04-02-2017 10:31 PM - edited 07-05-2021 06:47 AM
We have two (2) WLC 5508 currently in production, each with associated Access Points and Wireless devices. Now we would like to configure the redundancy between the two wireless controllers. I have not done configuring two devices in production with associated APs and Wireless devices so I'd like to get the opinion from the group. Shall I move/copy all APs and wireless devices to the primary WLC before configuring the redundancy? What else should we consider to successfully implement a redundancy between the 2 controllers and without affecting the existing users? Thanks in advance!
WLC #1 --- 12 APs and 170 wireless devices (roaming users between WLC#1 and WLC#2)
WLC #2 --- 8 APs and 170 wireless devices (roaming users between WLC#1 and WLC#2)
04-02-2017 10:39 PM
roaming users between WLC#1 and WLC#2
Inter-controller roaming is not recommended.
If redunancy is key, then put all the APs in one controller and enable HA SSO.
04-03-2017 12:36 AM
Hi Leo, thank you very much for the quick note and suggestion. It is really appreciated.
05-02-2017 04:01 AM
Hi again,
What is the maximum cable length allowed for redundancy? Our WLCs are located on different sites with about 1 kilometer apart but a fiber optic cable is available - just waiting for media converter and fiber patch cables to complete the connection.
Thank you
05-05-2017 03:59 AM
This depends on the software version you are running. With >7.5 you can run the redundancy port over a switched/routed network and latency isn't anymore that important.
See here for the exact details: http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-1/HA_SSO_DG/High_Availability_DG.html
The chapter named "High Availability in Release 7.5" is probably the one you're looking at.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: