We have a site with a WLC 4400 and we would like to setup a Controller failover. The WLC 4400 is EOS/EOL and the replacement available is WLC 5508. Can someone advice me on how to configure these units in Primary /Secondary mode so that if any of the Controllers fail, the other one can take over?
As mention before the WLC do not need to be the same so that the access points can faillover from one WLC to the other.
The import thing is to have the WLCs running on the same code so that once the APs move from one WLC to the other they do not need to download the code the WLC has and also make sure that you have the WLAN configuration the same on both and correct information for primery, secondary, etc WLC.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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