Introduction to the Junos Operating System (IJOS)

This 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.

DAY ONE

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: The Junos CLI

• User Interface Options
• The Junos CLI: CLI Basics
• The Junos CLI: Operational Mode
• The Junos CLI: Configuration Mode

Chapter 4: User Interface Options: The J-Web Interface

• The J-Web GUI
• Configuration

Chapter 5: Initial Configuration

• Factory-Default Configuration
• Initial Configuration
• Interface Configuration

DAY TWO

Chapter 6: Secondary System Configuration

• User Configuration and Authentication
• System Logging and Tracing
• Network Time Protocol
• Archiving Configurations
• SNMP

Chapter 7: Operational Monitoring and Maintenance

• Monitoring Platform and Interface Operation
• Network Utilities
• Maintaining the Junos OS
• Password Recovery
• System Clean-up

Chapter 8: Interface Configuration Examples

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

Chapter 9: Routing Fundamentals

• Routing Concepts: Overview of Routing
• Routing Concepts: The Routing Table
• Routing Concepts: Routing Instances
• Static Routing
• Dynamic Routing

DAY THREE

Chapter 10: Routing Policy

• Routing Policy Overview
• Case Study: Routing Policy

Chapter 11: Firewall Filters

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

Chapter 12: Class of Service

• CoS Overview
• Traffic Classification
• Traffic Queueing
• Traffic Scheduling
• Case Study: CoS

Chapter 13: JTAC Procedures

• Opening a Support Case
• Customer Support Tools
• Transferring Files to JTAC

Chapter 14: Juniper Security Concepts

• Security Challenges
• Juniper s Security Focus

Appendix A: IPv6 Fundamentals

• IPv6 Addressing
• Protocols and Services
• Configuration

Appendix B: Junosphere (For Use with IJOS Junosphere Version Only)

• Accessing the Junosphere Interface
• Accessing Active Topologies

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

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