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Introduction to the Junos Operating System - IJOS


Date of Class:


Last Day To Enroll:

700.00 700.00

  • Course Delivery: Virtual Classroom
  • Duration: 8 
  • Language: English (US)

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This one-day CLASSROOM 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. This course uses Juniper Networks SRX Series Services Gateways for the hands-on component, but the lab environment does not preclude the course from being applicable to other Juniper hardware platforms running the Junos OS. This course is based on Junos OS Release 12.1R1.9.


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


Topics Covered

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



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


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