No power on some 2960S PoE ports

oslerhoskin · ‎08-14-2014

Hi, I have a WS-C2960S-48FPD-L and for some reason some ports will not supply power, all the ports are configured exactly the same and power is set to auto on all ports. But so far there I have three ports that just won't give power. I don't see any messages in the logs showing any issues. Has anyone else seen this issue and what would be causing this. The switches are new, been in use less than 6 months.

Thanks,

Sayed

Leo Laohoo · ‎08-14-2014

Post the output to the command "sh power inline". Please indicate which port(s) are not working.

You may want to read this: How to use Time-Domain Reflectometer (TDR)

oslerhoskin · ‎08-15-2014

Hi Leo, thanks for your reply. Here's the output from "sh power inline". The ports that are not working for power are Gi1/0/5 and Gi1/0/6

Module Available Used Remaining (Watts) (Watts) (Watts) ------ --------- -------- --------- 1 740.0 281.5 458.5 Interface Admin Oper Power Device Class Max (Watts) --------- ------ ---------- ------- ------------------- ----- ---- Gi1/0/1 auto on 6.1 2 30.0 Gi1/0/2 auto on 6.1 Mitel 5340e,DN 4870 2 30.0 Gi1/0/3 auto on 6.1 2 30.0 Gi1/0/4 auto on 6.1 2 30.0 Gi1/0/5 auto off 0.0 n/a n/a 30.0 Gi1/0/6 auto off 0.0 n/a n/a 30.0 Gi1/0/7 auto on 6.1 2 30.0 Gi1/0/8 auto on 6.1 2 30.0 Gi1/0/9 auto off 0.0 n/a n/a 30.0 Gi1/0/10 auto on 6.1 2 30.0 Gi1/0/11 auto on 6.1 2 30.0 Gi1/0/12 auto on 6.1 2 30.0 Gi1/0/13 auto on 6.1 2 30.0 Gi1/0/14 auto on 6.1 2 30.0 Gi1/0/15 auto on 6.1 2 30.0 Gi1/0/16 auto on 6.1 2 30.0 Gi1/0/17 auto on 15.4 AIR-LAP1142N-A-K9 3 30.0 Gi1/0/18 auto off 0.0 n/a n/a 30.0 Gi1/0/19 auto on 6.1 2 30.0 Gi1/0/20 auto on 6.1 2 30.0 Gi1/0/21 auto on 6.1 2 30.0 Gi1/0/22 auto on 6.1 2 30.0 Gi1/0/23 auto on 15.4 AIR-LAP1142N-A-K9 3 30.0 Gi1/0/24 auto on 15.4 AIR-LAP1142N-A-K9 3 30.0 Gi1/0/25 auto on 6.1 2 30.0 Gi1/0/26 auto off 0.0 n/a n/a 30.0 Gi1/0/27 auto off 0.0 n/a n/a 30.0 Gi1/0/28 auto off 0.0 n/a n/a 30.0 Gi1/0/29 auto on 6.1 Mitel 5330e,DN 6513 2 30.0 Gi1/0/30 auto on 6.1 2 30.0 Gi1/0/31 auto on 6.1 2 30.0 Gi1/0/32 auto on 6.1 2 30.0 Gi1/0/33 auto on 6.1 2 30.0 Gi1/0/34 auto off 0.0 n/a n/a 30.0 Gi1/0/35 auto on 6.1 2 30.0 Gi1/0/36 auto on 6.1 2 30.0 Gi1/0/37 auto on 15.4 Ieee PD 0 30.0 Gi1/0/38 auto on 15.4 Ieee PD 0 30.0 Gi1/0/39 auto on 6.1 2 30.0 Gi1/0/40 auto off 0.0 n/a n/a 30.0 Gi1/0/41 auto on 6.1 2 30.0 Gi1/0/42 auto on 6.1 Mitel 5340e,DN 4281 2 30.0 Gi1/0/43 auto on 6.1 2 30.0 Gi1/0/44 auto on 6.1 2 30.0 Gi1/0/45 auto on 6.1 2 30.0 Gi1/0/46 auto off 0.0 n/a n/a 30.0 Gi1/0/47 auto off 0.0 n/a n/a 30.0 Gi1/0/48 auto on 15.4 AIR-LAP1142N-A-K9 3 30.0

Leo Laohoo · ‎08-15-2014

Do this:

1. Command: test cable tdr interface <BLAH>;

2. Wait for approximately 5 to 7 seconds;

3. Command: sh cable tdr interface <BLAH>; and

4. Post the output to #3 of both interfaces.

What IOS version are you running and post the interface configuration of both ports.

Tagir Temirgaliyev · ‎08-16-2014

I think bad patchcords or scs.

exchange patchcords in ports 4 and 5

or connect directly to switch some ip phone in ports 5 and 6