Introduction to the Junos Operating System (IJOS)
Course overview
This 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.
Course Duration
3 Days
Cost
Audience
This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.
Prerequisites
Students should have basic networking knowledge and an understanding of the Open Systems Interconnection (OSI) reference model and the TCP/IP protocol suite.
Course Content
Day 1
Course Introduction
Junos Operating System Fundamentals
- The Junos OS
- Traffic Processing
- Platforms Running the Junos OS
User Interface Options
- User Interface Options
- The Junos CLI: CLI Basics
- The Junos CLI: Operational Mode
- The Junos CLI: Configuration Mode
Initial Configuration
- Factory-Default Configuration
- Initial Configuration
- Interface Configuration
Secondary System Configuration
- User Configuration and Authentication
- System Logging and Tracing
- Network Time Protocol
- Archiving Configurations
- SNMP
Day 2
Operational Monitoring and Maintenance
- Monitoring Platform and Interface Operation
- Network Utilities
- Maintaining the Junos OS
- Password Recovery
- System Clean-up
Interface Configuration Examples
- Review of the Interface Configuration Hierarchy
- Interface Configuration Examples
- Using Configuration Groups
The J-Web Interface
- The J-Web GUI
- Configuration
Routing Fundamentals
- Routing Concepts: Overview of Routing
- Routing Concepts: The Routing Table
- Routing Concepts: Routing Instances
- Static Routing
- Dynamic Routing
Day 3
Routing Policy
- Routing Policy Overview
- Case Study: Routing Policy
Firewall Filters
- Firewall Filters Overview
- Case Study: Firewall Filters
- Unicast Reverse-Path-Forwarding Checks
Class of Service
- CoS Overview
- Traffic Classification
- Traffic Queueing
- Traffic Scheduling
- Case Study: CoS