User's Manual

414 | Virtual APs Dell Networking W-Series ArubaOS 6.4.x| User Guide
Troubleshooting Fast BSS Transition
ArubaOS provides various troubleshooting options to verify the Fast BSS Transition functionalities.
In decrypt-tunnel mode and bridge mode, each r0 key generates up to four r1 keys and the controller pushes
each r1 key to the corresponding AP. A few commands are added to help verifying the pushing functionality:
Execute the following command to view all the r1 keys that are stored in an AP:
(host)(config) #show ap debug dot11r state
[ap-name <ap-name> | ip-addr <ip-addr>]
You can filter the output based on the AP name, BSSID, or IP address.
(host)(config) #show ap debug dot11r state ap-name MAcage-105-GL
Stored R1 Keys
--------------
Station MAC Mobility Domain ID Validity Duration R1 Key
----------- ------------------ ----------------- ------
00:50:43:21:01:b8 1 3568 (32): 94 ff 18 0a 5f 47 8b 3e 95
2b 93 31 bd
44 58 fe fe 6a ad aa 1d d7 29 94 fb 5b 7c 15 76 66 d2 1f
You can use the following command to remove an r1 key from an AP when the AP does not have a cached r1
key during Fast BSS Transition roaming.
(host) #ap debug dot11r remove-key <sta-mac> ap-name <ap-name> | ip-addr <ip-addr>
(host) #ap debug dot11r remove-key 00:50:43:21:01:b8 ap-name MAcage-105-GL
Execute the following command to check if the r1 key is removed from the AP:
(host)(config) #show ap debug dot11r state ap-name MAcage-105-GL
Stored R1 Keys
--------------
Station MAC Mobility Domain ID Validity Duration R1 Key
----------- ------------------ ----------------- ------
Execute the following command to view the hit/miss rate of r1 keys cached on an AP before a Fast BSS
Transition roaming. This counter helps to verify if enough r1 keys are pushed to the neighboring APs.
(host)(config) #show ap debug dot11r efficiency <client-mac>
(host)(config) #show ap debug dot11r efficiency
Fast Roaming R1 Key Efficiency
------------------------------
Client MAC Hit (%) Miss (%)
---------- ------- --------
00:50:43:21:01:b8 0 (0%) 0 (0%)
SSIDProfiles
A Service Set Identifier (SSID) is the network or WLAN that any client sees. A SSID profile defines the name of
the network, authentication type for the network, basic rates, transmit rates, SSID cloaking, and certain WMM
settings for the network.