This article applies to all the controllers running AOS version 6.3.0.0 and higher.
When a client (STA) connects to a WLAN network, it undergoes complete 802.1x authentication and obtains PMKID#1. When this STA roams to another AP, the following sequence of events take place:
NOTE: PMKID should be sent in (re)association packet for OKC to work. Some OKC capable clients may not send PMKID in the (re)association packets. In order to interoperate with such clients, Aruba controller checks to see if a PMKID has been cached for the client’s MAC address. If one is found, OKC will be performed.
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