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RPM Terms

Before configuring and monitoring RPM on J-series Services Routers, become familiar with the terms defined in Table 83.

Table 83: RPM Terms

Term

Definition

egress

Outbound. Characterizing packets exiting a Services Router.

ingress

Inbound. Characterizing packets entering a Services Router.

jitter

Variation in the rate at which packets in a stream are received, which can cause quality degradation in some real-time applications such as voice over IP (VoIP) and video.

probe

An action taken or an object used to learn something about the state of the network. Real-time performance monitoring (RPM) uses several types of requests to probe a network.

probe interval

Time, in seconds, between probe packets.

real-time performance monitoring (RPM)

Monitoring tool that measures the performance of a network between two endpoints by collecting statistics on packet loss, round-trip time, and jitter.

RPM target

Remote network endpoint, identified by an IP address or URL, to which the Services Router sends a real-time performance monitoring (RPM) probe.

RPM test

A collection of real-time performance monitoring (RPM) probes sent out at regular intervals.

test interval

Time, in seconds, between RPM tests.


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