LAP1131 with 2 WLCs interface down and up repeatedly

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Feb 2nd, 2009
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I have 14 LAP1131 running on 2 WLCs version 5.1.151.0. The problem is the trap logs on WLCs show that the radio interface is going down and then going up suddenly as below.

<br />

<br />Log System Time Trap

<br />--- ------------------------ -------------------------------------------------

<br />4 Tue Feb 3 13:18:37 2009 AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:00:21:a0:04:aa:00 Cause=Admin Configured

<br />5 Tue Feb 3 13:18:37 2009 AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:21:a0:04:aa:00 Cause=Admin Conf igured

<br />

<br />I have found some solution that suggest to change PoE setting but it didn't work.

<br />

<br />How can I solve it?

<br />Thank you.

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Leo Laohoo Tue, 02/03/2009 - 13:16
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Is this errors applicable to ALL 14 AP's or just to one specific AP?

Thanasak Wongng... Tue, 02/03/2009 - 17:48
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All I can see so far is about 11 APs but the clients did not disconnect from wireless LAN when the problem occured. The trap logs just show on WCS.

Leo Laohoo Thu, 02/12/2009 - 15:03
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If you console into one of the AP's having a problem, what are in the logs?

craig.beck Tue, 02/24/2009 - 15:38
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Are all the APs being powered using PoE from a switch?


If so, is too much power being drawn from the switch? You can check by using SHOW POWER INLINE on the PoE switch.

Leo Laohoo Fri, 02/27/2009 - 00:45
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Can you run the following commands from the WLC:


sh ap eventlogs

Thanasak Wongng... Fri, 02/27/2009 - 02:05
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See below log for command sh ap eventlogs .


*Feb 27 04:48:32.809: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

*Feb 27 04:48:32.810: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 04:48:32.842: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 05:21:24.625: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 05:21:30.283: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 05:30:24.742: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 05:30:25.050: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 05:30:25.082: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 05:30:30.400: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 05:30:30.459: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 05:30:30.492: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 06:00:21.282: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 06:00:21.590: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

*Feb 27 06:00:21.592: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 06:00:21.624: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 06:00:26.941: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 06:00:27.000: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 06:00:27.033: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 06:42:17.934: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 06:42:23.592: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 07:00:17.840: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 07:00:18.164: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

*Feb 27 07:00:18.165: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

--More-- or (q)uit

*Feb 27 07:00:18.198: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 07:00:23.498: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 07:00:24.183: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 07:00:24.185: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 07:12:10.118: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 07:12:10.442: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 07:12:10.475: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 07:12:15.777: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 07:12:15.835: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 07:12:15.868: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 07:51:06.798: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 07:51:07.107: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

*Feb 27 07:51:07.108: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 07:51:07.140: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 07:51:12.456: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 07:51:12.515: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

*Feb 27 07:51:12.516: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 07:51:12.548: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 08:00:04.456: %LWAPP-5-RLDP: RLDP started on slot 0.

*Feb 27 08:00:04.765: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

*Feb 27 08:00:04.798: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

*Feb 27 08:00:10.119: %LWAPP-5-RLDP: RLDP stopped on slot 0.

*Feb 27 08:00:10.177: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

gilbertojr Sun, 03/15/2009 - 17:39
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Hi Guys,


Did anyone get the solution to this problem?


I'm with the same problem. I've changed the power from power injector to switch POE and check the comsuption on switch and the problem persist.


9 Sat Mar 14 02:17:06 2009 AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:00:1d:a1:75:92:50 Cause=Admin Configured

10 Sat Mar 14 02:17:06 2009 AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:1d:a1:75:92:50 Cause=Admin Configured


I have one WLC working fine on HQ site and I have this problem with remote APs working with H-REAP.



Leo Laohoo Sun, 03/15/2009 - 18:09
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Hi Gilbert,

Do a "sh ap eventlog ". If you see lines like "%LWAPP-5-RLDP: RLDP started on slot 0", then I believe it's a bug in the firmware.


Go to the WLC, click AP Summary and click on the AP, go to the Advanced tab. If your AP is on PoE, choose Power Injector State and click Apply otherwise, choose Pre-Standard State and click Apply.


I have 3 1250's on a power injector and keeps getting this issue. After I chose "Pre-Standard State", everything started stabilizing.


See if this will work.

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