https://www.ionos.co.uk/digitalguide/server/know-how/snmp-tutorial/
snmpwalk and snmpget: basics and tutorial - IONOS UK
snmpwalk and snmpget serve to query data sets via the Simple Network Management Protocol (SNMP). How do the two command lines work?
https://www.php.net/manual/tr/function.snmpwalk.php
PHP: snmpwalk - Manual
Fetch all the SNMP objects from an agent