Ports supplying PoE but not linking

[amguirado73]

We have strange behavior on ports 10, 11 and 12 in a FS-124F-POE switch. In ports 1-9 there are PoE devices (phones) and are working perfectly. However, when we connect a new PoE phone to port 10 (or 11 or 12), the new phone receives PoE but the port does not link and stays down physically. We have tried to connect directly with a laptop to these ports (10,11 and 12) but they do not link. Just in case there is a problem associated with PoE, we have disabled ports 1-4 but still ports 10,11 and 12 are not working. We have version 7.0.5 in switches and 7.2.1 in controller (Fortigate 200F).

Any ideas?. Bug? Hardware problem?.

Thanks in advanced.

E3P3S2 # get switch poe (port 11 is sending energy!!!)
inline poe inline

E3P3S2 # get switch poe inline
Unit Power Budget: 185.00W
Unit Guard Band: 19.00W
Unit Power Consumption: 19.00W
Unit Temperature: 54.00 Centigrade
Unit Poe Power Mode : Priority Based.

Interface Status State Max-Power(W) Power-consumption(W) Priority Class Error
------------------------------------------------------------------------------------------------------------
port1 Enabled Delivering Power 16.40 1.50 Low 1
port2 Enabled Delivering Power 16.40 1.40 Low 1
port3 Enabled Delivering Power 16.40 1.70 Low 1
port4 Enabled Delivering Power 16.40 3.20 Low 2
port5 Enabled Delivering Power 16.40 3.70 Low 3
port6 Enabled Searching 0.00 0.00 Low 0
port7 Enabled Delivering Power 16.40 1.50 Low 1
port8 Enabled Delivering Power 16.40 1.70 Low 1
port9 Enabled Delivering Power 16.40 1.40 Low 1
port10 Enabled Searching 0.00 0.00 Low 0
port11 Enabled Delivering Power 16.40 2.60 Low 2
port12 Enabled Searching 0.00 0.00 Low 0

E3P3S2 # diagnose switch physical-ports summary (port11 is down!!!)

Portname Status Tpid Vlan Duplex Speed Flags Discard
__________ ______ ____ ____ ______ _____ ____________ _________

port1 up 8100 514 full 1G QS, , none
port2 up 8100 514 full 1G QS, , none
port3 up 8100 514 full 1G QS, , none
port4 up 8100 514 full 1G QS, , none
port5 up 8100 514 full 1G QS, , none
port6 up 8100 514 full 1G QS, , none
port7 up 8100 514 full 1G QS, , none
port8 up 8100 514 full 1G QS, , none
port9 up 8100 514 full 1G QS, , none
port10 down 8100 514 half - QS, , none
port11 down 8100 514 half - QS, , none
port12 down 8100 514 half - QS, , none
port13 down 8100 514 half - QS, , none
port14 down 8100 514 half - QS, , none
port15 down 8100 514 half - QS, , none
port16 down 8100 514 half - QS, , none
port17 up 8100 514 full 1G QS, , none
port18 down 8100 514 half - QS, , none
port19 up 8100 514 full 100M QS, , none
port20 up 8100 514 full 1G QS, , none
port21 up 8100 514 full 100M QS, , none
port22 up 8100 514 full 100M QS, , none
port23 down 8100 1 half - QS, , none
port24 up 8100 4094 full 1G QS,TL, none
port25 down 8100 1 full 10G QS, , none
port26 down 8100 1 full 10G QS, , none
port27 down 8100 1 full 10G QS, , none
port28 down 8100 1 full 10G QS, , none
internal up 8100 4094 full 1G , , none

[manasac]

Hi @amguirado73 

>Connect a test client to port 10 

After connecting the client on port 10 , execute below command and share the output here to check the STP status, log display and if there is any crash reported

#diag debug report 

[amguirado73]

Hi,

this is the report that I have just generated.

http://80.73.144.91/report.txt

Thanks
Regards

[amguirado73]

Indicate that I got confused when opening the query. The ports that do not work are 11 and 12. Right now the test device is connected to port 11 and report has been generated. The switch has been rebooted but the issue still exists.

Thanks again for your help.

[gfleming]

Just making sure you have ruled out cabling as the issue? Does port 11 and 12 not work even if using a known-good cable (i.e. cable that is used to connect devices to the other working ports)?

[amguirado73]

Hello,

I have just repeated a new test:

new cable and laptop -> Port 11 -> No link
new cable and laptop -> Port 12 -> No link

new cable and laptop -> Port 13 -> Link Ok

There is no link in port 11 and 12 but when you connect a PoE device, it receives energy and link is always down.

I think that could be a bug associated with PoE ports. Ports 1-10 are used by Cisco phones.

Thanks again.

[Henrik_Meyer]

Same issue here with a FS-108F-FPOE

Did you resolved your issue?
The port have worked for several days, and just suddently stopped working. POE is delivered on the port.