AP3935i-ROW on 08H20G4-24P, AP powered by AF instead of AT PS

[Ronald_Dvorak]

I've connected 2x AP3935i-ROW to a 08H20G4-24P but it looks like that the APs don't get enough power - as you'd see in the 2nd screenshot the switch detects a 802.3at device.

4 Nov 24 18:31:48 172.24.24.101 events: Access Point AP Serial Number 1628Y-1033500000: 15 sec in cycle 240: Alarm log cleared. Logging revision changed
22 Nov 24 18:31:48 172.24.24.101 events: Access Point AP Serial Number 1628Y-1033500000: 20 sec in cycle 240: AP powered by AF instead of AT PS, entering low power mode(2x2 R1,2x2 R2) 0

AP & switch run latests software - this is my home setup - I don't have another switch available that supports 802.3at.

-Ron

[Ronald_Dvorak]

Hi Pascal,

could be that this helps...

https://gtacknowledge.extremenetworks.com/articles/Q_A/How-to-enable-LLDP-Layer-2-classification

from above KB article:
configure lldp ports advertise vendor-specific med capabilities
configure lldp ports advertise vendor-specific med power-via-mdi
configure lldp ports advertise vendor-specific dot3 power-via-mdi with-classification
enable lldp ports

If not could you please tell us the exact switch model and software version.

-Ron

[Pascal_Lurquin]

and for XOS ?

I'm using 3935i but with the first two commands, it's only in low power mode

configure lldp ports 1:2 advertise vendor-specific med capabilities
configure lldp ports 1:2 advertise vendor-specific med power-via-mdi

May is it necessary to reboot the AP ?

[Ronald_Dvorak]

Thanks guys now the AP tx with full power.

Here the settings from the 800series that I've used....

Wish u all a great weekend,
Ron

[Erik_Auerswald]

Hi Ron,

to check LLDP on the switch side via LLDP you can use:
show lldp local_ports 6-7 mode detailedTo check what the AP sends to the switch:
show lldp remote_ports 6-7 mode detailedErik