The TCP/IP Guide  9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)       9  TCP/IP Network Configuration and Management Protocols (BOOTP, DHCP, SNMP and RMON)            9  TCP/IP Network Management Framework and Protocols (SNMP and RMON)                 9  TCP/IP Structure of Management Information (SMI) and Management Information Bases (MIBs)

TCP/IP MIB Object Descriptors and Identifiers and the Object Name Hierarchy and Name Notation 1 2 3 4 TCP/IP Simple Network Management Protocol (SNMP) Protocol

MIB Module Format

The format for MIB modules is described in the Structure of Management Information standard, version 2 (SMIv2). The document specifies how modules are to be defined in a way very similar to how objects themselves are defined, by listing a set of characteristics that must be included in each module description. The module fields are:

• Module Name: The name of the module. Remember that modules are really objects, syntactically, so like regular objects they have a textual object descriptor (like tcpMIB) and an object identifier (in the case of tcpMIB, the number 50).
  
  
• Last Updated: The date and time that the module was last revised.
  
  
• Organization: The name of the organization that is managing the development of the module.
  
  
• Contact Information: The name, address, telephone number and e-mail address of the “point person” for this module.
  
  
• Description: A description of the module.
  
  
• Revision and Revision Description: One Revision entry is placed for each revision of the module to show its history. Each entry has a description associated with it.

After the definition of the module itself, the objects in the module are described. For an example, see RFC 2012, which defines the SNMPv2 TCP MIB we've been discussing in this example.

TCP/IP MIB Object Descriptors and Identifiers and the Object Name Hierarchy and Name Notation 1 2 3 4 TCP/IP Simple Network Management Protocol (SNMP) Protocol