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11-5
Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 11 SNMP
SNMP Management Information Bases
Figure 11-5 Viewing trap destinations
11.4 SNMP Management Information Bases
A management information base (MIB) is a hierarchically-organized collection of information.
Network-management protocols, such as SNMP, gain access to MIBs. MIBs consist of managed objects
and are identified by object identifiers.
The ONS 15454 SNMP agent communicates with an SNMP management application using SNMP
messages. Table 11-1 describes these messages.
Table 11-1 SNMP Message Types
Operation Description
get-request Retrieves a value from a specific variable
get-next-request Retrieves the value following the named variable; this operation is often
used to retrieve variables from within a table. With this operation, an SNMP
manager does not need to know the exact variable name. The SNMP
manager searches sequentially to find the needed variable from within the
MIB.
get-response The reply to a get-request, get-next-request, get-bulk-request, or set-request
sent by an NMS