Mib Tree - 3Com corebuilder 3500 Implementation Manual

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HAPTER EVICE ONITORING

MIB Tree

The MIB tree is a structure that groups MIB objects in a hierarchy and uses
an abstract syntax notation (ASN.1) to define manageable objects. Each
item on the tree is assigned a number (shown in parentheses after each
item), which creates the path to objects in the MIB. See Figure 99. This
path of numbers is called the object identifier (OID). Each object is
uniquely and unambiguously identified by the path of numeric values.
When the system software performs an SNMP Get operation, the
management application sends the OID to the agent, which in turn
checks to see if the OID is supported. If the OID is supported, the agent
returns information about the object.
For example, to retrieve an object from the RMON MIB, the software uses
this OID:
1.3.6.1.2.1.16
which indicates this path:
iso(1).indent-org(3).dod(6).internet(1).mgmt(2).mib(1).RMON(
16)