Internet Mib Hierarchy - Cisco SRST - 881 EN Security Router Wireless Manual

Internet MIB Hierarchy

As shown in
information about device parameters and network data. The agent can send traps, or notifications of
events of interest, to the manager. The Cisco trap file, mib.traps, which documents the format of the
Cisco traps, is available on the Cisco host ftp.cisco.com.
Figure 1-3
The SNMP manager uses information in the MIB to perform the operations described in
Table 1-5
Operation
get-request
get-next-request
get-response
get-bulk-request
set-request
trap
1. With this operation, an SNMP manager does not need to know the exact variable
name. A
Internet MIB Hierarchy
The MIB structure is logically represented by a tree hierarchy (see
branches and the branches that fall below each category have short text strings and integers to identify
them. Text strings describe object names, and integers allow computer software to create compact,
encoded representations of the names. For example, the Cisco MIB variable authAddr is an object name
and is denoted by number 5, which is listed at the end of its object identifier number 1.3.6.1.4.1.9.2.1.5.
The object identifier in the Internet MIB hierarchy is the sequence of numeric labels on the nodes along
a path from the root to the object. The Internet standard MIB is represented by the object identifier
1.3.6.1.2.1. It also can be expressed as iso.org.dod.internet.mgmt.mib. (See
Cisco SRST SNMP MIB Release 3.4 Guide
1-30
Figure 1-3, the SNMP agent gathers data from the MIB, which is the repository for
Simple Network Management Protocol Network
SNMP Manager Operations
sequential search is performed to find the needed variable from within the MIB.
Chapter 1 Cisco SRST SNMP MIB Support
Description
Retrieve a value from a specific variable.
Retrieve the value following the named variable. Often
used to retrieve variables from within a table.
The reply to a get-request, get-next-request,
get-bulk-request, or set-request sent by an NMS.
Similar to a get-next-request, but fill the
get-response with up to max-repetition number of
get-next interactions.
Store a value in a specific variable.
An unsolicited message sent by an SNMP agent to an
SNMP manager indicating that some event has
occurred.
Figure 1-4). The structure uses
Figure
Table 1-5.
1
1-4.)
OL-7959-01