Juniper Networks J-Series manual Verifying RPM Statistics

Chapter 14: Configuring RPM Probes

Minimum Rtt: 1093 usec, Maximum Rtt: 1372 usec, Average Rtt: 1231 usec,

Jitter Rtt: 279 usec, Stddev Rtt: 114 usec

Probes sent: 3, Probes received: 3, Loss percentage: 0

Owner: Rpm-Bgp-Owner, Test: Rpm-Bgp-Test-1

Target address: 10.209.152.37, Probe type: icmp-ping, Test size: 5 probes

Routing Instance Name: LR1/RI1 Probe results:

Response received, Fri Oct 28 05:20:23 2005 Rtt: 662 usec

Results over current test:

Probes sent: 5, Probes received: 5, Loss percentage: 0

Measurement: Round trip time

Minimum: 529 usec, Maximum: 662 usec, Average: 585 usec,

Jitter: 133 usec, Stddev: 53 usec Results over all tests:

Probes sent: 5, Probes received: 5, Loss percentage: 0

Measurement: Round trip time

Minimum: 529 usec, Maximum: 662 usec, Average: 585 usec,

Jitter: 133 usec, Stddev: 53 usec

Meaning The output shows the probe results for the RPM tests configured on the Services Router. Verify the following information:

■Each configured test is displayed. Results are displayed in alphabetical order, sorted first by owner name and then by test name.

■The round-trip times fall within the expected values for the particular test. The minimum round-trip time is displayed as Minimum Rtt, the maximum round-trip time is displayed as Maximum Rtt, and the average round-trip time is displayed as Average Rtt.

A high average round-trip time might mean that performances problems exist within the network. A high maximum round-trip time might result in high jitter values.

■The egress (outbound) trip times fall within the expected values for the particular test. The minimum outbound time is displayed as Minimum egress time, the maximum outbound time is displayed as Maximum egress time, and the average outbound time is displayed as Average egress time.

■The ingress (inbound) trip times fall within the expected values for the particular test. The minimum inbound time is displayed as Minimum ingress time, the maximum inbound time is displayed as Maximum ingress time, and the average inbound time is displayed as Average ingress time.

■The number of probes sent and received is expected.

Lost probes might indicate packet loss through the network. Packet losses can occur if the remote server is flapping. If the RPM probe type is TCP or UDP, complete probe loss might indicate a mismatch in TCP or UDP RPM port number.

■For Type, each peer is configured as the correct type (either internal or external).

Related Topics For a complete description of show services rpm probe-resultsoutput, see the JUNOS System Basics and Services Command Reference.

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