04-04-2014 01:35 PM - edited 07-05-2021 12:37 AM
Hi All,
I am facing a weird kind of situation. At one of my client side, we have Cisco AIR-2602E APs with ANT-2566 patch antennas. At one IDF, where Cisco 2960X are installed, the APs are not powering up when Antenna is attached. Once the Antenna is removed, the APs come up and then when Antenna is attached, it works fine. I have configured the port with "power inline port 2x-mode" command as well, but no use. Is there any issue with the Switch or AP?
Regards, Sohail
04-04-2014 03:20 PM
With the antennas attached, go to your switch and post the output to the command "sh power inline <port>".
I'm suspecting you have a faulty cable.
04-05-2014 10:10 PM
Currently, this is the status of the port.
#show power inline g1/0/1
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1 auto off 0.0 n/a n/a 30.0
Interface AdminPowerMax AdminConsumption
(Watts) (Watts)
---------- --------------- --------------------
Gi1/0/1 30.0 30.0
04-06-2014 03:22 PM
Uhhhhh ... That's not the right output.
Output above shows NO POWERED-DEVICE is connected to Gi 1/0/1.
So where is the AP connected to?
04-08-2014 08:02 AM
just a guess...
try to disable CDP at this port
04-08-2014 08:10 AM
what categorie is the LAN-cable? (you'll need cat6a)
at the switch try speed 100 on switchport... if it's working then, you're cable isn't cat6a
04-08-2014 04:11 PM
if it's working then, you're cable isn't cat6a
This assumption isn't totally accurate.
I can have a Cat6/6a cable and if I disconnect the GigabitEthernet wires does this mean that my wire is NOT Cat6a? Cat6/6a doesn't dictate what speed is detected. Your cable can be detected to run 10/100/1000 Mbps.
04-08-2014 09:04 PM
04-08-2014 09:26 PM
if the cable is cat5 for example it cannot deliver enough power through at 1gbit.
Power? You mean PoE? If you are talking about PoE (through the "eyes" of a Cisco switch) then this is totally incorrect.
PoE is pushed through the wire using the third cable pair (aka Pair C) and GigabitEthernet is pushed through the wire using the fourth cable pair (aka Pair D).
It doesn't matter if your cable is Cat5/5e, Cat6/6a, the results are still the same.
04-06-2014 08:16 AM
please open TAC case.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: