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C2960x stack -poe issue on stack member

Hello all;

I have an issue with PoE on 2960LPDL 48p switch stacked with 2960xPDL switch.
Both switches have the same IOS version and i can mage them. 

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 30 WS-C2960X-24PD-L 15.2(6)E2 C2960X-UNIVERSALK9-M
2 54 WS-C2960X-48LPD-L 15.2(6)E2 C2960X-UNIVERSALK9-M

 

Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 00da.5524.cf00 1 4 Ready
2 Member 247e.1294.0d80 1 4 Ready

 

PoE device connected to the 24 port switch works OK, but when i connect some poe device to the second switch in stack switch port does not respond at all. I do not see anything in switch log, port is down. The power inline shows that the port is configured as "auto" but power is off.


Gi2/0/1 auto off 0.0 n/a n/a 30.0
Gi2/0/2 auto off 0.0 n/a n/a 30.0
Gi2/0/3 auto off 0.0 n/a n/a 30.0
Gi2/0/4 auto off 0.0 n/a n/a 30.0
Gi2/0/5 auto off 0.0 n/a n/a 30.0
Gi2/0/6 auto off 0.0 n/a n/a 30.0

ports are not administratively down, there in no err disabled ports. But PoE works only on the first switch in the stack

 

Could anyone help with such a issue?

7 REPLIES
Hall of Fame Guru

Re: C2960x stack -poe issue on stack member

Can you try upgrading the IOS to something more recent?

Re: C2960x stack -poe issue on stack member

I have done the upgrade yesterday. The 15.2.6E2 is the latest production software version.

Hall of Fame Guru

Re: C2960x stack -poe issue on stack member

Cool.
Please post the complete output to the command "sh post" and "sh power inline".

Re: C2960x stack -poe issue on stack member

SW12#sh post
Stored system POST messages:

Switch 1
---------

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed

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

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

POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : MAC Loopback Passed
POST: EMAC Loopback Tests : PHY Loopback Passed
POST: EMAC Loopback Tests : End, Status Passed

Switch 2
---------

POST: MA BIST : Begin
POST: MA BIST : End, Status Passed

POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed

POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed

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

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

POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : MAC Loopback Passed
POST: EMAC Loopback Tests : PHY Loopback Passed
POST: EMAC Loopback Tests : End, Status Passed

 

Power inline - i have manually disabled ports from 25 to 48 - just for testing purpose!

The poe on the first switch works without any issues - the PoE (802.3af) devices are also connected to ports GI2/0/1-15

2#sh power inline

Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 370.0 57.4 312.6
2 370.0 0.0 370.0
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/0/1 auto on 7.0 Ieee PD 2 30.0
Gi1/0/2 auto on 15.4 AP-7502-67030-EU 4 30.0
Gi1/0/3 auto on 7.0 Ieee PD 2 30.0
Gi1/0/4 auto on 7.0 Ieee PD 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 off 0.0 n/a n/a 30.0
Gi1/0/8 auto off 0.0 n/a n/a 30.0
Gi1/0/9 auto off 0.0 n/a n/a 30.0
Gi1/0/10 auto off 0.0 n/a n/a 30.0
Gi1/0/11 auto off 0.0 n/a n/a 30.0
Gi1/0/12 auto on 7.0 Ieee PD 2 30.0
Gi1/0/13 auto on 7.0 Ieee PD 2 30.0
Gi1/0/14 auto off 0.0 n/a n/a 30.0
Gi1/0/15 auto on 7.0 Ieee PD 2 30.0
Gi1/0/16 auto off 0.0 n/a n/a 30.0
Gi1/0/17 auto off 0.0 n/a n/a 30.0
Gi1/0/18 auto off 0.0 n/a n/a 30.0
Gi1/0/19 auto off 0.0 n/a n/a 30.0
Gi1/0/20 auto off 0.0 n/a n/a 30.0
Gi1/0/21 auto off 0.0 n/a n/a 30.0
Gi1/0/22 auto off 0.0 n/a n/a 30.0
Gi1/0/23 auto off 0.0 n/a n/a 30.0
Gi1/0/24 auto off 0.0 n/a n/a 30.0
Gi2/0/1 auto off 0.0 n/a n/a 30.0
Gi2/0/2 auto off 0.0 n/a n/a 30.0
Gi2/0/3 auto off 0.0 n/a n/a 30.0
Gi2/0/4 auto off 0.0 n/a n/a 30.0
Gi2/0/5 auto off 0.0 n/a n/a 30.0
Gi2/0/6 auto off 0.0 n/a n/a 30.0
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi2/0/7 auto off 0.0 n/a n/a 30.0
Gi2/0/8 auto off 0.0 n/a n/a 30.0
Gi2/0/9 auto off 0.0 n/a n/a 30.0
Gi2/0/10 auto off 0.0 n/a n/a 30.0
Gi2/0/11 auto off 0.0 n/a n/a 30.0
Gi2/0/12 auto off 0.0 n/a n/a 30.0
Gi2/0/13 auto off 0.0 n/a n/a 30.0
Gi2/0/14 auto off 0.0 n/a n/a 30.0
Gi2/0/15 auto off 0.0 n/a n/a 30.0
Gi2/0/16 auto off 0.0 n/a n/a 30.0
Gi2/0/17 auto off 0.0 n/a n/a 30.0
Gi2/0/18 auto off 0.0 n/a n/a 30.0
Gi2/0/19 auto off 0.0 n/a n/a 30.0
Gi2/0/20 auto off 0.0 n/a n/a 30.0
Gi2/0/21 auto off 0.0 n/a n/a 30.0
Gi2/0/22 auto off 0.0 n/a n/a 30.0
Gi2/0/23 auto off 0.0 n/a n/a 30.0
Gi2/0/24 auto off 0.0 n/a n/a 30.0
Gi2/0/25 off off 0.0 n/a n/a 30.0
Gi2/0/26 off off 0.0 n/a n/a 30.0
Gi2/0/27 off off 0.0 n/a n/a 30.0
Gi2/0/28 off off 0.0 n/a n/a 30.0
Gi2/0/29 off off 0.0 n/a n/a 30.0
Gi2/0/30 off off 0.0 n/a n/a 30.0
Gi2/0/31 off off 0.0 n/a n/a 30.0
Gi2/0/32 off off 0.0 n/a n/a 30.0
Gi2/0/33 off off 0.0 n/a n/a 30.0
Gi2/0/34 off off 0.0 n/a n/a 30.0
Gi2/0/35 off off 0.0 n/a n/a 30.0
Gi2/0/36 off off 0.0 n/a n/a 30.0
Gi2/0/37 off off 0.0 n/a n/a 30.0
Gi2/0/38 off off 0.0 n/a n/a 30.0
Gi2/0/39 off off 0.0 n/a n/a 30.0
Gi2/0/40 off off 0.0 n/a n/a 30.0
Gi2/0/41 off off 0.0 n/a n/a 30.0
Gi2/0/42 off off 0.0 n/a n/a 30.0
Gi2/0/43 off off 0.0 n/a n/a 30.0
Gi2/0/44 off off 0.0 n/a n/a 30.0
Gi2/0/45 off off 0.0 n/a n/a 30.0
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi2/0/46 off off 0.0 n/a n/a 30.0
Gi2/0/47 off off 0.0 n/a n/a 30.0
Gi2/0/48 off off 0.0 n/a n/a 30.0

 

Highlighted
Hall of Fame Guru

Re: C2960x stack -poe issue on stack member


@krzysztofsyguda wrote:
2 370.0 0.0 370.0 

This has got to be a bug!

Re: C2960x stack -poe issue on stack member

it seems that this is a hardware error or controller bug:
when i have connected console to the faulty switch i could see the messages like this (on the ports where i tried to connect poe device):

c 6 11:46:19.660: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi2/0/13: Power given, but Power Cont roller does not report Power Good (PT_SK2_SW12-2)

Hall of Fame Guru

Re: C2960x stack -poe issue on stack member

Raise a TAC Case.
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