Chapter 7: Monitoring the Router and Routing Operations

Monitoring RPM Probes

The RPM information includes the round-trip time, jitter, and standard deviation values for each configured RPM test on the Services Router. To view these RPM properties, select Monitor>RPM in the J-Web interface, or enter the following CLI show command:

show services rpm probe-results

In addition to the RPM statistics for each RPM test, the J-Web interface displays the round-trip times and cumulative jitter graphically. Figure 11 on page 145 shows sample graphs for an RPM test.

Figure 11: Sample RPM Graphs

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In Figure 11 on page 145, the round-trip time and jitter values are plotted as a function of the system time. Large spikes in round-trip time or jitter indicate a slower outbound (egress) or inbound (ingress) time for the probe sent at that particular time.

Table 77 on page 145 summarizes key output fields in RPM displays.

Table 77: Summary of Key RPM Output Fields

Field

Values

Additional Information

Currently Running Tests

 

Graph

 

 

Click the Graph link to display the graph (if it is not

 

 

 

already displayed) or to update the graph for a particular

 

 

 

test.

Owner

Configured owner name of the RPM test.

 

Test Name

Configured name of the RPM test.

 

Probe Type

Type of RPM probe configured for the specified test.

 

 

Following are valid probe types:

 

 

http-get

 

 

http-get-metadata

 

 

icmp-ping

 

 

icmp-ping-timestamp

 

 

tcp-ping

 

 

udp-ping

 

Target

IP address or URL of the remote server that is being

 

Address

probed by the RPM test.

 

Source

Explicitly configured source address that is included

If no source address is configured, the RPM probe

Address

in the probe packet headers.

packets use the outgoing interface as the source address,

 

 

 

and the Source Address field is empty.

Using the Monitoring Tools 145

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Juniper Networks J-Series manual Monitoring RPM Probes, Show services rpm probe-results, Summary of Key RPM Output Fields