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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 page 216
v “Accessing the Performance Monitoring Environment” on page 217
v “Performance Monitoring Commands” on page 217
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:
v Number of protocols running.
v Number of interfaces/cards installed.
v Type 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:
v CPU load versus time of day.
v CPU load versus location of the router in the network.
v CPU load versus traffic throughput.
v CPU 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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