Juniper Networks Introduction to the Junos Operating System (IJOS)

Price
$4,000.00 USD

Duration
4 Days

Delivery Methods
Virtual Instructor Led
Private Group

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Course Overview

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.

Course Objectives

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.

Who Should Attend?

Individuals who work with routers, switches, and firewalls that run Junos OS
Individuals who want to learn how to manage Junos OS using the CLI
Individuals who want to learn a basic understanding of IPv4, IPv6, routing, switching, troubleshooting, packet filtering, and Junos administration concepts

Top-rated instructors: Our crew of subject matter experts have an average instructor rating of 4.8 out of 5 across thousands of reviews.
Authorized content: We maintain more than 35 Authorized Training Partnerships with the top players in tech, ensuring your course materials contain the most relevant and up-to date information.
Interactive classroom participation: Our virtual training includes live lectures, demonstrations and virtual labs that allow you to participate in discussions with your instructor and fellow classmates to get real-time feedback.
Post Class Resources: Review your class content, catch up on any material you may have missed or perfect your new skills with access to resources after your course is complete.
Private Group Training: Let our world-class instructors deliver exclusive training courses just for your employees. Our private group training is designed to promote your team’s shared growth and skill development.
Tailored Training Solutions: Our subject matter experts can customize the class to specifically address the unique goals of your team.

Course Prerequisites

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.

Agenda

1. Introducing Junos OS and the Hardware It Powers

Test your knowledge of some networking fundamentals
Explain the advantages of Junos OS
Define the terms fixed-port chassis, modular chassis, and Routing Engine
Describe the advantages of Juniper Networks MX Series, PTX Series, and ACX Series routers, and SRX Series Firewalls

2. SSH and Operational Mode

Demonstrate how to use SSH to log in to a device running Junos OS
Explain the purpose of operational mode
Describe some of the most immediately useful show system commands
Demonstrate how to use built-in command reminders, auto-completion, and the Junos hierarchy
Lab 1: SSH and Operational Mode

3. Refresher—IPv6 Addressing

Demonstrate how to use hexadecimal to read IPv6 addresses, MAC addresses, and memory addresses
Explain the format of IPv6 addresses and subnet masks, and the purpose of link-local addressing

4. Network Interfaces, Part 1—Interface

Naming and Logical Units
Define the concepts of physical network interfaces, FPCs, and PICs
Demonstrate how the show interfaces terse command verifies logical interfaces, interface status, and IP addresses

5. Network Interfaces, Part 2—Revealing and Filtering Detailed Interface Output

Explain how to read the output of the full show interfaces command
Demonstrate how to use the CLI pipe to filter the output of any command
Lab 2: Network Interfaces and Logical Units

6. Reading a Junos OS Configuration

Explain the difference between viewing a Junos configuration in hierarchy view and in set view, and the advantages of each method
Demonstrate how to read a Junos OS router configuration in set view
Demonstrate how to read a Junos OS router configuration in hierarchy view
Lab 3: Reading a Junos OS Configuration

7. Configuring Junos OS—The Basics

Describe how the candidate configuration helps to prevent mistakes during configuration changes
Demonstrate how to commit changes, and how to roll back to previous configurations
Describe how to deploy, edit, and delete pieces of configuration
Explain how to use the commit confirmed feature
Lab 4: Configuring Junos OS—The Basics

8. Configuring Junos OS—Become a Power User

Explain how to lock the candidate configuration, and how to deactivate and disable pieces of configuration
Demonstrate how to deploy configuration within a specific part of the hierarchy
Explain how to rename and replace configuration
Describe the keyboard shortcuts that bring efficiency to your CLI session
Lab 5: Configuring Junos OS—Become a Power User

9. Routing Tables, Route Preference, and Longest Prefix Matches

Define the difference between directly connected, static, and dynamic routes
Explain how route preference selects the best route to a destination
Explain the process of longest prefix match lookups
Demonstrate how to view and verify the inet.0 and inet6.0 routing tables
Lab 6: Routes and Routing Tables

10. Static Routes

Explain the advantages and trade-offs of using static routes
Demonstrate how to configure and verify IPv4 and IPv6 static routes
Explain the purpose of a default route, and deploy one to enable Internet connectivity
Lab 7: Static Routes

11. Dynamic Routing Protocols—The Theory

Explain how routing protocols solve the problems of static routes
Describe the difference between interior and exterior gateway protocols, and the advantages of link-state protocols such as OSPF and IS-IS

12. Dynamic Routing Protocols—Configuring OSPF

Configure and verify a basic IPv4 OSPF deployment
Configure and verify a basic IPv6 OSPF deployment
Lab 8: Dynamic Routing Protocols

13. Junos OS Switches, Part 1—VLANs, MAC Tables, and Access Ports

Test your knowledge of some Layer 2 switching fundamentals
Demonstrate how to configure and verify VLANs on a switch running Junos OS
Describe how to configure access ports and verify MAC tables

14. Junos OS Switches, Part 2—Trunk Ports

Describe how to deploy trunk ports on Junos OS switches
Demonstrate how to configure multiple logical units on IP interfaces
Explain the advantages of Juniper Networks EX and QFX Series Switches, and the wireless, wired, and WAN solutions offered by Mist AI
Lab 9: IP Interfaces with Multiple Logical Units

15. Junos OS Device Administration

Explain the advantage of out-of-band management interfaces
Describe how to maintain accurate time on a Junos OS device
Explain the DNS resolution process, and how to enable DNS resolution
Describe how to create new user accounts for management
Demonstrate the features of the J-Web graphical interface

16. Setting Up a Brand-New Junos OS Device

Describe the variety of default configurations you will find on Junos OS devices
Explain how to use the console port, and the one piece of mandatory configuration on new devices
Demonstrate some recommended initial system settings
Explain the advantage of zero-touch provisioning
Lab 10: Junos OS Device Administration and Initial Settings

17. Junos OS Architecture—The Control Plane and the Data Plane

Define the control plane, the forwarding plane, and the Packet Forwarding Engine
Explain the difference between transit traffic and exception traffic

18. Junos OS Architecture—The Software That Powers Junos OS

Describe the modular nature of Junos OS daemons, and explain how Junos OS is based on FreeBSD
Explain the advantages offered by Junos OS Evolved

19. Logging, Troubleshooting, and Monitoring

Explain how to create log files
Demonstrate network connectivity troubleshooting commands
Describe how to view interface statistics, errors, and live control plane traffic
Demonstrate some helpful CLI management troubleshooting tricks
Lab 11: Logging, Troubleshooting, and Monitoring

20. Junos OS Firewall Filters, Part 1—The Theory

Test your knowledge on some important transport layer fundamentals
Define the difference between stateful security policies and stateless firewall filters
Describe how firewall filters use named terms to take action on packets, based on your match conditions
Demonstrate the logic involved in processing terms in a firewall filter

21. Junos OS Firewall Filters, Part 2—The Practical

Describe the configuration of a Junos OS firewall filter
Demonstrate how to use the insert command to change the order of terms in a firewall filter
Lab 12: Junos OS Firewall Filters

22. Junos OS Configuration—A Deeper Dive

Describe how to annotate, lock, and redact parts of the configuration
Explain how to create and manage files on your Junos device
Describe how to use load commands to quickly apply configuration in bulk
Demonstrate the ways that you can automate aspects of a Junos OS configuration
Lab 13: Junos OS Configuration—A Deeper Dive

23. Interfaces—A Deeper Dive

Describe the configuration of IRB and loopback interfaces
Explain how source IP addresses are selected from multiple options on an interface
Demonstrate the advantages of load balancing and of aggregated Ethernet interfaces
Lab 14: Interfaces—A Deeper Dive

24. Junos OS Architecture—APIs and Automation

Explain how Junos OS uses an XML API as an interface to the CLI and to a variety of automation options

25. Where Do You Go from Here?

Describe how to continue getting hands-on practice with Junos OS once the course is complete
Explain the Juniper Networks certification track
Explain some of the most popular Juniper Networks courses that you might choose to take next