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Monitoring Cisco WLC, AP's, SSIDs



I'm working thru our WiFi setup with an instance of PRTG as our monitoring solution.

I'm trying to find a way to monitor bandwidth usage. Both clients connected to the AP's and the traffic per SSID.

Current setup: - 2 - 2504s and roughly 20 - 3700i APs, and getting quotes on upgrade to a 3504s and planning for an integration to 3800 APs - Roughly 350 clients.

My ideal solution, for now, would be to use PRTG to monitor -> make a graph available to our IT staff so we all can quickly look and see if when we start to get "WiFi is SLOW" tickets:

So really monitor and graph: - Total Number of clients connected - Number of clients connected to each AP - Number of clients connected to each SSID, each SSID per AP would be great too - Bandwidth usage at both the AP and SSID levels

I downloaded and installed a solution, link below, from the PRTG forums last week. At quick glance though it looks a little clunky and not sure if it's going to give me everything that I need. When I say quick glance I spent a few hours getting it up and running. Then another few hours making and installing oilib's.


Anybody have advice on this. I'll need to do this for 3 additional offices too.

bandwidth cisco cisco-ap cisco-wlc

Created on Feb 24, 2019 8:05:22 PM

1 Reply



Hi aaronjk,

To display different graphs/channels in one view, we recommend to use a Map. With the Maps feature you can create web pages with up-to-the-minute monitoring status information in a customizable layout. Furthermore, as the other Knowledge Base article describes, the best way to monitor the bandwidth is to use the SNMP Traffic Sensor. For more values like " Number of clients connected" I recommend to use a SNMP Custom Sensor / SNMP Custom Advance Sensor / SNMP Library Sensor. With these Sensors you are able to monitor manufacturer specific OIDs. Therefore, if the manufacturer provides an appropriate OID, PRTG can monitor it.

To import a custom MIB file, please use our MIB Importer and save the OIDLib in the directory: "<Your PRTG installation path>\snmplibs". Afterwards, you should use the SNMP Library Sensor to use the OIDLib.

For more detailed information about the mentioned Sensors, please follow these links: - https://www.paessler.com/manuals/prtg/snmp_traffic_sensor - https://www.paessler.com/manuals/prtg/snmp_library_sensor - https://www.paessler.com/manuals/prtg/snmp_custom_sensor - https://www.paessler.com/manuals/prtg/snmp_custom_advanced_sensor

Best Regards, Moritz Paessler Support Team

Created on Feb 25, 2019 12:29:46 PM by  Moritz Heller [Paessler Support]

Last change on Jul 13, 2021 12:16:57 PM by  Maike Guba [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.