Mastering Proxmox - Third Edition

Object Identifiers

OIDs are objects that SNMP query to gather information from a device. An object can be a network interface status, disk storage usage, device name, and so on. These object identifiers are extremely structured in a hierarchical tree manner. Each OID is specifically numbered. For example, the OID of the object that gathers the device name is 1.3.6.1.2.1.1.5.0. OIDs always have numerical values. OIDs can be compared with IP addresses, where numeric values are used to identify a device in a network.

Each dot in an OID represents segmentation of the network element. We can think of an OID like an address of a location. Let's take the following address:

Wasim Ahmed 111 Server Street, 4th Floor Calgary, AB 111-222 Canada

If we ...