Additional Update: Extreme is responding with an value of „-9999“ if the transceiver is not present anymore.

iso.3.6.1.2.1.99.1.1.1.4.192 = INTEGER: -9999

Mit freundlichem Gruß

Stadtwerke Norderstedt

Denis Klimek

Carrier Manager & Professional Network Engineer

IP-Systemtechnik

Tel: +49 (0) 40 / 521 04 – 1049

dklimek@stadtwerke-norderstedt.de

www.stadtwerke-norderstedt.de

Von: observium [mailto:observium-bounces@observium.org] Im Auftrag von Klimek, Denis via observium
Gesendet: Mittwoch, 16. Oktober 2019 11:21
An: 'Observium'
Cc: Klimek, Denis
Betreff: [Observium] False Positive Alert if sensor_value is "NULL" / "FALSE"

Hey all,

is there any way to check with an alert condition if the return value for i.e. is “NULL” and/or “FALSE”?

I have the case that we removed SFP+ transceivers from Extreme devices and the device is now not replying with any value for this OID check.

The SQL database contains “0.00000” for the affected sensor.

My current alert looks like:

https://pastebin.com/f17b9gfW

Example Alert (Web View):