OID

Object Identifier

A unique identifier that is assigned to various objects or entities within a managed network environment. OID is commonly used in network management protocols like SNMP.

An OID is a sequence of numbers separated by dots, following a hierarchical structure. The hierarchy is organized in a tree-like structure, similar to a file system, where each number in the OID represents a specific node or branch in the tree. The root of the tree is typically assigned to a standards organization, such as the International Organization for Standardization (ISO).

OIDs uniquely identify managed objects in a network, such as network devices, interfaces, system parameters, and performance statistics. Administrators can retrieve information about these objects using SNMP or other network management protocols by querying their corresponding OIDs.

For example, an OID 1.3.6.1.2.1.1.5 represents the sysName object in the SNMP Management Information Base (MIB). By querying this OID, one can obtain the system name of a network device.

OIDs play a crucial role in network monitoring, troubleshooting, and management systems by providing a standardized and globally unique way to identify and access network resources.

• Abbreviation: OID