully upgrade from early 3.x to newer 4.x WLC versions. see attachment for the path

Bronze

Re: General Questions About WLC 4400 Cluster

Great tip. I had tried to jump up to 4.1 and it gave me an error about the flash memory. This would explain why it failed.

972
Views
5
Helpful
5
Replies