Controller Based WLANs

How do I map the power level in the ‘show ap arm history’ command to the ‘show ap bss-table’ command output?

Product and Software:This article applies to all Aruba Mobility Controllers and ArubaOS 3.3.x.

Currently, the power level in the 'show ap arm history' and 'show ap bss-table' commands do not match. For example:

(Aruba6000) #show ap arm history ip-addr 10.100.139.233

Interface :wifi0
ARM History
-----------
Reason Old channel New channel Old Power New Power Last change
------ ----------- ----------- --------- --------- -----------
P+       44+         44+          5         6       2h:3m:51s
P+       44+         44+          6         7       1h:56m:50s
P-       44+         44+          7         6       1h:13m:12s
P-       44+         44+          6         5       1h:7m:10s

Interface :wifi1
ARM History
-----------
Reason Old channel New channel Old Power New Power Last change
------ ----------- ----------- --------- --------- -----------
I         11          1           4         6       4h:34m:39s
P-         1          1           6         4       4h:28m:44s

I: Interference, R: Radar detection, N: Noise exceeded, E: Error threshold exceeded, INV: Invalid Channel,
G: Rogue AP Containment, M: Empty Channel, P+: Increase Power, P-: Decrease Power, OFF: Turn off Radio, ON: Turn on Radio

 

(Aruba6000) #show ap bss-table | include 10.100.139.233
00:1a:1e:88:0d:70 guest 0/0 10.100.139.233 a-HT ap 44+/19/23 0 1249 0 4h:44m:31s 1500 - 62
00:1a:1e:88:0d:71 ethersphere-wpa2 0/0 10.100.139.233 a-HT ap 44+/19/23 7 1249 0 4h:44m:31s 1500 - 1
00:1a:1e:88:0d:60 guest 0/0 10.100.139.233 g-HT ap 1/19/33 0 1249 0 4h:44m:31s 1500 - 62
00:1a:1e:88:0d:61 ethersphere-voip 0/0 10.100.139.233 g-HT ap 1/19/33 0 1249 0 4h:44m:31s 1500 - 1


The 'show ap arm history' command output has power level 0-9 and the 'show ap bss-table' command output has power level 0-30dbm.

To map the power level in both outputs, use this formula:

ARM power level * 3 + antenna gain = show ap bss output

(except for max-arm-power-level = 9, which is mapped to 30 dBm)


Anything that is above 24 is mapped to max, which is 30 internally.

However, this is applicable only until Aruba 3.3.x. In ArubaOS 5.0 and later, it has been enhanced to match the power values in both command outputs.

 

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Last update:
‎06-30-2014 05:55 PM
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