Overview of Basic SNMP Building Blocks
About SNMP Management
SNMPv2 and SMI
The SMI defines the rules for describing management information by using ASN.1.
RFC 1902 (http://www.ietf.org/rfc/rfc1902) describes the SNMPv2 SMI and enhances the SNMPv1
•Bit
•Network
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SMI Information Modules
The SNMPv2 SMI specifies information modules, which include a group of related definitions. Three types of SMI information modules exist:
•MIB
•Compliance
•Capability
SNMPv2 Protocol Operations
The Get, GetNext, and Set operations used in SNMPv1 are exactly the same as those used in SNMPv2. SNMPv2, however, adds and enhances protocol operations. The SNMPv2 trap operation, for example, serves the same function as the one used in SNMPv1. However, a different message format is used.
SNMPv2 also defines two new protocol operations:
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About SNMP Management
SNMP is a
When a system operates as both an NMS and an agent, another NMS can require the system to:
•Query managed devices and provide a summary of the information learned.
•Report locally stored management information.
Basic Dial NMS Implementation Guide