Cisco Systems OL-11291-01 manual See SA Agent, GL-6

Glossary

NMVT	Network Management Vector Transport. SNA message consisting of a series of vectors conveying
	network management specific information.
NSPECHO	VTAM application running in the mainframe to support the IPM and SA Agent solution. NSPECHO
	is used by IPM for measuring latency to the mainframe.

O

operation	Set of parameters used in measuring network performance statistics. The parameters specify the type
	of measurement to be performed and many other parameters specific to the type of measurement
	being taken.

P

Path Echo

physical unit

ping

PU

Measures the total latency as well as the incremental latency for each hop in each path between the source router and the target device. Path Echo is available only for the IP protocol.

See PU.

packet internet gropher. ICMP echo message and its reply. Often used in IP networks to test the reachability of a network device.

physical unit. SNA component that manages and monitors the resources of a node, as requested by an SSCP. There is one PU per node.

Q

QoS	Quality of Service. Measure of performance for a transmission system that reflects its transmission
	quality and service availability.
Quality of Service	See QoS.

R

request/response unit			See RU.
Response Time			See SA Agent.
Reporter
round-trip time			See RTT.
route			Path through an internetwork between a specific source and target.
router			Network layer device that uses one or more metrics to determine the optimal path along which
			network traffic should be forwarded. Routers forward packets from one network to another based on
			network layer information.
		User Guide for Internetwork Performance Monitor
	GL-6		OL-11291-01