Cisco Systems OL-11291-01 manual Adding a New Operation, Setting Thresholds and Generating Alerts

Chapter 4 Modifying IPM Components

Working With Operations

Adding a New Operation

An IPM operation is an alias for a set of parameters used for measuring performance between source router and a target device.

IPM allows you to define packet priorities when you define an operation. You can select the packet priority as either IP Precedence or DSCP, with IP Precedence being the default selection. Based on the selection you make, IPM sets the values for the IP QoS Type.

To define an operation:

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.

Step 3 Click an operation type.

The Operation Configuration window (Figure 4-3) shows the default configuration for the selected operation type and the list of operations expands to show all defined operations of that type.

Step 4 Set the options for the operation you want to define. Detailed information about defining operations to measure performance for DHCP, DLSw, DNS, HTTP, IP, SNA, TCP, FTP, UDP, and Enhanced UDP is provided in the “Using IPM to Measure Network Performance” chapter.

Step 5 Click Close to complete the definition of a monitoring operation.

IPM redisplays the Operation window and the new operation is added to the list of defined operations.

Setting Thresholds and Generating Alerts

From the Operation Configuration window, you can configure thresholds and event notifications on the source.

To set thresholds and generate alerts using an operation:

Step 1 Select an existing operation or define a new operation by following the steps in Adding a New Operation.

Step 2 In the Generate Action Event field, select one of the algorithms to be used by IPM to calculate threshold violations. The following values are possible:

•Never—Do not calculate threshold violations. This is the default.

•Immediate—When the latency exceeds the rising threshold or drops below the falling threshold, immediately perform the action defined by Action Event Type.

•Consecutive—When the latency exceeds the rising threshold or drops below the falling threshold X times consecutively, perform the action defined by Action Event Type. Optionally, specify the number of consecutive occurrences. The default is 5.

User Guide for Internetwork Performance Monitor

OL-11291-01 4-9