This four-day course provides students with the foundational knowledge required to configure, verify, and troubleshoot devices that run Junos OS.
Students will gain a wide variety of practical experience with using the command-line interface (CLI). The course focuses on routers and switches,
and explains Layer 3 network interface basics, routing tables, static routes, OSPF, Layer 2 switchports, user accounts, firewall filters, routing policy,
and troubleshooting.
Particular attention is given to the power of the candidate configuration, rolling back changes, and the power of the Junos OS configuration
hierarchy. The course also discusses the key architectural components of the Junos software, the separation of the control plane and the data
plane, and the reasons that Junos OS is built for automation.
Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring Junos OS and monitoring basic device
operations. This course is based on Junos OS Release 22.1R1.10.

After successfully completing this course, you should be able to:
• Explain the most important benefits of Junos OS and describe the kind of devices that
run it.
• Explain how to remotely connect to the Junos CLI, and how to use operational mode
to verify system information.
• Describe the reasons that IPv6 was created and explain how to read an IPv6 address.
• Explain the difference between a physical network interface and a logical unit.
• Demonstrate how the Junos OS CLI can reveal detailed information about network
interfaces.
• Describe how Junos OS stores its configuration using a logical and hierarchical
structure.
• Demonstrate how to deploy configuration in Junos OS, and how the commit process
helps to prevent mistakes.
• Demonstrate the commands and keyboard shortcuts that make Junos CLI
configurations more efficient.
• Describe how routes enter a routing table, and how routers choose the best routes for
forwarding traffic.
• Describe how static routes manually install routing information into a router.
• Describe how routing protocols can automatically find the best path to remote
destinations.
• Demonstrate how to deploy OSPF to automatically advertise and learn prefixes in a
single network.
• Explain how to manage a switch that runs Junos OS.
• Explain how to manage a switch that runs Junos OS.
• Demonstrate how to enable some crucial Junos OS administrative features.
• Describe the most important things to consider when deploying a new device that
runs Junos OS.
• Demonstrate how knowledge of the underlying Junos OS architecture can bring
advantages to network operators.
• Demonstrate how a knowledge of the underlying Junos OS software helps you when
upgrading Junos and troubleshooting networks.
• Demonstrate the most important and useful tools available in Junos OS that can help
you fix real-world problems.
• Explain how Junos OS can filter and manipulate traffic in real time using stateless
firewall filters.
• Explain how to configure stateless firewall filters that accept or discard packets.
• Demonstrate some powerful CLI configuration options that can increase your
productivity.
• Describe the advantages and configuration of a variety of different interface types and
features.
• Demonstrate how the architecture of Junos OS is built with automation in mind.
• Explain how to continue your studies once the course has been completed.

Additional objectives for self-study:
• Explain how to utilize backup static routes, routing instances,
OSPF areas, and BGP.
• Deploy some of the advanced features available within a
firewall filter.
• Describe advanced troubleshooting and monitoring features
available in Junos OS.
• Demonstrate some advanced device administration features.
• Describe how routing policies control what prefixes can enter
the routing table, and what prefixes can be advertised by
protocols.
• Describe the tasks involved in upgrading Junos OS.
• Use the J-Web graphical interface to make configuration
changes and monitor and maintain Junos devices.
• Describe the most common network cables in use today, and
the reasons for using the Ethernet protocol in modern
networks.
• Describe how IP addresses create end-to-end network
communication.
• Explain how switches enable Layer 2 Ethernet communication
between hosts on a shared LAN segment.
• Describe the difference between TCP and UDP.

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

• Students are highly recommended to
have watched the self-study Getting
Started with Networking (e-learning) video
series before attending this course.
• Basic understanding of IPv4 and IPv6.
• Basic understanding of Ethernet and
MAC address learning.
• Basic understanding of TCP and UDP.
• Basic understanding of the layered OSI
and TCP/IP models.

Day 1

Chapter 1: Course Introduction

Chapter 2: Junos Operating System Fundamentals
　 　The Junos OS
　 　Traffic Processing
　 　Overview of Junos Devices

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
　 　Lab 1: User Interface Options

Chapter 5: Initial Configuration

　 　Factory-Default Configuration
　 　Initial Configuration
　 　Interface Configuration
　 　Lab 2: Initial System Configuration

Day 2

Chapter 6: Secondary System Configuration

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

Chapter 7: 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 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
　 　Lab 5: Routing Fundamentals

Day 3

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

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