topic Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch in Wireless

Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Mon, 05 Jul 2021 19:49:30 GMT

Hello,

I noticed on our 5508 WLC that an access point on the roof of one of our buildings is down (roof terrance). On the PoE switch is now shows Ieee PD instead of AIR-CAP1532E-EK9

I have done a shut and no shut and I get the same. Nothing shows within CDP.

I seems to of happened when we rebooted the PoE switch one eve.

The place is shut due to Covid19.

I did a cable test too

Any other things I can try?

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Leo Laohoo — Wed, 25 Nov 2020 09:59:55 GMT

101 metres???
Exactly what switch is this and what exact firmware is the switch running on?

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Mark Elsen — Wed, 25 Nov 2020 10:31:08 GMT

- Can also happen when the ap does not complete start-up for some reason , you could try a longer shut-state of the port.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Wed, 25 Nov 2020 11:43:51 GMT

It's on a roof, been working for about 4 years. There are 8 floors in this office, comms is on the 7th.

Model - WS-C3650-48PQ

FM 03.06.05E cat3k_caa-universalk9

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Wed, 25 Nov 2020 11:44:28 GMT

I suspect it is stuck on rommon, but I will try that too.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Leo Laohoo — Wed, 25 Nov 2020 12:05:47 GMT

Can you post the complete output to the following command:

sh interface Gi2/0/1 controll

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Wed, 25 Nov 2020 12:51:49 GMT

sh interface Gi2/0/1 controll
GigabitEthernet2/0/1 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 00f2.8b18.2901 (bia 00f2.8b18.2901)
Description: AP Port
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Class-based queueing
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
Transmit GigabitEthernet2/0/1 Receive
0 Total bytes 0 Total bytes
0 Unicast frames 0 Unicast frames
0 Unicast bytes 0 Unicast bytes
0 Multicast frames 0 Multicast frames
0 Multicast bytes 0 Multicast bytes
0 Broadcast frames 0 Broadcast frames
0 Broadcast bytes 0 Broadcast bytes
0 System FCS error frames 0 IpgViolation frames
0 MacUnderrun frames 0 MacOverrun frames
0 Pause frames 0 Pause frames
0 Cos 0 Pause frames 0 Cos 0 Pause frames
0 Cos 1 Pause frames 0 Cos 1 Pause frames
0 Cos 2 Pause frames 0 Cos 2 Pause frames
0 Cos 3 Pause frames 0 Cos 3 Pause frames
0 Cos 4 Pause frames 0 Cos 4 Pause frames
0 Cos 5 Pause frames 0 Cos 5 Pause frames
0 Cos 6 Pause frames 0 Cos 6 Pause frames
0 Cos 7 Pause frames 0 Cos 7 Pause frames
0 Oam frames 0 OamProcessed frames
0 Oam frames 0 OamDropped frames
0 Minimum size frames 0 Minimum size frames
0 65 to 127 byte frames 0 65 to 127 byte frames
0 128 to 255 byte frames 0 128 to 255 byte frames
0 256 to 511 byte frames 0 256 to 511 byte frames
0 512 to 1023 byte frames 0 512 to 1023 byte frames
0 1024 to 1518 byte frames 0 1024 to 1518 byte frames
0 1519 to 2047 byte frames 0 1519 to 2047 byte frames
0 2048 to 4095 byte frames 0 2048 to 4095 byte frames
0 4096 to 8191 byte frames 0 4096 to 8191 byte frames
0 8192 to 16383 byte frames 0 8192 to 16383 byte frames
0 16384 to 32767 byte frame 0 16384 to 32767 byte frame
0 > 32768 byte frames 0 > 32768 byte frames
0 Late collision frames 0 SymbolErr frames
0 Excess Defer frames 0 Collision fragments
0 Good (1 coll) frames 0 ValidUnderSize frames
0 Good (>1 coll) frames 0 InvalidOverSize frames
0 Deferred frames 0 ValidOverSize frames
0 Gold frames dropped 0 FcsErr frames
0 Gold frames truncated
0 Gold frames successful
0 1 collision frames
0 2 collision frames
0 3 collision frames
0 4 collision frames
0 5 collision frames
0 6 collision frames
0 7 collision frames
0 8 collision frames
0 9 collision frames
0 10 collision frames
0 11 collision frames
0 12 collision frames
0 13 collision frames
0 14 collision frames
0 15 collision frames
0 Excess collision frames

LAST UPDATE 5333982740 msecs AGO

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Rich R — Wed, 25 Nov 2020 13:44:28 GMT

Yes I'd agree - most likely stuck on ROMMON for one reason or another.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Wed, 25 Nov 2020 15:30:53 GMT

I'll have to get up there and get it down and put a console cable into it. If it is in ROMMON mode what can I do to recover it?

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Scott Fella — Wed, 25 Nov 2020 16:11:28 GMT

First off, bounce the port a few times. This will disable PoE and re-enable it. Wait like 20 seconds before powering it back on and see if the helps. If the device is in rommon, you can find a lot of blogs, videos and links to what you can do. Search the forum also for “Cisco AP rommon”.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Leo Laohoo — Wed, 25 Nov 2020 23:02:20 GMT

Wait ... Something is off with this port.

What is the uptime of the switch?

According to the output there is "0" traffic since the uptime of the switch.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Andrew White — Thu, 26 Nov 2020 11:24:38 GMT

Switch has been up 8 weeks and 6 days

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Leo Laohoo — Thu, 26 Nov 2020 12:07:29 GMT

Console into the AP.
I agree with what the rest have said & the AP has gone into ROMMON.

When in ROMMON enter the command "dir" and post the complete output.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

rahulnile14 — Fri, 23 Jul 2021 17:05:10 GMT

I am also facing the exact same issue; we are using cisco 4800 WAP, I also tried to take console of the WAP;

in my case, I found out that WAP continuously reboots and never up stable.

I am still searching for the right solution; if anybody has any idea pls help...can not share the port output due to security reasons.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Leo Laohoo — Sat, 24 Jul 2021 00:44:00 GMT

@rahulnile14 wrote:

can not share the port output due to security reasons.

Console into the AP and post the complete output so we can see what the AP is doing.
Post the output we've requested above and remove the IP addresses and description.

If #1 and #2 cannot be provided due to "security reasons" then raise a TAC Case.

NOTE: For "security reasons" it is also not a good idea to post "security related" matters in forum where every person can see.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

Arshad Safrulla — Sat, 24 Jul 2021 11:49:57 GMT

I would like to recommend to hardcode the speed to 100 and duplex full, there were instances where I was mandated to work with cables longer than 90M connecting to AP's or any other POE devices, I noticed that Gig negotiation fails some times. This could be due to attenuation as well.

Make sure that you shut and no shut the ports after the changes. But in the long run it always recommended to replace the cable with shielded cables and test the cable using Fluke or any other cable tester. As a best practice I always instruct my team to keep the cable length below 90M to any endpoints.

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

rahulnile14 — Sat, 24 Jul 2021 12:49:54 GMT

##- Thanks for responding.
When I replaced the IEEE pde AP with new on same cable; new AP booted
successfully and visible on WLC,
So there is no possibility of cable fault ..Atleast in my case.

Just to mention, we are facing this on multiple APs and last option is
replacing it. -##

Re: Cisco AP down - shows as 'Ieee PD' on the PoE switch

ThomasDorsey1955 — Mon, 21 Mar 2022 15:45:28 GMT

30 second shutdown did the trick for a few of my WAPs. Guess the capacitor really needs to drain.