You are previewing Junos® OS For Dummies®, 2nd Edition.
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Junos® OS For Dummies®, 2nd Edition

Book Description

Learn to use JUNOS to make your network reliable!

Providing network administrators with a reliable network operating system, JUNOS software is an award-winning network operating system that focuses on security and the avoidance of down time. This easy-to-understand book starts with the basics of JUNOS and walks you through its features so that you can quickly learn how to set up, operate, and add key services.

Since the various JUNOS features are constantly being updated to provide your network with the best security possible, this new edition shares must-know information, helpful advice, handy tips, and essential cautions for working with JUNOS. Plus, you'll find out how to set up a routing protocol that automates configuration of routing tables for greater efficiency and how you can set up individual or group user accounts locally on the route, or on remote centralized authentication servers.

  • Starts with the basics and introduces you to JUNOS

  • Explains how to connect, manage, and troubleshoot routers and other Juniper appliances

  • Offers tips for making your network more efficient and reveals essential cautions

  • Walks you through setting up, operating, and adding key services

  • Details ways to configure JUNOS default security features as well as restricted physical access to protect routers

  • Breaks down advanced concepts into easy-to-understand segments so you can build your knowledge gradually

This new edition gets you started using the sophisticated features and techniques of JUNOS today.

Table of Contents

  1. Cover Page
  2. Title Page
  3. Copyright
  4. About the Authors
  5. Dedication
  6. Authors' Acknowledgments
  7. Publisher's Acknowledgments
  8. Contents at a Glance
  9. Table of Contents
  10. Introduction
    1. About This Book
    2. Conventions Used in This Book
    3. Foolish Assumptions
    4. How This Book Is Organized
    5. Icons Used in the Book
    6. Where to Go from Here
  11. Part I: Discovering Junos OS
    1. Chapter 1: Junos Is Everywhere You Need to Be
      1. Functions of a Network OS
      2. Taking Advantage of One Network OS
      3. Taking a Peek Inside the Junos OS
      4. Developing Junos OS
      5. Beyond the OS
    2. Chapter 2: Jumping Into Junos
      1. Jumpstart Instructions
      2. Command-Line Essentials
      3. Defining How You Want Devices to Work
      4. Going Back to a Prior Configuration
      5. This Way to the Exit
    3. Chapter 3: Operating Your Network with Junos
      1. Exploring Operational Mode
      2. Displaying Output
      3. Using Onboard Instrumentation Tools
      4. Exploring Junos Space
      5. Using the System Software
    4. Chapter 4: Migrating to Junos
      1. Collapsing Switching Layers
      2. Scaling the Access Switching Layer
      3. Speeding Up the Data Center Network
      4. Securing the Infrastructure
      5. About the Devices Running Junos
  12. Part II: Setting Up Junos OS
    1. Chapter 5: Configuring the Device with the CLI and J-Web
      1. Installing the Hardware and Software
      2. Connecting to the Junos OS
      3. Configuring Junos OS Devices with the CLI
      4. Displaying set Commands
      5. Making Changes to the Junos OS Configuration … Faster
      6. Archiving Configurations
      7. Configuring Junos OS Devices with J-Web
    2. Chapter 6: Setting Up Junos Devices
      1. Understanding the Initial Configuration
      2. Setting Up System Options
      3. Configuring User Accounts
      4. Configuring the Management and Loopback Interfaces
      5. Configuring Network Interfaces
      6. Configuring Other Options
      7. Logging Out
    3. Chapter 7: Managing Your Network with Junos OS
      1. Choosing a Management Interface
      2. Setting Up Out-of-Band Management
      3. Setting Up In-Band Management
      4. Accessing the Device
      5. Managing Devices with Simple Network Management Protocol
      6. Monitoring a Device with System Logging
      7. Monitoring a Device Using Trace Logging
    4. Chapter 8: Monitoring Junos
      1. Checking Host-to-Host
      2. Tracerouting the Network
      3. Using Diagnostic Commands
      4. Keeping an Eye on Latency
    5. Chapter 9: Securing Your Junos OS Devices
      1. Stop! Physical Security
      2. Go! Junos Default Security Features
      3. Checking Who's on the Router
      4. Logging Out
      5. Controlling SSH and Telnet Access to the Router
      6. Limiting Traffic on Router Interfaces
      7. Protecting the Routing Engine: A More Complete Strategy
      8. Securing Routing Protocols
  13. Part III: Deploying a Device
    1. Chapter 10: Deploying a Router
      1. Understanding Network Routing
      2. Routing, Bridging, and Switching
      3. Running RIPv2
      4. Running OSPF
      5. Running IS-IS
    2. Chapter 11: Deploying an EX Switch
      1. Ethernet, VLANs, and Juniper EX-Series Switches
      2. Setting Up the Switch
      3. Segmenting a LAN with VLANs
      4. Interconnecting Switches with Virtual Chassis
      5. Using the Switch as a Router
    3. Chapter 12: Deploying Security with the SRX
      1. Setting Up the SRX
      2. Understanding Flow Processing
      3. Managing the System
      4. Writing Basic Security Policies
      5. Configuring NAT Source Address Translation
  14. Part IV: Running a Junos Network
    1. Chapter 13: Working with Border Gateway Control
      1. An Island of Their Own: Autonomous Systems
      2. Making AS Connections
      3. Configuring BGP
      4. Monitoring BGP
      5. Configuring Route Reflection
    2. Chapter 14: Working with Router Policies
      1. Constructing Routing Policies
      2. Configuring Route Filters
      3. Configuring an Aggregate Route
    3. Chapter 15: Enabling Class of Service
      1. Knowing What Pieces a COS Configuration Requires
      2. Classifying Inbound Traffic
      3. Controlling Outbound Traffic
      4. Massaging BA Classifiers for Core Transit
    4. Chapter 16: Using Multi-Protocol Level Switching
      1. Packet-Switched Networking
      2. Establishing Label-Switched Paths
      3. Signaling Protocols
      4. Configuring RSVP-Signaled LSPs
      5. Placing Constraints on Packet Forwarding
    5. Chapter 17: Operating and Troubleshooting Your Network
      1. Identifying the Cause of Problems
      2. Implementing Controlled Change
      3. Understanding Traffic Engineering
      4. Troubleshooting Your Network
  15. Part V: The Part of Tens
    1. Chapter 18: Ten Most Used Junos Commands
      1. Show Me the Version and Version Detail
      2. Show Me the Chassis Hardware and Chassis Hardware Detail
      3. Show Me and Confirm My Configuration
      4. Back Up and Roll Back My Configurations
      5. Show Me the Interfaces in the Device
      6. Give Me More Detail About the Interfaces
      7. Show Me Something About Routing
      8. Give Me More Detail About Routing
      9. Show Me Something About Switching
      10. Show Me Details for Maintenance
    2. Chapter 19: Ten Migration Tools
      1. Junosphere Labs
      2. Juniper Documents
      3. Juniper Networks Books
      4. Translators
      5. Installation Guides and Training
      6. J-Web
      7. Junos Space Applications
      8. Custom Commands
      9. Professional Services
    3. Chapter 20: Ten Help Resources
      1. Using the Command-Line Interface Help Commands
      2. Using Juniper Networks Technical Publications
      3. Joining J-Net Forums
      4. Finding Videos and Webcasts
      5. Finding Books
      6. Using the Knowledge Base
      7. Taking Certification Courses
      8. Getting Support
      9. Contacting Customer Care
      10. Contacting JTAC
  16. Index