Management Information Base (MIB)
SNMP does not define the management information transferred
The MIB standard defines the management information base
For example, an IP implementation has to keep count of the octets arrived at each network interface and the network management application can read these values
Figure 26.2 shows the classes of MIB variables
MIB-2 is an Internet standard on that facilitates vendor and device specific extensions to the MIB
The structure of the MIB is defined in the Structure of Management Information (SMI) standard
The names and types of MIB variable are defined in the ASN.1 language (Abstract Syntax Notation #1)