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New Member

all POE devices down WS-C3560-24PS

How do I troubleshoot all POE devices down on a WS-C3560-24PS? But all ports work with non POE devices.

2 ACCEPTED SOLUTIONS

Accepted Solutions
New Member

Re: all POE devices down WS-C3560-24PS

Hi Kredwin, try using the 'show post' command. The output should

look like this:

FL-3560-11#sh post
Stored system POST messages:

Switch 1
---------

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed

POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

see if the output of that line says 'passed' or 'failed'

Hall of Fame Super Gold

Re: all POE devices down WS-C3560-24PS

This is why ...

Available:0.0(w)  Used:0.0(w)  Remaining:0.0(w)

You have a few options to try:

1.  Reboot the switch; or

2.  Upgrade to, say,  12.2(53)SE2 and find out.

Can you also post the configuration of one of the interfaces.  I know that "power inline never" may not be in your configuration but I just want to verify.

15 REPLIES
New Member

Re: all POE devices down WS-C3560-24PS

c3560-ipservicesk9-mz.122-25.SEE.bin is the image, I have another switch that has POE fine but has image c3560-ipbasek9-mz.122-25.SEE.bin, would the image have anything to do with it?

New Member

Re: all POE devices down WS-C3560-24PS

Is this a standalone switch or is it stacked?

When u look at the interfaces are they 'err-disabled'?

By rebooting the switch might do the trick. (You probably would have to schedule a change if this a production switch)

Sometimes this happens to only a few devices on my network, and I just 'shut/no shut' and unplugged the CAT6 and the interfaces come back up.

New Member

Re: all POE devices down WS-C3560-24PS

no stack, rebooted all, no err-disable on any, shut no shut tried no luck

New Member

Re: all POE devices down WS-C3560-24PS

What about the end device?

Are they IP Phones or Printers?

When you do the show int command what is displayed?

Line protocol down, down?

New Member

Re: all POE devices down WS-C3560-24PS

IP phones, sh int shows down,down, but if I plug in a laptop it goes up, so I figured this is a POE issue, but how to confirm it/ troubleshoot it.

New Member

Re: all POE devices down WS-C3560-24PS

i would probably reboot the VOIP Phones and see that fixes the issue.

The ports are actually hot which is indicated by a laptop NIC working when u connect it.

Also does the switch run DHCP on it? Which could be a reason the phone wont come up.

What happens when u connect the CAT6 to the phone does it power up on the display?

If it pwrs up then u might have a DHCP issue as the phnes can obtain a DHCP address.

New Member

Re: all POE devices down WS-C3560-24PS

Doing a "show environment power" will show the power supply stations

Doing a "show power inline" will show the PoE status of every port.

New Member

Re: all POE devices down WS-C3560-24PS

SW1#sh env power
POWER is OK

SW1#sh power inline
Available:0.0(w)  Used:0.0(w)  Remaining:0.0(w)

Interface Admin  Oper       Power   Device              Class Max
                            (Watts)                           
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1     auto   off        0.0     n/a                 n/a   15.4
Fa0/2     auto   off        0.0     n/a                 n/a   15.4
Fa0/3     auto   off        0.0     n/a                 n/a   15.4
Fa0/4     auto   off        0.0     n/a                 n/a   15.4
Fa0/5     auto   off        0.0     n/a                 n/a   15.4
Fa0/6     auto   off        0.0     n/a                 n/a   15.4
Fa0/7     auto   off        0.0     n/a                 n/a   15.4
Fa0/8     auto   off        0.0     n/a                 n/a   15.4
Fa0/9     auto   off        0.0     n/a                 n/a   15.4
Fa0/10    auto   off        0.0     n/a                 n/a   15.4
Fa0/11    auto   off        0.0     n/a                 n/a   15.4
Fa0/12    auto   off        0.0     n/a                 n/a   15.4
Fa0/13    auto   off        0.0     n/a                 n/a   15.4
Fa0/14    auto   off        0.0     n/a                 n/a   15.4
Fa0/15    auto   off        0.0     n/a                 n/a   15.4
Fa0/16    auto   off        0.0     n/a                 n/a   15.4
Fa0/17    auto   off        0.0     n/a                 n/a   15.4
Fa0/18    auto   off        0.0     n/a                 n/a   15.4
Fa0/19    auto   off        0.0     n/a                 n/a   15.4
Fa0/20    auto   off        0.0     n/a                 n/a   15.4
Fa0/21    auto   off        0.0     n/a                 n/a   15.4
Fa0/22    auto   off        0.0     n/a                 n/a   15.4
Fa0/23    auto   off        0.0     n/a                 n/a   15.4
Fa0/24    auto   off        0.0     n/a                 n/a   15.4
SW1#

New Member

Re: all POE devices down WS-C3560-24PS

When you connect a phone what happens?

Is there a display to watch to see what message comes up?

New Member

Re: all POE devices down WS-C3560-24PS

Do you mind posting your entire config of the switch? According to your show power inline command, your switch does not have any power to supply to PoE. Here is how it should look, note the available power, used power, and remaining power:

sh power inline
Available:370.0(w)  Used:31.5(w)  Remaining:338.5(w)

Interface Admin  Oper       Power   Device              Class Max
                            (Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1     auto   off        0.0     n/a                 n/a   15.4
Fa0/2     auto   off        0.0     n/a                 n/a   15.4
Fa0/3     auto   off        0.0     n/a                 n/a   15.4
Fa0/4     auto   off        0.0     n/a                 n/a   15.4
Fa0/5     auto   off        0.0     n/a                 n/a   15.4
Fa0/6     auto   off        0.0     n/a                 n/a   15.4
Fa0/7     auto   off        0.0     n/a                 n/a   15.4
Fa0/8     auto   off        0.0     n/a                 n/a   15.4
Fa0/9     auto   off        0.0     n/a                 n/a   15.4
Fa0/10    auto   off        0.0     n/a                 n/a   15.4
Fa0/11    auto   off        0.0     n/a                 n/a   15.4
Fa0/12    auto   off        0.0     n/a                 n/a   15.4
Fa0/13    auto   off        0.0     n/a                 n/a   15.4
Fa0/14    auto   off        0.0     n/a                 n/a   15.4
Fa0/15    auto   on         6.3     IP Phone 7940       n/a   15.4
Fa0/16    auto   on         6.3     IP Phone 7940       n/a   15.4
Fa0/17    auto   on         6.3     IP Phone 7940       n/a   15.4
Fa0/18    auto   off        0.0     n/a                 n/a   15.4
Fa0/19    auto   off        0.0     n/a                 n/a   15.4

New Member

Re: all POE devices down WS-C3560-24PS

I agree the ports look like they are not getting power.

New Member

Re: all POE devices down WS-C3560-24PS

Hi Kredwin, try using the 'show post' command. The output should

look like this:

FL-3560-11#sh post
Stored system POST messages:

Switch 1
---------

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed

POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

see if the output of that line says 'passed' or 'failed'

Hall of Fame Super Gold

Re: all POE devices down WS-C3560-24PS

This is why ...

Available:0.0(w)  Used:0.0(w)  Remaining:0.0(w)

You have a few options to try:

1.  Reboot the switch; or

2.  Upgrade to, say,  12.2(53)SE2 and find out.

Can you also post the configuration of one of the interfaces.  I know that "power inline never" may not be in your configuration but I just want to verify.

Purple

Re: all POE devices down WS-C3560-24PS

  I would reload it and if it still stays the same open a tac case.

New Member

Re: all POE devices down WS-C3560-24PS

the POE didn't pass POST, so I had to replace the switches

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