STRUCTURE OF MANAGEMENT INFORMATION

Entities that can be managed using SNMP are called objects. The Structure of Management Information (SMI) provides a framework to manage these objects. Each object has properties, including the following:

  • Name

  • Syntax

  • Encoding

The object name is defined in a special way using object identifiers (OIDs). These are discussed later in the chapter. The syntax refers to the data type used to store the value of that object. If you find the following in the definition of a MIB, for instance, it means the object name is sysServices and it is of the data type integer. Its value can change from 0 to 127, as noted here:

sysServices OBJECT-TYPE 
          SYNTAX  INTEGER (0..127) 
          ACCESS  read-only 
          STATUS  mandatory 
          DESCRIPTION

The

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