Hi Pheniix, Urgently need help to understand the practical power drawn on CISCO AP : (Details are in the uploaded file) when connected to a Huawei POE switch : S2700
As per datasheet it takes 15.4 however APs are getting mid power at WLC end.
Are these compatible to each other ? Really appreciate it
Hi Andrea, I sent you the config. Please let us know when the issue is solved! :)
sh power inline
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
.
.
.
Gi2/0/13 auto on 9.5 IP Phone 8961 4 30.0
Gi2/0/15 auto on 16.8 AIR-CAP3702I-Z-K9 4 30.0
PoE Negotiation
When the AP negotiates 802.3at (high power), it always tries first to negotiate using Cisco Discovery Protocol (CDP). If the negotiation fails, the AP will attempt to negotiate using Link Layer Discovery Protocol (LLDP). LLDP is a vendor-neutral method for advertising device identity and capabilities.
So, the AP 1850 first uses CDP to get 20.9 W and reserve that amount of power. If CDP fails, the same process starts using LLDP. So, a non CDP response time out (often approaching 60 seconds) would need to occur before the LLDP negotiation starts. In both cases, the requirement is obtain 20.9 W power.
If the AP has enough power, it shows Full Power in the PoE settings