user manual

4-6
User Guide for Internetwork Performance Monitor
OL-11291-01
Chapter 4 Modifying IPM Components
Working With Operations
If you try to delete a target and IPM issues an error message such as Could not delete the target,
appears. The reason could be:
• The target is being used as a final target by one or more collectors.
• The target is being used as an intermediate hop by one or more Path Echo collectors.
To resolve this problem:
Step 1 Make sure the target is not being used as a final target by any collector. On the IPM Main Window, look
for the target’s name in the Target column. If you find the target’s name, you must delete that collector
before you can delete the target.
If you cannot find the target’s name, remember that the Path Echo Historical Statistics window shows
only the 10 most used paths.
To see the rest of the intermediate paths, you must use the IPM Path Usage report. To do so:
a. On the CiscoWorks homepage, select Reports > Configuration Reports > Collectors.
The Collector Information page appears.
b. Select the first Path Echo collector in the list and click Path Usage in the Details column.
The Path Usage page appears.
c. Click a path to expand it, showing all of its intermediate hops, and look for the target’s name. If you
find the target’s name, you must delete that Path Echo collector before you can delete the target.
d. Repeat this procedure for every path under every Path Echo collector.
Working With Operations
An IPM operation is an alias for a set of parameters used in measuring performance. information about
working with operations is provided in the following subsections:
• Viewing a List of Defined Operations
• Viewing Operation Properties
• Adding a New Operation
• Setting Thresholds and Generating Alerts
• Deleting Operations
Viewing a List of Defined Operations
To view a list of defined operations:
Step 1 From the IPM Main Window, select Edit > Configuration.
The Configuration window (Figure 2-3) appears.
Step 2 Click Operations.
The list of operations expands to show the types of operations that were defined.