Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

No power on some 2960S PoE ports

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

4 REPLIES
Hall of Fame Super Gold

Post the output to the

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)

New Member

Hi Leo, thanks for your reply

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

Hall of Fame Super Gold

Do this:  1.  Command:  test

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.

I think bad patchcords or scs

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

152
Views
0
Helpful
4
Replies