IJOS - Juniper Introduction to the Junos Operating System (IJOS)

All SLI Scheduled Dates Are Guaranteed to Run!

Juniper has included the previous JRE Course Content and kept the name ’IJOS’, so what used to be run as a JNCIA Bootcamp (IJOS+JRE) is now simply this course, IJOS.

This three-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. The course then delves into foundational routing knowledge and configuration examples including general routing concepts, routing policy, and firewall filters. Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos OS and monitoring basic device operations. This course is based on Junos OS Release 15.1X49.

Student Testimonials

Instructor did a great job, from experience this subject can be a bit dry to teach but he was able to keep it very engaging and made it much easier to focus. Student
Excellent presentation skills, subject matter knowledge, and command of the environment. Student
Instructor was outstanding. Knowledgeable, presented well, and class timing was perfect. Student

Click here to print this page »


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

Detailed Class Syllabus

Chapter 1: Course Introduction

Chapter 1: Course Introduction

Chapter 2: Junos Operating System Fundamentals

The Junos OS
Traffic Processing
Overview of Junos Devices

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

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
System Clean-Up
Lab 4: Operational Monitoring and Maintenance

Chapter 7: Interface Configuration Examples

Review of the Interface Configuration Hierarchy
Interface Configuration Examples
Using Configuration Groups

Chapter 8: The J-Web Interface

The J-Web GUI
Lab 5: The J-Web Interface

Chapter 10: Routing Policy

Routing Policy Overview
Case Study: Routing Policy
Lab 6: Routing Policy

Chapter 11: Firewall Filters

Firewall Filters Overview
Case Study: Firewall Filters
Unicast Reverse-Path-Forwarding Checks
Lab 7: Firewall Filters

Chapter 12: Class of Service

CoS Overview
Traffic Classification
Traffic Queueing
Traffic Scheduling
Case Study: CoS
Lab 8: Class of Service