Monitoring and Reporting Tools in Junos OS

Junos OS, the operating system for Juniper Networks devices, provides a variety of monitoring and reporting tools that are essential for network engineers. These tools are particularly important for those studying for the JNCIS-ENT certification, as they provide valuable insights into the performance and health of a network. In this blog post, we will explore some of these tools and how they can be used.

SNMP (Simple Network Management Protocol)

SNMP is a protocol used for managing devices on IP networks. Junos OS supports SNMPv1, SNMPv2c, and SNMPv3, allowing network administrators to monitor network performance, find and solve network problems, and plan for network growth.

set snmp community public authorization read-only
set snmp community private authorization read-write

Syslog

Syslog is a standard for message logging. It allows separation of the software that generates messages from the system that stores them and the software that reports and analyzes them. Junos OS can send system log messages to a file or to a syslog server.

set system syslog user * any emergency
set system syslog file messages any notice
set system syslog file messages authorization info

Junos Telemetry Interface (JTI)

JTI provides a push mechanism for streaming data from devices running Junos OS. It uses Google's gRPC framework to stream data to a telemetry collector.

set services analytics
set services analytics streaming-server 10.0.0.1 port 50000
set services analytics export-profile test local-address 10.0.0.2

Real-Time Performance Monitoring (RPM)

RPM is a feature of Junos OS that allows you to measure network performance by sending probes to monitor traffic on the network. This can be used to monitor latency, jitter, and packet loss on the network.

set services rpm probe test target address 10.0.0.1
set services rpm probe test test test-interval 15

SNMP MIBs (Management Information Bases)

MIBs are hierarchical databases of identifiers, or OIDs, that are used by SNMP to manage devices on a network. Junos OS supports a wide range of standard and enterprise-specific MIBs.

set snmp view allOids oid .1 include
set snmp community public view allOids

In conclusion, Junos OS provides a wide range of monitoring and reporting tools that can be used to manage and troubleshoot networks. Understanding these tools is essential for anyone studying for the JNCIS-ENT certification.