Controller Based WLANs

Environment- It is applicable to controllers running 6.x version

Answer- Its the “RF" distance between two Aps (in dB). Measured by Aps when they hear OTA updates from other Aruba Aps which has tx power of the sending AP. Receiving AP will calculate path loss based on measured received signal for the known tx power. Higher the number, farther the APs

show ap arm neighbors command:
ARM Neighbors
-------------
bssid              essid       channel  rssi  tx-power  PL (dB)  AP Flags  Last Update 
-----              -----       -------  ----  --------  -------  --------  ------------
6c:f3:7f:45:57:20  7SPOT       1        8     0         0        Passive
6c:f3:7f:56:7e:a0  7SPOT       1        9     0         0        Passive
6c:f3:7f:56:7e:a1  NTT-SPOT    1        12    0         0        Passive
00:24:6c:80:77:c1  NTT-SPOT    1        9     0         0        Passive
6c:f3:7f:45:57:21  NTT-SPOT    1        8     0         0        Passive
6c:f3:7f:44:91:11  NTT-SPOT    1        9     0         0        Passive
00:24:6c:2b:fd:e8  qa-mv-vap3  161      5     9         98       Passive
00:24:6c:80:4d:62  docomo      1        10    0         0        Passive