Switch Port not Coming UP/ IP Phone keeps rebooting

[Siva chinap]

Hi All,

We are facing issue in switch port gig 1/0/35, We connected IP Phone on the port, The phone keeps rebooting. I tried giving static power in the interface, but still keeping reeboot.I performed some trouble shooting steps:

1)

show power inline

Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 370.0  165.9   204.1
2 370.0  52.8    317.2
3 370.0  118.3  251.7

2)

#show power inline gig1/0/35
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/35 auto on 15.4 Cisco PD n/a 30.0

Interface AdminPowerMax AdminConsumption
(Watts) (Watts)
---------- --------------- --------------------

Gi1/0/35 30.0 30.0

Error messages:

-----------------------------

Jun 20 03:54:54.948: %ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/35: PD removed
Jun 20 03:55:03.448: %ILPOWER-7-DETECT: Interface Gi1/0/35: Power Device detected: Cisco PD
Jun 20 03:55:04.032: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/35: Power granted
Jun 20 03:55:04.147: %ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/35: PD removed

Version

BOOT path-list : flash:/c2960x-universalk9-mz.150-2a.EX5/c2960x-universalk9-mz.150-2a.EX5.bin

Please assist me how to troubleshoot the issue.

[Mark Malone · Accepted solution]

Hi
that's not a stable image and its 4 years old , i would upgrade the switch, if that doesn't fix it upgrade the firmware on the phone
I presume you have tried different ports on the switch too yes ? in case the POE is faulty on that port , it does go now and again

This is a current recommended image
c2960x-universalk9-mz.152-4.E8.bin

[Siva chinap]

Thanks Mark,

It's worked out after upgrading the IOS.

[Mark Malone]

great :)