Chapter 14. Configuring and Monitoring Performance
This chapter describes how to use the Performance configuration and monitor
operating commands and includes the following sections:
v“Performance Overview”
v“Performance Reporting Accuracy”
v“Accessing the Performance Configuration Environment”
v“Performance Configuration Commands” on page216
v“Accessing the Performance Monitoring Environment” on page217
v“Performance Monitoring Commands” on page217

Performance Overview

Configuring performance allows you to monitor your CPU load. In the idle (non-work
load) state, performance reflects operations that the router continuously performs as
a part of managing external interfaces. The CPU load registered in the idle state is
dependent upon:
vNumber of protocols running.
vNumber of interfaces/cards installed.
vType of interfaces installed.
The performance function can be used as a tool for trend analysis, bottleneck
evaluation, and capacity planning. By collecting the CPU utilization information on
the router, a network manager can monitor:
vCPU load versus time of day.
vCPU load versus location of the router in the network.
vCPU load versus traffic throughput.
vCPU load versus user load (for example: TN3270 sessions, ISDN dial in clients)

Performance Reporting Accuracy

If you request a performance analysis when the 2210 first comes online, you will
see values that reflect an initialization state that has little or no network traffic, so it
is of little use in helping to balance your network load.
It is best to use performance reports that are generated under normal loads after
approximately 2 minutes of operation.

Accessing the Performance Configuration Environment

Use the following procedure to access the Performance monitor configuration
process.
1. At the OPCON prompt, enter talk 6. (For more detail on this command, see
“Chapter 5. The Configuration Process (CONFIG -Talk 6) and Commands” on
page 39 .) For example:
© Copyright IBM Corp. 1994, 1998 215
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