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USING OPENVIEW NETWORK NODE MANAGER LBI-39169
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13. USING OPENVIEW NETWORK NODE MANAGER
This section briefly describes some of the features available through OpenView Network Node Manager. We suggest the
you become familiar with the
HP
OpenView Network Node Manager User’s Guide.
This guide contains detailed
instructions for performing the task listed. The Network Manager application leverages the OpenView Network Node
Manager to the fullest extent to achieve maximum similarity between our application and the customer’s other OpenView
Network Node Manager applications. Refer to the OpenView Network Node Manager documentation for a complete listing
of features.
13.1 LOADING/UNLOADING MIBS
OpenView provides the mechanism to load/unload MIBs via the Options->Load/Unload MIBs main menu selection. By
default, the EDACS MIBs are automatically loaded into OpenView.
13.2 VIEWING/GRAPHING PERFORMANCE PARAMETERS
MIBs must be loaded to perform these operations.
Several menu selections are provided to graph the EDACS MIB items thought to be of most common interest via the
EDACS -> Performance menu bar. However, numerous additional MIB variables are available. See the OpenView NNM
User’s Guide sections titled Viewing MIB Values and Setting MIB Values for procedures on using the MIB Browser to read
and write MIB values. The MIB Browser provides the capability to graph individual MIB objects.
13.3 ADDING CUSTOM MENU ITEMS
Custom menus are realized using OpenView Network Node Manager’s MIB Application Builder. The MIB Application
Builder enables the easy development (without programming) of MIB applications for Internet-standard and enterprise-
specific (i.e., specific to a given vendor) MIB objects, and integration of the applications into the HP OpenView Network
Node Manager Windows menu bar. The custom menu item created may involve submenu items; therefore, all the user’s
custom-built additions may exist under one main menu bar item.
For custom selection, the MIBs Application Builder provides a list of the available performance values for the selected
object(s) available for display via a menu item. Each performance value in the list contains the actual SNMP MIB variable
name, its object ID, and a short description. The user may select one or more values from this list to monitor. Items for a
custom selection must be from the same MIB, and all instances of the object are selected.
This feature is useful for MIB variables of interest on a periodic basis. Custom menu items may be built to view the MIB
values. OpenView Network Node Manager has a MIB Application Builder to make this task relatively easy. See the
OpenView NNM User’s Guide section titled Building MIB Applications.
The MIB Application Builder allows data to be displayed in form, table, or graph format, but does not allow the
modification of MIB data. The MIB Browser is used to modify MIB data.
13.4 COLLECTING AND GRAPHING PERFORMANCE DATA
Data may be collected at regular intervals and saved to the
/usr/OV/database/snmpCollect
directory. The data are
readable by
xnmgraph
. Note that performance data may be saved without graphing. If a graph is later invoked via the MIB
browser, all of the previously collected data will be read in to xnmgraph and may be scrolled. See the OpenView NNM
User’s Guide section titled Collecting MIB Data.
NOTE
NOTE