Why is the TX power for IAP exceeding the max-tx-power set in the ARM profile?

Aruba Employee
Problem:

IAP is exceeding the power levels set  in ARM profile.

 



Diagnostics:

 

We see that the ARM profile clearly states that power should be limited to 12

arm
 wide-bands none
 min-tx-power 9
 max-tx-power 12
 band-steering-mode prefer-5ghz
 air-time-fairness-mode fair-access
 client-aware
 scanning

 

 
 However, on G band we see it is exceeding the max power exceeding 12 on G band:

 show ap bss-table

------------------

bss                ess           port  ip            phy    type  ch/EIRP/max-EIRP  cur-cl  ap name            in-t(s)  tot-t

---                ---           ----  --            ---    ----  ----------------  ------  -------            -------  -----

94:b4:0f:e8:2e:70  #test          ?/?   192.168.1.64   a-VHT  ap    52/12/22          0       W-BC03262-APS-001  0        7d:1h:54m:6s

94:b4:0f:e8:2e:71  #test1         ?/?   192.168.1.64   a-VHT  ap    52/12/22          1       W-BC03262-APS-001  0        7d:1h:54m:6s

94:b4:0f:e8:2e:60  #test          ?/?   192.168.1.64   g-HT   ap    11/21/21          1       W-BC03262-APS-001  0        7d:1h:54m:6s

94:b4:0f:e8:2e:61  #test1         ?/?   192.168.1.64   g-HT   ap    11/21/21          0       W-BC03262-APS-001  0        7d:1h:54m:6s

 



Solution

 

This issue can happen when below conditions are met:

 

1. We are using Aruba instant OS below the versions 6.4.4.3-4.2.2.0.

2. We set CSA without configuring dot11h first.

 

Thus we need to:

 

1. Upgrade to 6.4.4.3-4.2.2.0 and above. From this code, we will receive an error if we try to configure CSA without dot11h:

 

ac:a3:1e:c3:2f:50# conf t
ac:a3:1e:c3:2f:50 (config) # rf dot11a-radio-profile
ac:a3:1e:c3:2f:50 (RF dot11a Radio Profile) # csa 5
ac:a3:1e:c3:2f:50 (RF dot11a Radio Profile) # exit
ac:a3:1e:c3:2f:50# commit apply
committing configuration...
Error: Enable dot11h first before set csa-count in dot11a profile.

 

OR

2. Remove CSA config if dot11h is not configured.

Version history
Revision #:
2 of 2
Last update:
a week ago
Updated by:
 
Labels (1)
Contributors
Search Airheads
cancel
Showing results for 
Search instead for 
Did you mean: