System information

350 Observer Suite: SNMP Management
To modify the sampling behavior of a form, right-click on the form and select FORM
P
ROPERTIES. The Form Properties dialog will be displayed:
• “Title” textbox—displays the form’s title.
Note: The chart title can be changed only from the MIB Editor. If you attempt
to make a change to a chart from either the Chart window or the SNMP
Agent Request pane, a warning box is displayed:
If you do not wish to receive further warnings that changes outside of the
MIB Editor are not persistent, check the “Do not show this dialog in the
future” checkbox. To reenable warnings, click Options > Observer General
Options > SNMP and check the box entitled “Check this box to enable all
optional hint messages.”
Data Polling:
• “Polling frequency (sec)” spinbox—allows you to determine the polling frequency
with which the MIB objects in the form will be polled. Enter a number between 1 and
999 manually, or use the arrow keys to set the polling frequency.
• poll continuously option button—allows you to select continuous sampling in which
the MIB objects will be sampled every “n” seconds, where “n” is the frequency set.
• poll number of times option button and spinbox—allows you to select a set number of
times in which the MIB objects will be sampled; the number of times is set in the
spinbox attached to the option button.
• snapshot poll option button—allows you to select to have a snapshot poll of samples.
Forms are created and modified using the Forms Designer in the MIB Editor. List requests
are created and modified using the MIB Editor. See “Using the MIB Editor” on page 354.
Collecting Table Information
SNMP tables are collections of different types of objects. Picture the SNMP table as a
spreadsheet. Each row contains fields of data related to an object. Access to the SNMP
MIB table is similar to reading the spreadsheet row by row.
SNMP works in the following way: SNMP Extension requests the values of all or some
objects from the first line in the SNMP MIB table. After receiving a reply, it displays the
values in the table and requests information for the next line. SNMP Extension continues