It is possible in 17.9.x to get a 9800-40 or 9800-80 in an HA SSO pair (with RMI) to have a previous SMU version APSP being distributed to APs as the active image, so for example I'm on 17.9.3 but APs are downloading 17.9.1 and joining the controller...

Could everyone reading this with Catalyst AX series APs and a 9800 WLC do "show ap slots" and look for APs that have the slot 1 radio showing up as "802.11b/g" ? For example an affected AP will look like this in the output of "show ap slots":ap-name ...

DNAC is pushing "wireless feature-usage enable" to 9800 WLCs now, it's not in the command reference even for 17.11. Seeing this on DNAC 2.3.3.5 and 9800-40 17.9.3.Not sure what it does. In CLI help it's described as "Dashboard Feature Usage" which is...

Output of wireless related show commands like 'show wireless client summary detail', 'show ap dot11 5ghz summary', or 'show ap summary' on the 9800 CLI is very slow. It takes ~42 seconds to display data on ~2700 clients on a 9800-40 if you disable pa...