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.

New Member

Wlan Controller failover

Hi friends It´s posible to reduce the AP heartbeat to 1 second in the soluction Controller Failover, which is by default 30 second.

Marco..

1 REPLY
Hall of Fame Super Red

Re: Wlan Controller failover

Hi Marco,

I believe the ability to change the heartbeat timer was added in the

5.0 WLC release code. It is possible to reduce down to 1 second but

may not be highly recommended due to excessive AP failovers and

network traffic;

Note: The heartbeat message is similar to a keepalive message. The AP heartbeat is set to 30 seconds by default. You can adjust this heartbeat time,           down to 1 second.

Ifa WLC goes down, all the APs that are registered to that WLCautomatically switch to the other WLCs in the mobility group. When the primary controller comes back on, the APs fall back to it.However, this operation takes 30 seconds. During this period oftime, the service to the APs is interrupted as the APs rejoin theprimary WLC.

From this excellent doc;

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

I think Dennis captures the ramifications very well

https://supportforums.cisco.com/message/1273540#1273540

Cheers!

Rob

268
Views
0
Helpful
1
Replies
CreatePlease login to create content