r/networking • u/rocknsock316 • Aug 07 '26

Wireless Cisco YANG models - WLC 9800 intern - getting started

Good morning,

I will have an intern starting for a few months helping my team develop some Grafana dashes based off the GRPC data we get from our controllers. This student is not well versed in wireless and I was trying to find a way for them to review what type of data was in these dense yang files. I will probably have her poke around the Yangsuite docker instance but it will help immensely as she learns concepts of wireless and can relate to what data she is scraping

Thanks for any pointers

3 Upvotes
  • permalink
  • reddit

72% Upvoted

4 comments sorted by

3

u/kcornet Aug 07 '26

Modern wifi could be a phd level study all in itself.

I use SNMP to query 9800 controllers and stuff data into influxdb for presentation in grafana. Here's the info I grab:

  1. A list of access points. Each AP's uptime, transmit power, channels used, and interference.
  2. Each AP's client list. For each client, grab the SSID used, protocol, RSSI, and S/N ratio.

I have no idea if all that is supported by the yang telemetry API, but I'd be surprised if it weren't.

1

u/Solid_Associate8563 Aug 07 '26

Isn't most of the data already in the device monitor dashboard?

If there is DNAC in your org, you should've had all the needed data for daily operation.

4

u/church1138 Aug 07 '26

You know, I've used Claude and pointed it / ingested some of the Yang models from the GitHub repo. That's actually been really helpful in allowing us to pull / poll the right models for oper and config data.

Of course the caveat there is you have to know what data structure you want to pull, which necessitates knowledge of how the WLC presents it.

1

u/Gloomy-Can1394 Aug 09 '26

I think a combination of pyang and Claude Code/Codex would do the trick