Cisco Systems OL-11291-01 Measuring Network Performance for IP, FTP Historical Statistics Window

Chapter 3 Using IPM to Measure Network Performance

Measuring Network Performance for IP

Figure 3-10 FTP Historical Statistics Window

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

Measuring Network Performance for IP

In an IP network there are two types of measurements that you can take:

•IP Echo—Measures the total round-trip latency from the source to the target device. The SA Agent feature in the source router issues an Internet Control Message Protocol (ICMP) ping to the target device and extracts the latency data from the reply.

See Measuring End-to-End Performance for IP for more information.

•IP Path Echo—Measures the total round-trip latency as well as the incremental latency for each hop in all paths between the source router and the target device. Path Echo is available only for the IP protocol.

The SA Agent feature first issues a traceroute command to determine the path through the network from the specified source to the specified target device.

The data returned from the traceroute command contains the host name or IP address of each of the routers in the path. SA Agent then issues ICMP pings to each of the routers listed in the traceroute data.

The ICMP ping returns statistics regarding the latency, availability, and errors between the specified source and each of the routers.

See Measuring Hop-by-Hop Performance for IP for more information.

	User Guide for Internetwork Performance Monitor
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