Solved: AIR-AP1252AG-A-K9 error

raulzulueta · ‎08-30-2010

I have an AIR

-AP-1252AG-A-K9 AP connected to a WS-C3750-48-PS-S and I am getting an error:

%CDP_PD-2-POWER_LOW: - NON_CISCO-NO_CDP_RECEIVED

What do I need to do to clear this error. The STATUS LED blinks RED.

Leo Laohoo · ‎08-30-2010

Means one of two things:

1. Your switch is not providing the right amount of power to the AP. The 1250 requires a minimum of 15.4w to 19.4w of PoE.

2. Your APs running an old IOS which require no less than 19.4w of power.

Solution:

1. Remove one of the two modules would work.

2. Upgrade to the latest IOS version to enable the 1250 to operate at 15.4 with both radios operational.

Please do not forget to rate useful posts. Thanks.

View solution in original post

Leo Laohoo · ‎08-30-2010

Same reason as above.

1. You are running an old IOS that forces the AP to operate at 15.4w

2. Your switch is providing 15.4w PoE.

You can also get a PWR-INJ4.

View solution in original post

Leo Laohoo · ‎08-30-2010

I am running 12.4(10b)JA3. What IOS do you recommend I use?

Minimum requirement is 12.4(10b)JDA3.

So if the switch is providing 15.4w, that is not enough for this AP?

It's not. The 1250 requires a minimum of 19.5w of power using the old IOS. The new IOS as previously posted will allow users to use 15.4w and allow use of both radios AT A COST of lower MCS rates.

View solution in original post

Leo Laohoo · ‎08-30-2010

If the solution provided was successful, please don't forget to mark this topic as "Answered". Thanks.

View solution in original post

Leo Laohoo · ‎08-30-2010

Using a TFTP Server to Return to a Previous Release
http://www.cisco.com/en/US/docs/wireless/access_point/conversion/lwapp/upgrade/guide/lwapnote.html#wp160918

Please don't forget to rate our useful posts. Thanks.

View solution in original post

Leo Laohoo · ‎08-30-2010

Is there anyway I can recover this?

Yes, please upgrade your IOS to the level I've posted.

View solution in original post

Leo Laohoo · ‎08-31-2010

But how can I do that in the "rommon" state the AP lookslike it is in? I cannot BOOT flash: and I cannot tftp at all. Any suggestions at this point would be appreciated.

Have you gone through this link I've posted previously? You have copied the .TAR file into the AP, deleted the .BIN file and rebooted the AP. Since the AP can't read .TAR file, it went into ROMMON. The easiest way to fix the issue and get the right IOS into your AP is to follow the link I've posted previously (which I've re-posted again below).

Using a TFTP Server to Return to a Previous Release
http://www.cisco.com/en/US/docs/wireless/access_point/conversion/lwapp/upgrade/guide/lwapnote.html#wp160918

Please don't forget to rate our useful posts. Thanks.

View solution in original post

amabdull · ‎09-01-2010

Hi,

Under the interface on the switch that the AP is connected to, are you sure that CDP is enabled? make sure it is.

if CDP is working fine on the switch, try to issue those two commands on your AP

power inline negotiation injector override
power inline negotiation prestandard source

et me know if this works.

View solution in original post

Leo Laohoo · ‎09-02-2010

Can you please do a "sh version"?

What power source is the AP connected to?

View solution in original post

Leo Laohoo · ‎09-02-2010

Can you reboot the AP and post the show logs after about 5 minutes (takes time for the radios to come up) as well as "sh ip int brief"?

View solution in original post

Leo Laohoo · ‎08-30-2010

Means one of two things:

1. Your switch is not providing the right amount of power to the AP. The 1250 requires a minimum of 15.4w to 19.4w of PoE.

2. Your APs running an old IOS which require no less than 19.4w of power.

Solution:

1. Remove one of the two modules would work.

2. Upgrade to the latest IOS version to enable the 1250 to operate at 15.4 with both radios operational.

Please do not forget to rate useful posts. Thanks.

raulzulueta · ‎08-30-2010

I will upgrade to the latest IOS. I also saw this error:

%DOT11-4-DIVER_USED: Interface Dot11Radio1, Mcs rates 8-15 disabled due to only one transmit or recieve antenna enabled

Can you tell me what is needed to resolve this error.

Leo Laohoo · ‎08-30-2010

Same reason as above.

1. You are running an old IOS that forces the AP to operate at 15.4w

2. Your switch is providing 15.4w PoE.

You can also get a PWR-INJ4.

raulzulueta · ‎08-30-2010

I am running 12.4(10b)JA3. What IOS do you recommend I use? So if the switch is providing 15.4w, that is not enough for this AP?

Leo Laohoo · ‎08-30-2010

I am running 12.4(10b)JA3. What IOS do you recommend I use?

Minimum requirement is 12.4(10b)JDA3.

So if the switch is providing 15.4w, that is not enough for this AP?

It's not. The 1250 requires a minimum of 19.5w of power using the old IOS. The new IOS as previously posted will allow users to use 15.4w and allow use of both radios AT A COST of lower MCS rates.

Leo Laohoo · ‎08-30-2010

If the solution provided was successful, please don't forget to mark this topic as "Answered". Thanks.

raulzulueta · ‎08-30-2010

I may have totally reset the AP. This is the stage it is in right now.

ap: set
DEFAULT_ROUTER=10.0.0.1
ENABLE_BREAK=no
IP_ADDR=10.0.0.1
MANUAL_BOOT=no
NETMASK=255.255.255.224
TERMLINES=0

ap: dir

List of filesystems currently registered:

               flash[0]: (read-write)
              xmodem[1]: (read-only)
                null[2]: (read-write)
                tftp[5]: (read-only)

ap: set
DEFAULT_ROUTER=10.0.0.1
ENABLE_BREAK=no
IP_ADDR=10.0.0.1
MANUAL_BOOT=no
NETMASK=255.255.255.224
TERMLINES=0

ap: dir flash:
Directory of flash:/

2    -rwx 108                      env_vars
3    -rwx 1048                     private-multiple-fs
4    -rwx 5                        private-config
5    -rwx 6440960                  c1250-k9w7-tar.124-21a.JY.tar

25424384 bytes available (6444544 bytes used)

Please help me to recover this AP.

Thanks again,

Leo Laohoo · ‎08-30-2010

Using a TFTP Server to Return to a Previous Release
http://www.cisco.com/en/US/docs/wireless/access_point/conversion/lwapp/upgrade/guide/lwapnote.html#wp160918

Please don't forget to rate our useful posts. Thanks.

raulzulueta · ‎08-30-2010

My problem is I did not order an externL power supply since I intended to use my PoE switch. Is there anyway I can recover this?

Leo Laohoo · ‎08-30-2010

Is there anyway I can recover this?

Yes, please upgrade your IOS to the level I've posted.

raulzulueta · ‎08-31-2010

But how can I do that in the "rommon" state the AP lookslike it is in? I cannot BOOT flash: and I cannot tftp at all. Any suggestions at this point would be appreciated.

Thanks again.

Leo Laohoo · ‎08-31-2010

But how can I do that in the "rommon" state the AP lookslike it is in? I cannot BOOT flash: and I cannot tftp at all. Any suggestions at this point would be appreciated.

Have you gone through this link I've posted previously? You have copied the .TAR file into the AP, deleted the .BIN file and rebooted the AP. Since the AP can't read .TAR file, it went into ROMMON. The easiest way to fix the issue and get the right IOS into your AP is to follow the link I've posted previously (which I've re-posted again below).

Using a TFTP Server to Return to a Previous Release
http://www.cisco.com/en/US/docs/wireless/access_point/conversion/lwapp/upgrade/guide/lwapnote.html#wp160918

Please don't forget to rate our useful posts. Thanks.

raulzulueta · ‎08-31-2010

I have recoverd the AP using your recommendations and with an external power adapter. I have upgraded the IOS to the latest version c1250-k9w7-mx.124-21a.JY . I still get the original error:

%CDP_PD-2-POWER_LOW: - NON_CISCO-NO_CDP_RECEIVED (0000.0000.0000)

Any suggestions?

Thanks.

amabdull · ‎09-01-2010

Hi,

Under the interface on the switch that the AP is connected to, are you sure that CDP is enabled? make sure it is.

if CDP is working fine on the switch, try to issue those two commands on your AP

power inline negotiation injector override
power inline negotiation prestandard source

et me know if this works.