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IJOS - Juniper Introduction to the Junos Operating System (IJOS)

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Juniper has included the previous JRE Course Content and kept the name ’IJOS’, so what used to be run as a JNCIA Bootcamp (IJOS+JRE) is now simply this course, IJOS.

This three-day 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. This course is based on Junos OS Release 15.1X49.

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Prerequisites


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

Detailed Class Syllabus


Chapter 1: Course Introduction


Chapter 1: Course Introduction

Chapter 2: Junos Operating System Fundamentals


The Junos OS
Traffic Processing
Overview of Junos Devices

Chapter 3: User Interface Options


User Interface Options
The Junos CLI: CLI Basics
The Junos CLI: Operational Mode
The Junos CLI: Configuration Mode
Lab 1: The Junos CLI

Chapter 4: Initial Configuration


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

5: Secondary System Configuration


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

Chapter 6: 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 7: Interface Configuration Examples


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

Chapter 8: The J-Web Interface


The J-Web GUI
Configuration
Lab 5: The J-Web Interface

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