Wireless Access

Can somebody please tell me the difference between the POE Operational State and POE Hardware State for an AP? 

 

Operational State POE-AT: No restrictions (Overridden by LLDP)
----------------- --------------------------------------------
Current HW State POE-AF: One Ethernet port disabled; USB port disabled; 1x1 chain for 2.4GHz; 16dBm for 5GHz
LLDP Negotiated POE Power 25.0W

 

In our case, Operational indicates 802.3at power, but Hardware states 802.3af. Looking to understand if the AP is actually running in power-save mode or not, as well as why hardware would only show 802.3af when LLDP negotiates 802.3at.

The result of hardware POE negotiation was 802.3af (class 3 or lower), but after software negotiation (LLDP) the state was upgraded to 802.3at (class 4) with a negotiated power budget of 25.0W.

Switches can use hardware or software negotiation to deliver more than the basic 802.3af POE budget. An AP needs to support both.

Thank you for clarifying! All of the other documentation I found showed POE-AT listed for both so I wasn't sure if I was missing something, but sounds like LLDP is doing it's job.

Thanks again.