Limitations Of Rpm On Ex Series Switches; Configuring Real-Time Performance Monitoring (J-Web Procedure) - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

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Configuring Real-Time Performance Monitoring (RPM)

Configuring Real-Time Performance Monitoring (J-Web Procedure)

Copyright © 2010, Juniper Networks, Inc.
When you enable one-way timestamps in a probe, the following one-way measurements
are reported:
Minimum, maximum, standard deviation, and jitter measurements for egress and
ingress times
Number of probes sent
Number of probe responses received
Percentage of lost probes

Limitations of RPM on EX Series Switches

Two-Way Active Measurement Protocol (TWAMP) is not supported on EX Series
switches.
User-configured class-of-service (CoS) classifiers can only be configured for scheduling
and marking the probe.
Timestamps:
If the responder does not support hardware timestamps, RPM can only report the
round-trip measurements and cannot calculate round-trip jitter.
EX Series switches do not support hardware timestamps for HTTP and TCP probes.
Timestamps apply only to IPv4 traffic.
For further details about RPM, see the Junos OS Services Interfaces Configuration Guide
at
http://www.juniper.net/techpubs/software/junos/index.html
Configuring the Interface for RPM Timestamping for Client/Server on an EX Series
Switch (CLI Procedure) on page 4008
Configuring Real-Time Performance Monitoring (J-Web Procedure) on page 4001
Configuring SNMP (J-Web Procedure) on page 3899
Monitoring Network Traffic Using Traceroute on page 4129
Configuring Real-Time Performance Monitoring (J-Web Procedure) on page 4001
Configuring the Interface for RPM Timestamping for Client/Server on an EX Series
Switch (CLI Procedure) on page 4008
Real-time performance monitoring (RPM) in EX Series switches enables you to configure
and send probes to a specified target and monitor the analyzed results to determine
packet loss, round-trip time, and jitter. Jitter is the difference in relative transit time
between two consecutive probes. You can set up probe owners and configure one or
more performance probe tests under each probe owner.
Chapter 141: Real-Time Performance Monitoring (RPM)
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4001