How to determine if AP is operating in 4x4:4

[Dennis]

- 3935i-ROW on FW 10.41.06.0013
- patched to HP J9148A 2910al-48G-PoE+ Switch

AP Inventory report shows LAN1 using AF and not AT. Switch is capable of delivering 33W on a port. I'm still investigating but it appears disabling LLDP PoE negotiation on the HP switch via command:
no lldp config dot3TlvEnable poe_config... resolves the issue and AP Inventory report shows LAN1 using AT.

I just want to be certain that after doing this the AP is indeed operating in 4x4:4 MU-MIMO. Is there a way to tell, perhaps via logs on the AP?

[Ronald_Dvorak]

could you please post a screenshot of the radio#1 GUI settings for such a AP.

[Dennis]

Although channel width is set to 40Mhz the bitrate on some APs is 1.7Gb/s. The only difference I can see between these APs and the ones showing 800Mb/s is that on the 1.7Gb/s APs the setting "Active OBSS channel width adjustment" is enabled.

[Dennis]

I can confirm 40Mhz channel width and SGI.

[Gareth_Mitchell]

Dennis

Are you running 40Mhz wide channel with SGI, then this is correct, check the data rates in this table: http://mcsindex.com/

-Gareth

[Dennis]

Thank you. Showing:

Bit Rate:800 Mb/s Tx-Power:18 dBm