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Cisco 2960 -24PC- 12.2(58)SE2 --PoE bug or not

Hi all,

On Cisco 2960 -24PC-L  switch IOS version---

Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(58)SE2, RELEASE SOFTWARE (fc1)

I checked few ports got this error on logs

May 16 11:06:35.715 : %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Fa0/10: Power Controller reports power Imax error detected

May 16 11:06:46.511 : %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Fa0/10: Power Controller reports power Imax error detected

May 16 11:08:18.710 : %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Fa0/10: Power Controller reports power Imax error detected

May 29 13:36:54.691 MDT: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Fa0/8: Power Controller reports power Imax error detected

May 29 13:37:32.565 MDT: %ILPOWER-5-IEEE_DISCONNECT: Interface Fa0/2: PD removed

May 29 13:37:32.683 MDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

May 29 13:37:33.689 MDT: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down

I check the avaliable power it was enough

    sh power  inline

Available:370.0(w)  Used:54.0(w)  Remaining:316.0(w)

Port is config as access and also in Voice vlan.

We verify that cable was good as this happens with 3 ports.

Verfied post test was good.

Did shut and no no shut on one of ports and it came back up.

FastEthernet0/10 is up, line protocol is up (connected)

  Hardware is Fast Ethernet, address is 5c50.15ae.d78a (bia 5c50.15ae.d78a)

  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, media type is 10/100BaseTX

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:48, output 00:00:48, output hang never

  Last clearing of "show interface" counters never

--More--           Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 2000 bits/sec, 2 packets/sec

     427960 packets input, 79550297 bytes, 0 no buffer

     Received 37840 broadcasts (37820 multicasts)

     1 runts, 0 giants, 0 throttles

     1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 37820 multicast, 0 pause input

     0 input packets with dribble condition detected

     9627001 packets output, 2421701292 bytes, 0 underruns

     0 output errors, 0 collisions, 2 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 pause output

Cisco phone is connected to this port.

Fa0/10    auto   on         10.5    IP Phone 7937       3     15.4

Need to confirm if this is due to some cisco bug or not?

My understanding is that 3 ports can not go bad same time and they came back after shut and no shut.

Also they did do went to errdisable state.

Need to confirm if it is some IOS  bug or not ??

Thanks

Mahesh

Everyone's tags (2)
3 REPLIES
Hall of Fame Super Gold

Cisco 2960 -24PC- 12.2(58)SE2 --PoE bug or not

Before you blame the IOS can you plug the 7937 DIRECTLY to the switch port?

If you are getting the same error message then change the patch cable three times.

If by the third time you are still getting an error message, test the cable using the TDR.

Most of the time I see error messages like this, it's due to faulty cable.

Community Member

Cisco 2960 -24PC- 12.2(58)SE2 --PoE bug or not

Hi leolaohoo,

Phone is directly connected to switch and other cable from phone goes to PC.

Thanks

MAhesh

Hall of Fame Super Gold

Cisco 2960 -24PC- 12.2(58)SE2 --PoE bug or not

Phone is directly connected to switch and other cable from phone goes to PC.

Ok.  Let's do this then ...

1.  TEMPORARILY plug the phone directly to either GigabitEthernet 1 or 2.

NOTE:  I know the phone ain't going to power up but this is not my intention.

2.  Enter the following command on the switch:

conf t

interface Gig0/<1 or 2>;

media rj

end

3.  In enable mode, enter the following command:  test cable tdr interface Gig 0/<1 or 2>;

4.  Wait for approximately 5 to 7 seconds;

5.  Command:  sh cable tdr interface Gig 0/<1 or 2>;

6.  Post the command.

7.  Undo the command in #2:

conf t

interface Gig0/<1 or 2>;

media auto

end

That's it.  I await to see the result of your tests.

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