Cisco Systems OL-11291-01 manual Operation Description, Payload is set to, DNS Name Server

Chapter 2 Getting Started With IPM

Configuring the IPM Components

Step 10 In the Source Interface field, enter a valid IP address of the source device interface. This is the IP address of the source device interface to which the packets are returned from the destination

The Source Interface field is an optional field. If you do not specify an IP address, IPM configures collector based on the properties specified in the ipm.env file.

Step 11 From the Targets list, select the device to designate as the target. If you already know the name of the target, start typing the name in the Search field.

The cursor moves to the matching target in the Targets list.

If you select a DNS, DHCP, or HTTP operation, the Targets list is disabled because these operations do not use targets.

Step 12 From the Operations list, select the operation to use for this collector. If you already know the name of the operation, start typing the name in the Search field

The cursor moves to the matching operation in the Operations list.

When you install IPM, a group of predefined operations is provided. The predefined operations are described in Table 2-1.

Table 2-1 Predefined Operations

Operation	Description
DefaultDHCP	Measures end-to-end latency for acquiring a new DHCP lease.
DefaultDLSw	Measures end-to-end latency in a network which uses DLSw to route
	SNA traffic over an IP network. Request size is set to 64 and Response
	Payload is set to 64.
DefaultDNS	Measures end-to-end latency for DNS lookups. DNS Name Server is
	set to the IP address of the DNS server configured on the system on
	which the IPM server is running. The DNS Lookup Name is set to the
	name of the host to look up for the DNS request.
	When you create a non-default operation, it is mandatory to specify a
	DNS Name Server.
DefaultIpEcho	Measures end-to-end latency in an IP network. Protocol is set to IP,
	Packet Priority is set to 0 (no priority), and Request Payload is set to
	64 bytes.
DefaultIpPathEcho	Measures hop-by-hop latency in an IP network. Packet Priority is set
	to 0 (no priority), Request Payload is set to 64 bytes, Maximum Paths
	is set to 5, Maximum Hops is set to 15, and sample interval is set to
	180 seconds.
DefaultNNTP	Measures the time to perform a TCP connect operation directed at the
	selected target on the standard Network News Transport Protocol
	(NNTP) port 119. Packet Priority is set to 0 (no priority) and Target
	Port is set to 119.
DefaultPOP3	Measures the time to perform a TCP connect operation directed at the
	selected target on the standard Post Office Protocol v.3 (POP3) port
	110. Packet Priority is set to 0 (no priority) and Target Port is set to
	110.

	User Guide for Internetwork Performance Monitor
OL-11291-01		2-15