Rpm Overview; Rpm Probes; Probe And Test Intervals; Jitter Measurement With Hardware Timestamping - Juniper J-Series Administration Manual

J-series Services Router Administration Guide
Table 138: RPM Terms (continued)
Term
RPM target
RPM test
test interval

RPM Overview

Real-time performance monitoring (RPM) allows you to perform service-level
monitoring. When RPM is configured on a Services Router, the router calculates
network performance based on packet response time, jitter, and packet loss. These
values are gathered by Hypertext Transfer Protocol (HTTP) GET requests, Internet
Control Message Protocol (ICMP) requests, and TCP and UDP requests, depending
on the configuration.
This section contains the following topics:

RPM Probes

You gather RPM statistics by sending out probes to a specified probe target, identified
by an IP address or URL. When the target receives the probe, it generates responses,
which are received by the Services Router. By analyzing the transit times to and from
the remote server, the Services Router can determine network performance statistics.
The Services Router sends out the following probe types:
268

RPM Overview

Definition
Remote network endpoint, identified by an IP address or URL, to which the Services Router
sends a real-time performance monitoring (RPM) probe.
A collection of real-time performance monitoring (RPM) probes sent out at regular intervals.
Time, in seconds, between RPM tests.
RPM Probes on page 268
RPM Tests on page 269
Probe and Test Intervals on page 269
Jitter Measurement with Hardware Timestamping on page 269
RPM Statistics on page 270
RPM Thresholds and Traps on page 271
RPM for BGP Monitoring on page 271
HTTP GET request at a target URL
HTTP GET request for metadata at a target URL
ICMP echo request to a target address (the default)
ICMP timestamp request to a target address
UDP ping packets to a target device
UDP timestamp requests to a target address
TCP ping packets to a target device