Cisco Systems OL-11291-01 Click Path Echo, Path Echo Operation Configuration window -13 appears

Chapter 3 Using IPM to Measure Network Performance

Measuring Network Performance for IP

Step 3 Click Path Echo.

The Path Echo Operation Configuration window (Figure 3-13) appears.

Figure 3-13 IP Path Echo Operation Configuration Window

Step 4 In the Name field, enter a descriptive name to assign to the operation. In the Description field, you can enter a brief description of the operation, including its purpose.

Step 5 Select the IP QoS Type as IP Precedence or DCSP. The IP QoS Settings values change based on your IP QoS Type selection.

•If you have selected IP QoS Type as IP Precedence, select the IP QoS Settings value from the drop-down. The value you select sets the priority for the HTTP request packet. The default setting is 0 (no priority). This option sets the ToS bits in the IP packet.

•If you have selected IP QoS Type as DSCP, select the desired IP QoS Settings value from the drop-down. The value you select defines the packet priority and is based on the DSCP RFC standards.

Step 6 In the Request Payload field, enter the number of bytes to use for the size of the payload of the ICMP echo request packet. The default setting is 64 bytes.

•To specify the maximum number of paths to discover, enter a value in the Maximum Paths field. The valid range is 1 to 128 paths. The default setting is 5. To ensure that you do not miss collecting statistics for relevant paths, set this value to a number slightly higher than the expected number of paths.

•To specify the maximum number of hops to discover, enter a value in the Maximum Hops field. The valid range is 1 to 25 hops. The default setting is 25 hops. To ensure that you do not miss collecting statistics for relevant hops, set this value to a number slightly higher than the expected number of hops.

	User Guide for Internetwork Performance Monitor
OL-11291-01		3-23