topic Urgent query on Cisco AP - 3500 in Wireless

Urgent query on Cisco AP - 3500

Shafaqat Hussain — Mon, 05 Jul 2021 10:38:54 GMT

Hi All,

I have a Cisco AP - 3500 which is showing blinking red. But when i connect the same AP on the other switch interface, it works fine, I can see clients getting connected on Cisco Controller.

Can any one confirm the issue with this AP when connected on other switch.

Regards,

Shaf

Can any one confirm the issue

Leo Laohoo — Tue, 28 Jul 2015 09:24:07 GMT

Can any one confirm the issue with this AP when connected on other switch.

Nothing wrong with the AP. I'd like at the configuration of the switch.

Unless someone consoles into the AP and provides some kind of output we can all play a game of "20 questions".

I am suspecting the AP didn't get a valid IP address.

Hi Leo,Thanks for looking

Shafaqat Hussain — Tue, 28 Jul 2015 09:28:21 GMT

Hi Leo,

Thanks for looking into this.

Just wanted to know, AP is powered through Switch. But i am unable to see the mad address of the AP on the switch ARP table. Do you think that there might some cabling issue or something?

Regards,

Shaf

Are both switches PoE?. Are

ajc — Wed, 29 Jul 2015 17:03:56 GMT

Are both switches PoE?. Are you using power injector in one of the cases?.

If power injector is one of your cases, I found in the past that Power Injector State had to be enabled and override option selected (I am using Prime NCS).

thanks

Hi Abraham,I cannot see the

Shafaqat Hussain — Wed, 29 Jul 2015 17:22:53 GMT

Hi Abraham,

I cannot see the connected AP on cdp neighbours. and i ran a diagnostic. following is the output.

Is the causing the AP failing to connect to network.

Cisco#sh power inline gigabitEthernet 5/36
Available:3590(w) Used:1697(w) Remaining:1893(w)

Interface Admin Oper Power(Watts) Device Class
From PS To Device
--------- ------ ---------- ---------- ---------- ------------------- -----

Gi5/36 auto on 17.3 15.4 Ieee PD 3

Where as the other interface where AP is connected and working: I found this:

Cisco#sh power inline gigabitEthernet 7/5
Available:3590(w) Used:1697(w) Remaining:1893(w)

Interface Admin Oper Power(Watts) Device Class
From PS To Device
--------- ------ ---------- ---------- ---------- ------------------- -----

Gi7/5 auto on 17.3 15.4 AIR-CAP3502I-E-K9 3

Following is the output from cable diag command from the switch:

Cisco#show cable-diagnostics tdr interface gigabitEthernet 5/36
Interface Speed Local pair Cable length Remote channel Status
Gi5/36 0Mbps 1-2 66 +/-10m Unknown Fault
3-6 73 +/-10m Unknown Fault
4-5 72 +/-10m Unknown Fault
7-8 75 +/-10m Unknown Fault

AP is getting power, but it is not getting proper data connectivity. Is the above is the cause for the issue?

Make sure your using POE or

gohussai — Wed, 29 Jul 2015 18:27:45 GMT

Make sure your using POE or power injector , For Power injectors you have to enable this option from controller.

Make sure to change the port on the same switch ,because it can be port issue or cable. Also check you are getting the correct ip address, if so then CDP will show the information correctly.