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User Guide for Internetwork Performance Monitor
OL-11291-01
Chapter 3 Using IPM to Measure Network Performance
Measuring Network Performance for UDP
For more detailed information about the statistics displayed in the TCP Historical Statistics window, see
the “TCP Historical Statistics Window” topic in the online help.
Measuring Network Performance for UDP
IPM’s UDP operation measures round-trip latency between a source and any IP-enabled device running
UDP services. Latency is computed by measuring the time taken to send a datagram and receive a
response from the target device. The UDP operation also measures availability and errors for UDP
services.
To measure end-to-end performance for UDP:
Step 1 Define a device as the source device from which to measure performance. For details on defining a
source device, see Defining a Source Device.
Step 2 Define a device as the target of connection requests from the source device. For details on defining a
target, see Defining a Target.
To control how statistics are collected, use the DefaultUDP operation or define your own UDP operation.
For details on defining a UDP operation, see Defining a UDP Operation.
Step 3 Define a collector to measure performance between the source router and target you defined. For details
on defining a collector, see Defining a Collector. If you set the collector’s schedule to On Demand, start
the collector when desired.
Step 4 View the statistics in the UDP Historical Statistics window. For details on viewing end-to-end statistics
for UDP, see Viewing Statistics for UDP.
Defining a UDP Operation
IPM provides a default UDP operation for measuring performance between a source and target. In
addition, IPM provides the option to create, modify, or delete your own UDP operations from the UDP
Operation Configuration window.
To define a UDP operation:
Step 1 From the IPM Main Window, select Edit > Configuration.
The Configuration window appears.
Step 2 Click Operation.
The Operation Configuration window appears within the Configuration window.
Step 3 Click UDP.
The UDP Operation Configuration window (Figure 3-22) appears.