Question(s):
- What version of ArubaOS is this?
- Is this controller a hotspot where thousands of devices connect and disconnect randomly?
The message means that at the time of the message, the process that classifies device type is not keeping up with the amount of devices going and coming. The impact is that Client Match will not know what type of device is connecting temporarily, which is probably cosmetic. By the time you see the message, it probably has caught up with classification already. If you want, you can open a TAC case and reference bug #114072.