Hello! I have a WS-C2960X-48LPS-L and some of Panasonic VoIP phones (which are same model, same software, Class1 of PoE). Everything is okay, except there is no PoE on some switch ports.
What i have:
1. An IP phone directly connected to the switch via UTP Cat5e straight-through cable, 0.5m length to port 21 is getting the power from the switch. -> the phone is not faulty
2. The same phone connected with the same cable to port 24 is NOT getting the power from the switch. Moreover, I tried 5 different cables, no luck. Port 24 is just not putting the power into the wire. -> the problem is not in the cable itself.
3. Both ports 21 and 24 has identical configuration.-> the port 24 is maybe faulty.
4. show power inline command shows that remaining watts budget is 322.6/370. -> the switch has enough power budget to support this phone.
5. I tried "soft" reboot via reload command, no luck.
6. I tried "hard" reboot via plug out/in power cord, no luck.
7. I have upgraded the switch from 15.2(2)E5 to 15.2(4)E1, no luck.
8. I have read carefully this information and did all kind of debug ilpower, still have no clue.
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/troubleshooting/g_power_over_ethernet.html
https://supportforums.cisco.com/discussion/12343611/poe-not-working-all-ports-2960s-switch
9. Problem ports are 1,20,24.
Unfortunately, at a given time we do not have Smartnet for this 2960. So I can't open a case in the TAC. If anyone could help me, I will be very appreciate for that.
