Controller Based WLANs

Product and Software: This article applies to all Aruba controllers and ArubaOS versions. 

To query what is being cached for a particular MAC address: 
show dot1x supplicant-info pmkid <client mac> 

To clear the PMK cache for all clients on the controller for all APs: 
aaa authentication dot1x clear 

To clear the PMK cache for 1 client on the controller for all APs: 
aaa authentication dot1x clear <client mac> 

Example: 
(Aruba) # show dot1x supplicant-info pmkid   00:03:2a: 02:50:e3 

PMKID Table 
----------- 
MAC                BSSID              PMKID 
---                -----              ----- 
00:03:2a:02:50:e3  00:1a:1e:11:74:a1 
9e:d5:ca:a3:ae:b3:01:ab:e1:cd:ad:e3:f9:35:8d:b1 
00:03:2a:02:50:e3  00:1a:1e:97:e5:41  29:f9:75:88:29:aa: 
3d:e2:a1:d4:b9:1b:3c:94:02:81 
00:03:2a:02:50:e3  00:1a:1e:a2:cb:a1  45:a7:d1:a4:f9:83:0f:6e: 
09:1d:f8:93:d3:f2:75:89 
00:03:2a:02:50:e3  00:1a:1e:a2:e8:c1  8d:85:04:0a:fb:36:cb:d8:fd: 
49:b9:b5:8e:d6:23:0c 
00:03:2a:02:50:e3  00:1a:1e:8d:5b:01  54:65:8f:7f: 
82:53:2b:eb:a7:17:b5:c4:e6:66:1a:29 
00:03:2a:02:50:e3  00:1a:1e:11:5f:01  96:0e:4a:5e: 
3f:d7:f9:73:68:0c:c2:c8:99:a8:21:49 
00:03:2a:02:50:e3  00:1a:1e:a6:5b:c1  ee:a8:11:cc:ae:25:d5:45:66:6b: 
47:ca:af:c3:38:71 
00:03:2a:02:50:e3  00:0b:86:e7:dc:21  fd:48:4c:9e:b5:ce:af: 
23:e3:76:e9:ee:e9:52:84:f5 
00:03:2a:02:50:e3  00:1a:1e:a2:cb:41  a4:0a:37:aa:2d:9f:34:bf: 
0d:a0:47:25:aa:72:77:7e 

(ethersphere-lms4) #aaa authentication dot1x clear 00:03:2a:02:50:e3 

(ethersphere-lms4) # show dot1x supplicant-info pmkid   00:03:2a: 
02:50:e3 
No cached PMKID for Supplicant (00:03:2a:02:50:e3)