Dear friends,
I am facing a problem with one of our Catalyst 4507 and a line card refusing to power devices through PoE.
Regarding the technical data, this is the setup of the switch:
Switch# show module
Chassis Type : WS-C4507R
Power consumed by backplane : 40 Watts
Mod Ports Card Type Model Serial No.
---+-----+--------------------------------------+------------------+-----------
1 6 Sup V-10GE 10GE (X2), 1000BaseX (SFP) WS-X4516-10GE JAE1118FMYP
3 24 10/100/1000BaseT (RJ45) WS-X4424-GB-RJ45 JAB072805CF
4 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V JAE1134URO9
5 24 10/100/1000BaseT (RJ45) WS-X4424-GB-RJ45 JAB072805AW
6 48 10/100BaseTX (RJ45) WS-X4148-RJ JAE04261QNQ
7 18 1000BaseX (GBIC) WS-X4418-GB JAE063808EW
M MAC addresses Hw Fw Sw Status
--+--------------------------------+---+------------+----------------+---------
1 000d.29d4.b280 to 000d.29d4.b285 3.4 12.2(31r)SGA 15.0(2)SG10 Ok
3 000c.ce7e.7710 to 000c.ce7e.7727 1.5 Ok
4 001d.4554.2ee0 to 001d.4554.2f0f 3.3 Ok
5 000c.ce7e.7860 to 000c.ce7e.7877 1.5 Ok
6 0002.b94f.d2f0 to 0002.b94f.d31f 2.3 Ok
7 0008.e37a.ba1e to 0008.e37a.ba2f 1.1 Ok
Mod Redundancy role Operating mode Redundancy status
----+-------------------+-------------------+----------------------------------
1 Active Supervisor SSO Active
Switch# show power
Power Fan Inline
Supply Model No Type Status Sensor Status
------ ---------------- --------- ----------- ------- -------
PS1 PWR-C45-2800AC AC 2800W good good good
PS2 PWR-C45-2800AC AC 2800W good good good
Power supplies needed by system : 1
Power supplies currently available : 2
Power Summary Maximum
(in Watts) Used Available
---------------------- ---- ---------
System Power (12V) 561 1360
Inline Power (-50V) 17 1400
Backplane Power (3.3V) 40 40
---------------------- ---- ---------
Total 618 2800
The switch is running Catalyst 4500 L3 Switch Software (cat4500-ENTSERVICESK9-M), Version 15.0(2)SG10.
We are facing PoE issues on the module 4 (WS-X4548-GB-RJ45V). Even with a factory default configuration, the module does not power up any device connected to ports Gi4/1 - Gi4/12, and to ports Gi4/25 - Gi4/36. The remaining ports appear to be providing power correctly. Approximately every 15 minutes, the following console message appears:
%C4K_CHASSIS-5-POEHEALTHCHECKFAILED: Poe Health Check failed on slot 4 (count = 1)
As far as data communication is concerned, all ports appear to be communicating normally, so the issue is limited strictly to PoE.
The following (abbreviated) output is interesting:
Switch# show power inline
Available:1400(w) Used:17(w) Remaining:1383(w)
Interface Admin Oper Power(Watts) Device Class
From PS To Device
--------- ------ ---------- ---------- ---------- ------------------- -----
Gi4/1 auto on 17.3 15.4 Cisco PD n/a
Gi4/2 auto off 0.0 0.0 n/a n/a
Both ports shown are connected to devices that do not come up even though they are supposed to be powered through PoE. Gi4/1 connects to an Aironet AP (1230 series). This AP is not really powered up even though the output claims otherwise. Gi4/2 connects to a Cisco 7970 IP phone series. This phone is not powered up and not even detected as a PoE device in the output above.
Configuring static PoE settings on the affected ports does not help, and the fact that they fail in sets of 12 (1-12 are unpowered, 13-24 are powered, 25-36 are unpowered, 37-48 are powered) unfortunately suggests that this can be a hardware problem.
In any case, does anyone have any suggestion? Thank you very much in advance!
Best regards,
Peter
