ExtremeWireless support in LibreNMS

[James_A]

I recently had my support for ExtremeWireless controllers merged into LibreNMS. For those not familiar with LibreNMS, it provides network graphing and monitoring with a user-friendly setup and interface. Think Cacti but web 2.0 instead of stuck in the '90s. I've added support for AP count, client count, utilization, SNR, RSSI, noise floor, retransmits and frequency, with AP power coming soon. Here's some screenshots:

Configured and connected APs (I replaced some 3710s with 3825s last week):

Thanks to the LibreNMS team for merging it in, and the EWC controller team for providing so much information via SNMP.

[Thomas_Hucke]

Hi James. I tried to establish in LibreNMs an alert that would send me a email if channel utilization would cross a certain value. In the alert configuration I used a variable called access_points.radioutil but the alert is not working. Could you help me? My objective is to get informed by email when the channel utilization of an AP is too high, or the number of clients connected crossed a cerain limit or an AP is down. With best regards,

Thomas.

[James_A]

They're looking for feedback on the alerting system at the moment: https://github.com/librenms/librenms/issues/8353

[Joshua_Puusep]

sensor_alert = 1 makes it easy to filter out the device and SSID statistics by disabling alerting for them within a devices "wireless sensors" settings

[Joshua_Puusep]

The alert rule i'm using in conjunction is

:

[Joshua_Puusep]

If you go to Alerts>Alert Templates, you can create your own notification template and assign it to an alert. Here is a simple one i'm using for utilization:

Severity: %severity
Timestamp: %timestamp
{if %state == 0}Time elapsed: %elapsed{/if}
{if %faults}{foreach %faults}
Radio: %value.sensor_descr
Utilization: %value.sensor_current%
{/foreach}
{/if}