Cisco Catalys 9800 WLAN Controller AP counting

Hi there,

as the 9800 series seems to support the IRESPACE-WIRELESS-MIB and CISCO-LWAPP-SYS-MIB, it might work to use the Cisco WLC device template. Please try to create the sensors as explained here.

Kind regards,
Matthias Kupfer - Team Tech Support

Hello Matthias, thanks for the info. These articel i have also found and tested... but no effect.

It seems the 9800 series do not use exact the same MIB as the older models. Do you know an other way?

Best regards

Christof

Hello Matthias, thanks for the info. I tested these setup but still no effect. I can only see on a SNMP Walk with the OID 1.3.6.1.4.1.14179.2.2.2.1.6 the status of each AP separate. But i didn`t see the count of all AP´s

Hi Christof,

In this case, you will have to examine the supported MIBs of the device, if there is a OID that gives you the count of all Access Points. If in doubt, please ask Cisco Support, as they should be able to provide you this OID, if it exists.

Kind regards,
Matthias Kupfer - Team Tech Support

Hello Matthias, Any change the WLC template can be updated to include support for the new C9800 controller series? Would make our life a whole lot easier.

Hi there,

the problem is that the WLC 9800 does not support some required OIDs, as explained in the following cisco bug info: https://quickview.cloudapps.cisco.com/quickview/bug/CSCvv44330

Unfortunately, there is not much we can do here, if the device does not provide us the necessary information.

Kind regards,
Matthias Kupfer - Team Tech Support

Hello all,

i have now build a Customsensor based on Powershell for this.

I use the SNMP-OID .1.3.6.1.4.1.14179.2.2.1.1.6 --> a list of all activ WLAN-AP on the controller.

Count them and that´s it.

It is not exact that what i need but i see the count of all activ AP`s.

The alert is realy simple --> 1 AP more or less --> alert ;-)

------------------------------

Custom Sensor Count WLAN-AP

Ver : 1.0

Description:

Count Numbr of active WLAN-AP on a Cisco 9800 Controller

important Sensorsettings in the parameterfield:

%host %snmpcommunity (check the correct order!!)

--> %host -- IP-address of your WLC

--> %snmpcommunitiy -- Read Only SNMP Community

Scanning Interval 1h

addional Powershell Modules to load or install:

--> SNMP

--> form GermanPowerShell https://germanpowershell.com

PRTG Funktionen Version 1.2b (script)

------- Script -------

Import-Module "....\PRTG Network Monitor\Custom Sensors\EXEXML\GPS_PRTGFunktionen.ps1"

Import-Module SNMP

-DEFINITION VARIABLE

$HostId = [string]$args[0] ## Read value 1 from the parameterfield

$CommId = [string]$args[1] ## Read value 2 from the parameterfield

$ApOid1 = '.1.3.6.1.4.1.14179.2.2.1.1.6' # OID BSN-APEntry

$ApAll = @() # AP-List set to 0

- Request the List of all WLAN-AP on Controller

$ApAll = Invoke-SnmpWalk -IP $HostId -Community $CommId -OIDStart $ApOid1

- Count Number of WLAN-AP

$APCount = $ApAll.count

$outputvar += Write-PRTGChannel -Titel "AP Count" -Value $APCount

Write-PRTGOut -OutputVariable $outputvar

Matthias: This bug has been fixed as of firmware 17.5.1 (April 2021). Can we have the WLC template updated now?

Hello ashearer,

If the bug is fixed and if your device now supports all required OIDs, the template should be working as it it. If it's not working, feel free to open a support ticket (email at [email protected]) for this, so we can have a closer look.