This self-paced On-Demand eLearning course provides you with the foundational knowledge to configure, verify, and troubleshoot devices that run Junos OS. Students gain a wide variety of practical experience 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 switch ports, 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 gain experience in configuring and monitoring Junos OS and monitoring basic device operations. This course is based on Junos OS Release 22.1R1.10. This course includes audio and closed captioning in English, and AI-generated closed captioning for German, French, Portuguese, Spanish, Chinese and Japanese.Watch a Sneak Peek
Purchase Includes: 365 Days of Access
Certification Track: Enterprise Routing & Switching OR Service Provider Routing & Switching
Difficulty Level: Foundational
Additional Details
Course Modules
#ModuleDurationLabRequired
0
How to Use this On Demand Course

To launch the course, click the module titles below. Please be patient as the content downloads to your system. As you complete each module, close the module window and launch the next module from this page. You will need to launch all required modules for the course to be considered complete.

If the module has a lab component, you will have access to our virtual lab environment. In order to use the lab portion of the training you will need to enable your lab access. Click the "Enable Lab Access" button to enable your lab access and follow the instructions in the individual training modules to access the labs when instructed. If this is your first time using the On Demand lab environment, please Watch a Quick Lab Tutorial.

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If you have any technical problems with the course modules or the lab environment please open a ticket.

5m
1
Course Introduction
This module provides an overview of the content and the navigation to help you go through the material. It also tests your knowledge of prerequisite topics, to help you decide if you need to go through some of the Refresher modules.
7m
2
Introducing Junos OS and the Hardware It Powers
This module introduces Junos OS, its command-line interface, and the different ways to manage a Junos OS device. It also introduces some of the product sets of Juniper Networks, focusing on the most popular routers that run Junos OS.
48m
3
SSH and Operational Mode
This module describes the process of logging in to a Junos OS device and running a few commands.. It explains the purpose of operational mode, and some of the most helpful show system commands.

Lab 1: SSH and Operational Mode
1h 43m
4
Refresher - IPv6 Addressing
This module demonstrates how to read IPv6 addresses, MAC addresses, and memory addresses using the hexadecimal notation. It also explains the format of IPv6 addresses and subnet masks, and the purpose of link-local addressing.
32m
5
Network Interfaces, Part 1 - Interface Naming and Logical Units
This module defines the concepts of physical network interfaces, FPCs, and PICs. It demonstrates how the show interfaces terse command verifies logical interfaces, interface status, and IP addresses.
49m
6
Network Interfaces, Part 2 - Revealing and Filtering Detailed Interface Output
This module explains how to read the output of the full show interfaces command and demonstrates how to use the CLI pipe to filter the output of any command.

Lab 2: Network Interfaces and Logical Units
1h 18m
7
Reading a Junos OS Configuration
This module covers the different ways to read a Junos OS configuration. It explains the difference between viewing a Junos configuration in hierarchy view and in set view, and it describes the advantages of each method.

Lab 3: Reading a Junos OS Configuration
2h
8
IJOS Activity 01
This activity reviews concepts from modules 2 through 7
10m
9
Configuring Junos OS - The Basics
This module describes how you edit, delete, and deploy pieces of a configuration and how you use a candidate configuration. This module also covers how to commit and roll-back changes to the configuration.

Lab 4: Configuring Junos OS - The Basics
2h 22m
10
Configuring Junos OS - Become a Power User
This module covers useful configuration tips and tricks for configuring a Junos OS device.

Lab 5: Configuring Junos OS - Become a Power User
1h 42m
11
Routing Tables, Route Preference, and Longest Prefix Matches
This module defines the difference between directly connected, static, and dynamic routes, and it describes how route preference selects the best route to a destination. It explains the process of longest prefix match lookups and demonstrates how to view and verify the inet.0 and inet6.0 routing tables.

Lab 6: Routes and Routing Tables
1h 33m
12
Static Routes
This module explains the advantages and trade-offs of static routes. It demonstrates how to configure and verify IPv4 and IPv6 static routes. This module describes the purpose of a default route, and how to deploy one to enable Internet connectivity.

Lab 7: Static Routes
1h 22m
13
Dynamic Routing Protocols - The Theory
This module explains how routing protocols solve the problems of static routes. It describes the difference between interior gateway protocols and exterior gateway protocols, and it highlights the advantages of link-state protocols such as OSPF and IS-IS.
34m
14
Dynamic Routing Protocols-Configuring OSPF
This module explains how to configure and verify a basic IPv4 and IPv6 OSPF deployment.

Lab 8: Dynamic Routing Protocols
1h 12m
15
IJOS Activity 02
This activity reviews concepts from the previous modules.
10m
16
Junos OS Switches, Part 1 - VLANs, MAC Tables, and Access Ports
This module demonstrates how to configure and verify VLANs on a switch running Junos OS. It then describes how to configure access ports and verify MAC tables.
34m
17
Junos OS Switches, Part 2 - Trunk Ports
This module describes how to deploy trunk ports on Junos OS switches and configure multiple logical units on IP interfaces. It explains the advantages of Juniper Networks EX and QFX Series Switches, and wireless, wired, and WAN solutions offered by Mist AI.

Lab 9: IP Interfaces with Multiple Logical Units
48m
18
Junos OS Device Administration
It describes how to maintain accurate time on a Junos OS device, the DNS resolution process, and how to enable DNS. It describes how to create new user accounts for management and also demonstrates some of the features of the J-Web graphical interface.
58m
19
Setting Up a Brand - New Junos OS Device
This module describes the variety of default configurations you will find on Junos OS devices. It explains how to use the console port and the one mandatory configuration required on a new device. It offers some recommended initial system settings and explains the advantage of zero-touch provisioning.

Lab 10: Junos OS Device Administration and Initial Settings
1h 35m
20
Junos OS Architecture - The Control Plane and the Data Plane
This module defines the control plane, the forwarding plane, and the Packet Forwarding Engine, and how they work together to support Junos OS operations. It explains the difference between transit traffic and exception traffic, and how Junos handles both types of traffic.
41m
21
Junos OS Architecture - The Software That Powers Junos OS
This module describes the modular nature of Junos OS daemons and it explains how Junos OS is based on FreeBSD. This module explains the advantages that Junos OS Evolved offers.
24m
22
Logging, Troubleshooting, and Monitoring
This module describes a wide range of topics useful in day-to-day network operations. It explains how to create log files, and it demonstrates network connectivity troubleshooting commands. It describes how to view interface statistics, errors, and live control plane traffic, and shows some helpful CLI management troubleshooting tricks.

Lab 11: Logging, Troubleshooting, and Monitoring
2h 1m
23
IJOS Activity 03
This activity reviews concepts from the previous modules.
10m
24
Junos OS Firewall Filters, Part 1 - The Theory
This module defines the difference between stateful security policies and stateless firewall filters. It describes how firewall filters use named terms to take action on packets based on your match conditions and demonstrates the logic involved in processing terms in a firewall filter.
2h 1m
25
Junos OS Firewall Filters, Part 2 - The Practical
This module describes the configuration of a Junos OS firewall filter and demonstrates how to use the insert command to change the order of terms in a firewall filter.

Lab 12: Junos OS Firewall Filters
36m
26
Junos OS Configuration - A Deeper Dive
This module covers some advanced configuration tips and tricks. This module describes how to annotate, lock, and redact parts of the configuration. It explains how to create and manage files on your Junos device. It describes how to use load commands to apply configuration in bulk quickly and demonstrates the ways that you can automate aspects of a Junos OS configuration.

Lab 13: Junos OS Configuration - A Deeper Dive
1h 45m
27
Interfaces - A Deeper Dive
This module provides an insight into some more advanced interface configuration options. It describes IRB and loopback interfaces, and how to configure them on a Junos OS device. It explains how source IP addresses are selected from multiple options on an interface. Finally, this module demonstrates the advantages of load balancing and aggregated Ethernet interfaces.

Lab 14: Interfaces - A Deeper Dive
2h 4m
28
Junos OS Architecture - APIs and Automation
This module explains how Junos OS uses an XML API as an interface to the CLI and various automation options.
14m
29
Where Do You Go from Here?
This module describes how to continue getting hands-on practice with Junos OS once the course is complete. It also explains the Juniper Networks certification track.
20m
30
IJOS Activity 04
This activity reviews concepts from the previous modules.
10m
31
Routing - A Deeper Dive
This module covers some more advanced routing concepts. It demonstrates various advanced static route features. It shows the functionality and configuration of routing instances, and explores protocol topics such as the advantages of OSPF areas, IS-IS levels, and BGP as an exterior gateway protocol.
50m
32
Junos OS Firewall Filters-A Deeper Dive
This module demonstrates advanced firewall filter match conditions and actions. It explains the benefits of control plane firewall filter protection. It describes how policers can rate-limit any traffic of your choosing, and demonstrates advanced CLI troubleshooting commands and filtering tools
1h 20m
33
Logging, Troubleshooting, and Monitoring-A Deeper Dive
This module explains how monitoring systems interact with a device using SNMP. It shows how traceoptions offers advanced troubleshooting visibility of problems. It describes the error information available in the show interfaces extensive command. It describes advanced CLI troubleshooting commands and filtering tools.
1h
34
Junos OS Device Administration - A Deeper Dive
This module explains the meaning of AAA and demonstrates how to enable RADIUS and TACACS+ authentication. It describes the order in which user authentication methods are checked, and explains how to customize user accounts.
40m
35
Junos OS Routing Policy
This module explains how import and export policies can readvertise prefixes between protocols. It describes the CLI syntax of a routing policy, and it demonstrates how a routing policy can export static routes into OSPF. This module describes some important advanced routing policy features and behaviors.
1h 10m
36
Upgrading Junos OS
This module covers the procedure used to upgrade a Junos OS device. It describes how to complete the tasks involved in preparing for an upgrade, along with the Junos OS upgrade procedure and upgrade customization options.
45m
37
J-Web
This module teaches you how to navigate and use J-Web for basic configuration and monitoring tasks. It demonstrates how to configure and monitor a network interface in J-Web and how to use the Feature Explorer to find out if a device supports J-Web.
1h
38
Refresher - Cables and Ethernet
This module explains the difference between copper and fiber-optic networking cables and describes how Ethernet uses MAC addresses.
40m
39
Refresher - IPv4 and Subnetting
This module covers some of the prerequisite routing and IPv4 concepts. It describes the format of IPv4 addresses, and explains how to create a subnet. This module also explains the role of a router is in a network.
30m
40
Refresher - Switches, MAC Learning, Broadcast Domains, and VLANs
This module covers prerequisite switching concepts. It explains the difference between Layer 2 and Layer 3 switches, describes how switches and hosts learn MAC addresses, and defines VLANs and broadcast domains.
30m
41
Refresher - TCP and UDP
This module explains the difference between reliable and best-effort data transmission, and the role of source and destination port numbers in this transmission.
25m
This course is valid towards:
  • Taking Exam or Renewing Junos, Associate (JNCIA-Junos)
    • Learn more about certification renewal through course attendance.
    $4,000 USD