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 andfeatures.
• 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.

DAY 1

Course Introduction

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 ofany 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

DAY 2

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

DAY 3

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

DAY 4

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

SELF-STUDY MODULES

26. Routing—A Deeper Dive

• Demonstrate a variety of advanced static route features
• Demonstrate the functionality and configuration of routing instances
• Describe the advantages of OSPF areas, IS-IS levels, and BGP as an exterior gateway protocol

27. Junos OS Firewall Filters—A Deeper Dive

• Demonstrate some advanced firewall filter match conditions and actions
• Explain the benefits of control plane firewall filter protection
• Describe how policers can rate-limit any traffic of your choosing
• Demonstrate some firewall filter caveats and potential best practices

28. Logging, Troubleshooting, and Monitoring—A Deeper Dive

• Demonstrate how monitoring systems use SNMP to interact with a device
• Explain how traceoptions offer advanced troubleshooting visibility of any problem
• Describe the error information available in the show interfaces extensive command
• Demonstrate some advanced CLI troubleshooting commands and filtering tools

29. Junos OS Device Administration—A Deeper Dive

• Explain the meaning of AAA, and demonstrate how to enable RADIUS and TACACS+ authentication
• Describe the order in which user authentication methods are checked
• Explain how to customize user accounts with custom permission classes and custom idle timeouts 30 Junos OS Routing Policy
• Explain how import and export policies can readvertise prefixes between protocols
• Describe the CLI syntax of a routing policy
• Demonstrate how a routing policy can export static routes into OSPF
• Describe some important advanced routing policy features and behaviors

• 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

• 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.