SNMP discovery is handled by sending an SNMP request packet to a device over the network. The request packet includes a specific OID (object identifier) that identifies the device’s system information. The device responds with a response packet that includes the requested system information along with a list of other OIDs that are available for monitoring.
The SNMP manager then uses the list of OIDs to discover and monitor various aspects of the device, such as network interfaces, CPU usage, and memory usage. This process can be automated using SNMP discovery tools, which automatically scan a network and identify all SNMP-enabled devices, along with the OIDs available for monitoring. This makes it easier for network administrators to monitor their network and identify issues that may affect performance and availability.
