WLC list config of disconnected AP

[Michal Bruncko]

hi guys

please can anybody advise how to list a configuration of AP which get disconnected from WLC point of view? Usually I am listing configuration of particular AP using the way: "Wireless" -> Access points -> All APs -> use filter/select for specific AP to get the configuration.

but this list shows only APs which are registered to WLC. I would like to see config of AP which is now disconnected, but was configured on this WLC before. how can I do that?

controllers: 5520, 5508,2504,WS-SVC-WISM2-K9

SW version:  8.5.135.0

thanks

[Flavio Miranda · Accepted solution]

Hi

 WLC does not show this. WLC only shows live Access Points. 

This requires Cisco Prime.

-If I helped you somehow, please, rate it as useful.-

[Michal Bruncko]

Hi Flavio

thanks for response, right, I can see them in PI. but anyway it is strange that I cant see config details for AP which definitely has its own record created in WLC directly from WLC.

[Flavio Miranda]

Capwap tunnel is what allows the WLC to pull information from Access Point, if the tunnel is down, there´s no way to get this information. As the WLC does not stores does config fot futher consult, you lost those information as soon as the tunnel goes down.

 That´s why Cisco Prime is so important, in my opinion. 

-If I helped you somehow, please, rate it as useful.-

[Michal Bruncko]

if the AP configuration is not stored locally, then your explanation completely makes sense. I thought it is stored locally (fixed IP, AP group, flexconnect group, ...). thank you Flavio for your time spent on this topic :)

[robdowson]

Sorry for the old reply but seems to be a common question for these 5520s and this is the first post that comes up and at least confirms that I'm not missing an obvious way to see this.

I found from another post that you can actually view some of the APs which are not currently connected by looking at the AP join statistics (Monitor -> Statistics -> AP Join - Filter for 'Join Status' "Not joined") which will show APs that are not currently connected - but if the stats get cleared or the WLC reboots then that is presumably lost.

Strange that you need Prime to see such basic info though.

What I don't understand though is this - does the WLC really not keep a list of which APs it has configured or seen in the past? Once an AP joins and you set it up and give it a name and assign it to an AP group etc - then surely that must be stored in the WLC somewhere - so you would think it could tell you about all the APs it knows about - both online and ones are currently offline - and then it can give them the name/group when they rejoin? Unless that config is stored on the APs rather than on the WLC? I wonder if for instance you reset an AP to factory defaults, would pick up it's original name/group when it re-joined?