Juniper Networks J-Series manual Monitoring PPP, Cumulative Jitter for a Probe

Chapter 7: Monitoring the Router and Routing Operations

Table 77: Summary of Key RPM Output Fields (continued)

Field Values Additional Information

Cumulative Jitter for a Probe

Samples Total number of probes used for the data set.

The Services Router maintains records of the most recent 50 probes for each configured test. These 50 probes are used to generate RPM statistics for a particular test.

Earliest	System time when the first probe in the sample was
Sample	received.
Latest	System time when the last probe in the sample was
Sample	received.
Mean Value	Average jitter for the 50–probe sample.
Standard	Standard deviation of the jitter values for the
Deviation	50–probe sample.
Lowest	Smallest jitter value, as measured over the 50–probe
Value	sample.
Time of	System time when the lowest value in the 50–probe
Lowest	sample was received.
Sample
Highest	Highest jitter value, as measured over the 50–probe
Value	sample.
Time of	System time when the highest jitter value in the
Highest	50–probe sample was received.
Sample

Monitoring PPP

PPPmonitoring information includes PPP address pool information, session status for PPP interfaces, cumulative statistics for all PPP interfaces, and a summary of PPP sessions.

NOTE: PPP monitoring information is available only in the CLI. The J-Web interface does not include pages for displaying PPP monitoring information.

To display PPP monitoring information, enter the following CLI commands:

■show ppp address-pool pool-name

■show ppp interface interface-name

■show ppp statistics

■show ppp summary

Using the Monitoring Tools ■ 147