Cisco Systems OL-11291-01 manual Measuring Network Performance for SNA

Chapter 3 Using IPM to Measure Network Performance

Measuring Network Performance for SNA

Figure 3-18 IP Path Echo Combined Hop List Window

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It is easier to compare different paths and hops when viewing combined statistics.

To return to separate graphs for each path or hop, select View > Show Separate.

For more detailed information about the statistics displayed in the Path Echo Historical Statistics window, see the “Path Echo Historical Statistics Window” topic in the online help.

Measuring Network Performance for SNA

For SNA environments, IPM allows you to measure the round-trip latency to an MVS mainframe using the following types of SNA sessions:

•System services control point-logical unit (SSCP-LU)

•LU 0

•LU 2

Since SNA is a connection-oriented protocol, the only type of measurement you can request is Echo.

When measuring latency to an SNA mainframe, IPM measures round-trip latency between a source device and an echo response program running on an SNA mainframe.

You can install NSPECHO, a program provided by IPM, on an MVS mainframe to provide the echo back to the router.

	User Guide for Internetwork Performance Monitor
OL-11291-01		3-29