Introduction to the Junos Operating System (IJOS) Course Overview

Introduction to the Junos Operating System (IJOS) Course Overview

The Introduction to the Junos Operating System (IJOS) course is designed to provide networking professionals with a foundational understanding of the Junos OS, used in Juniper Networks technology. The course covers key topics including the architecture, user interface, configuration basics, operational monitoring, and routine maintenance. Participants will learn about traffic processing, initial system configuration, user authentication, logging, and network time synchronization. Additionally, they will gain practical experience through hands-on labs that focus on the CLI, configuring interfaces, routing policies, firewall filters, and Class of Service (CoS). This course is essential for individuals looking to work with Juniper's network devices, as it equips them with the necessary skills to manage and troubleshoot the Junos OS, thereby enhancing their networking expertise and career prospects.

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  • Live Online Training (Duration : 24 Hours)
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♱ Excluding VAT/GST

Classroom Training price is on request

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Course Prerequisites

The Introduction to the Junos Operating System (IJOS) course is designed to provide a foundational understanding of the Junos OS, primarily for networking professionals who are new to Juniper Networks devices. To ensure that participants can successfully engage with the course content and derive maximum benefit from the training, the following prerequisites are recommended:


  • Basic understanding of networking concepts and terminology, including the OSI model and the TCP/IP protocol suite.
  • Familiarity with basic routing and switching concepts, such as IP addressing, subnetting, and the operation of Ethernet LANs.
  • Experience with using a command-line interface (CLI) on networking devices, as the course includes extensive CLI configuration and operation lessons.
  • General knowledge of network device types and their functions (routers, switches, firewalls, etc.).
  • No prior experience with Juniper Networks devices is required.

These prerequisites are intended to ensure that learners have a suitable background to grasp the course material effectively. However, the IJOS course is an introductory-level training, so the prerequisites are kept to a minimum to accommodate a broader audience of IT professionals interested in learning about the Junos OS.


Target Audience for Introduction to the Junos Operating System (IJOS)

The 'Introduction to the Junos Operating System' course is designed for networking professionals seeking Junos OS expertise.


  • Network Engineers
  • Network Administrators
  • Network Support Personnel
  • Network Designers
  • IT Professionals involved in Juniper Networks device configurations
  • Security Engineers responsible for firewall and filter configurations
  • Service Provider Technicians with a focus on core network implementation
  • Data Center Professionals working with high-end network environments
  • Network Consultants providing advice on Junos-based infrastructure
  • System Integrators integrating Junos devices into client networks
  • Professionals seeking Juniper Networks Certification (JNCIA-Junos)


Learning Objectives - What you will Learn in this Introduction to the Junos Operating System (IJOS)?

Introduction to Learning Outcomes

The Introduction to the Junos Operating System course equips participants with a foundational understanding of Junos OS, network configuration, and operation principles for Juniper devices.

Learning Objectives and Outcomes

  • Understand the core functionality of the Junos OS and its traffic processing architecture.
  • Navigate and manage the Junos CLI, including both operational and configuration modes.
  • Perform initial system configurations, including setting up interfaces and applying default settings.
  • Implement secondary system configurations related to user authentication, system logging, and SNMP.
  • Monitor and maintain the health and operation of a Junos device, including system clean-up and password recovery procedures.
  • Configure and manage different types of interfaces on Junos devices using best practice examples.
  • Develop and implement routing policies to control traffic flow through Juniper networks.
  • Design and apply firewall filters for packet filtering and network protection.
  • Understand the basics of Class of Service (CoS) and manage traffic prioritization through classification, queueing, and scheduling.
  • Utilize network utilities and perform system maintenance to ensure ongoing network stability and security.