Cisco wireless has several types of high availability. The most interesting to me, and the newest is the HA SSO mode. This mode bonds a WLC with a special HA Sku unit. The two units share their config and synchronize certain information tables to aid in seamless Access Point and Client Station transition in the … More Cisco 2504 Wireless Controller and HA SSO Mode

I have been implementing High Availability on Cisco 5508 Controllers. The deployment has been going well. However, some remote hospitals have a pair of 5508s that are serving up the DHCP Scope for their Guest Networks. I didn’t realize this was a problem until I attempted the implementation of the HA. The site in this … More Cisco High Availability and Internal DHCP Server Service with WLC Code 7.4.121.0