Overview; Network Monitor Probes - HP 7102dl - ProCurve Secure Router Configuration Manual

N o t e

Overview

Network monitoring serves two functions:
It tests and controls static and Dynamic Host Configuration Protocol
(DHCP) routes.
It tests network performance, logging when performance falls below a
certain level.
For the ProCurve Secure Router, testing routes is the primary purpose of
network monitoring. Network monitoring can detect a route that fails at any
point en route to the destination and remove the failed route so that a backup
route can take effect.
Network monitoring relies on two connected mechanisms:
Network monitor probes—A probe collects the information by which a
route or a network server is tested. A probe can consist of packets as
simple as Internet Control Message Protocol (ICMP) echo packets (pings)
or as complex as HTTP requests for particular information.
Network monitor tracks—A track uses probes to test routes or remote
servers, with the goal of removing failed routes and logging poor perfor-
mance.
This overview introduces probes and tracks so that you can understand how
they work together to serve the functions of network monitoring.

Network Monitor Probes

A probe periodically sends out packets to collect information about the state
of a route or of a device such as a remote server. Each time that a probe sends
out a packet, the probe is said to have run one test.
A probe packet is the packet sent out as a test. A probe is the entire process
of periodically transmitting probe packets and determining whether tests pass
or fail.
Network Monitoring
Overview
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