08-08-2012 02:37 PM - edited 03-16-2019 12:37 PM
I am having an issue where I have a switch that won't recognize a new phone I am installing. The port provides power, but it is in a down state. Below is the debug ilpower events output when I plug in the phone:
719208: Aug 8 12:17:32.954 CDT: ILP uses AC Disconnect(Fa0/12): state= ILP_SHUT_OFF_S, event= CLI_START_DETECT_EV
719209: Aug 8 12:17:32.963 CDT: ILP uses AC Disconnect(Fa0/12): state= ILP_DETECTING_S, event= CLI_START_DETECT_EV
719210: Aug 8 12:17:33.466 CDT: ILP uses AC Disconnect(Fa0/12): state= ILP_DETECTING_S, event= IEEE_CLASS_DONE_EV
719211: Aug 8 12:17:33.466 CDT: %ILPOWER-7-DETECT: Interface Fa0/12: Power Device detected: IEEE PD
719212: Aug 8 12:17:33.541 CDT: ILP uses AC Disconnect(Fa0/12): state= ILP_IEEE_PD_DETECTED_S, event= IEEE_PWR_GOOD_EV
719213: Aug 8 12:17:34.959 CDT: %LINK-3-UPDOWN: Interface FastEthernet0/12, changed state to down
Any ideas?? It seems the the switch doesn't recognize it as a Cisco IP phone.
Solved! Go to Solution.
08-08-2012 09:51 PM
Not sure why it is showing up at Not Completed.
On a 3750X, "Not Completed" will come up if the cable tested is really, really bad.
08-08-2012 03:22 PM
Check if pins are bent inside the phone socket. Or it can be a faulty phone.
08-08-2012 03:44 PM
Looks like it's a faulty cable.
Do you have happen to have a 3560G/E/X or 3750G/E/X in nearby for you to test? The appliance need not be PoE.
08-08-2012 07:29 PM
I tried various cables, plus I have it plugged directly into the switch, so it can't be a bad drop.
I forgot to mention that when I plug it into a 3750X stack that I have in a different IDF, it comes right up. Seems to me that it is an issue with the switch, however, I also tried using a power brick with poe disabled on that port and I am still getting the "ethernet disconnected" message. I can plug my laptop into the port with no issues.
08-08-2012 07:49 PM
I forgot to mention that when I plug it into a 3750X stack that I have in a different IDF, it comes right up. Seems to me that it is an issue with the switch, however, I also tried using a power brick with poe disabled on that port and I am still getting the "ethernet disconnected" message. I can plug my laptop into the port with no issues.
Are you using the same cable when you plugged the phone directly to the 3750X?
I tried various cables, plus I have it plugged directly into the switch, so it can't be a bad drop.
Can you explain the physical cabling? Do you mean something like this:
switch <--> patch cable <--> patch panel <--> horizontal cabling <-> patch panel <--> cable <--> phone
08-08-2012 07:54 PM
Yes, I used the same cable that I used on the 3750X.
To avoid any cabling faults, it is plugged directly into the switch.
switch <--> patch cable <--> phone
I know this is a bit bizzare...
08-08-2012 08:03 PM
Yes, I used the same cable that I used on the 3750X.
Coool!
Plug it back to the 3750X and run the following commands:
1. Command: test cable tdr interface
2. Wait for approximately 5 to 7 seconds;
3. Command: sh cable tdr interface
4. Post the output to #3.
08-08-2012 08:17 PM
Here you go:
BMR_1219_SW#sh cable-diagnostics tdr interface gi2/0/23
TDR test last run on: August 08 22:11:54
Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi2/0/23 auto Pair A N/A N/A Not Completed
Pair B N/A N/A Not Completed
Pair C N/A N/A Not Completed
Pair D N/A N/A Not Completed
08-08-2012 09:05 PM
You got this result from a 3750X?
Wow. That's a bad cable run if you have waited 7 seconds and you get "Not Completed" result.
So if you plug the phone directly to the 3750X using the same patch cable, it works, right?
08-08-2012 09:34 PM
Phone is up and running on the 3750X. Not sure why it is showing up at Not Completed.
08-08-2012 09:51 PM
Not sure why it is showing up at Not Completed.
On a 3750X, "Not Completed" will come up if the cable tested is really, really bad.
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