JUN-IJOS – Introduction to the Junos Operating System

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  • Code: JUN-IJOS
  • Duration: Days 1
  • Price per delegate: £595.00 +VAT

Trained over 60000 delegates

Course delivered by industry expert instructors

Highly competitive pricing


Course Description

This one-day course provides students with the foundational knowledge required to work with the Junos operating system and to configure Junos devices.

The course provides a brief overview of the Junos device families and discusses the key architectural components of the software. Key topics include user interface options with a heavy focus on the command-line interface (CLI), configuration tasks typically associated with the initial setup of devices, interface configuration basics with configuration examples, secondary system configuration, and the basics of operational monitoring and maintenance of Junos devices.
Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos OS and monitoring basic device operations.

Target Student:

This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.


Students should have basic networking knowledge and an understanding of the Open Systems Interconnection (OSI) reference model and the TCP/IP protocol suite.

Delivery Method:

Instructor led, group-paced, classroom-delivery learning model with structured hands-on activities.

Performance-Based Objectives:

After successfully completing this course, you should be able to:

  • Describe the basic design architecture of the Junos OS.
  • Identify and provide a brief overview of Junos devices.
  • Navigate within the Junos CLI.
  • Perform tasks within the CLI operational and configuration modes.
  • Restore a Junos device to its factory-default state.
  • Perform initial configuration tasks.
  • Configure and monitor network interfaces.
  • Describe user configuration and authentication options.
  • Perform secondary configuration tasks for features and services such as system logging (syslog) and tracing, Network Time Protocol (NTP), configuration archival, and SNMP.
  • Monitor basic operation for the Junos OS and devices.
  • Identify and use network utilities.
  • Upgrade the Junos OS.
  • Perform file system maintenance and password recovery on a Junos device.
  • Navigate within the Junos J-Web interface.

Course Content

Day 1
Chapter 1: Course Introduction
Chapter 2: Junos Operating System Fundamentals
 The Junos OS
 Traffic Processing
 Platforms Running the Junos OS
Chapter 3: User Interface Options
 User Interface Options
 The Junos CLI: CLI Basics
 The Junos CLI: Operational Mode
 The Junos CLI: Configuration Mode
 Lab 1: The Junos CLI
Chapter 4: Initial Configuration
 Factory-Default Configuration
 Initial Configuration
 Interface Configuration
 Lab 2: Initial System Configuration
Chapter 5: Secondary System Configuration
 User Configuration and Authentication
 System Logging and Tracing
 Network Time Protocol
 Archiving Configurations
 Lab 3: Secondary System Configuration
Chapter 6: Operational Monitoring and Maintenance
 Monitoring Platform and Interface Operation
 Network Utilities
 Maintaining the Junos OS
 Password Recovery
 Lab 4: Operational Monitoring and Maintenance
Appendix A: Interface Configuration Examples
 Review of the Interface Configuration Hierarchy
 Interface Configuration Examples
 Using Configuration Groups
Appendix B: The J-Web Interface
 The J-Web GUI
 Lab 5 (Optional): The J-Web Interface