Training Offering

Introduction to the Junos Operating System


Price £1,750 before tax
Length: 3 Days
Lunch : Included
Courseware : Included
Course code: JUN_IJOS
Delivery Type Classroom

Session dates

See sessions for other countries
Date Location
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
  • Dublin - Arrow ECS
    £1,750 before tax
  • London - Dowgate Hill
    £1,750 before tax
  • Virtual Classroom
    £1,750 before tax
This training is also available as onsite training. Feel free to contact us for more information.


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.

Introduction to the Junos Operating System (IJOS) is an introductory level course.

Relevant Juniper Products

• ACX Series
• Appsecure
• Contrail
• EX Series
• JSA Series
• Junos OS
• Junos Space
• M Series
• MX Series
• NFX Series
• PTX Series
• QFabric
• QFX Series
• SRX Series
• T Series


• Describe the basic design architecture of the Junos OS.
• 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.
• Explain basic routing operations and concepts.
• View and describe routing and forwarding tables.
• Configure and monitor static routing.
• Configure and monitor OSPF.
• Describe the framework for routing policy and firewall filters.
• Explain the evaluation of routing policy and firewall filters.
• Identify instances where you might use routing policy.
• Write and apply a routing policy.
• Identify instances where you might use firewall filters.
• Write and apply a firewall filter.
• Describe the operation and configuration for unicast reverse path forwarding (RPF).


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.


Day 1

Course Introduction

Junos Operating System Fundamentals
• The Junos OS
• Traffic Processing
• Overview of Junos Devices

User Interface Options: The Junos CLI
• User Interface Options
• The Junos CLI: CLI Basics
• The Junos CLI: Operational Mode
• The Junos CLI: Configuration Mode
LAB 1: The Junos CLI
User Interface Options: The J-Web Interface
• The J-Web GUI 
• Configuration 
LAB 1: The J-Web Interface

Initial Configuration
• Factory-Default Configuration
• Initial Configuration
• Interface Configuration
LAB 2: Initial System Configuration

Day 2

Secondary System Configuration
• User Configuration and Authentication
• System Logging and Tracing
• Network Time Protocol
• Archiving Configurations • SNMP
LAB 3: Secondary System Configuration

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
Interface Configuration Examples
• Review of the Interface Configuration Hierarchy
• Interface Configuration Examples
• Using Configuration Groups
Routing Fundamentals
• Routing Concepts: Overview of Routing
• Routing Concepts: The Routing Table
• Routing Concepts: Routing Instances
• Static Routing
• Dynamic Routing
LAB 5: Routing Fundamentals

Day 3

Routing Policy
• Routing Policy Overview
• Case Study: Routing Policy
LAB 6: Routing Policy

Firewall Filters
• Firewall Filters Overview
• Case Study: Firewall Filters
• Unicast Reverse-Path-Forwarding Checks
LAB 7: Firewall Filters
Class of Service
• CoS Overview
• Traffic Classification
• Traffic Queueing
• Traffic Scheduling
• Case Study: CoS
LAB 8: Class of Service
JTAC Procedures
• Opening a Support Case
• Customer Support Tools
• Transferring Files to JTAC
Juniper Security Concepts
• Security Challenges
• Juniper Networks’ Security Focus
IPv6 Fundamentals
• IPv6 Addressing
• Protocols and Services
• Configuration


For further information regarding Juniper Certification, please click here.

This course can be purchased using Juniper Training Credits - subject to terms and conditions.

Please note that JTCs can only be used against the normal full list price of a course and are not applicable against any discounted rates.

For more information, or to make a booking, please contact us on 0870 251 1000 or email

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