Advanced Junos Enterprise Routing (TR-AJER)

Course Information

This four-day course is designed to provide students with the tools required for implementing, monitoring, and troubleshooting Layer 3 components in an enterprise network. Detailed coverage of OSPF, BGP, class of service (CoS), and multicast is strongly emphasized. The course also exposes students to common troubleshooting commands and tools used to troubleshoot various intermediate to advanced issues.

Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos operating system and in monitoring device and protocol operations.

This course uses Juniper Networks vSRX virtual firewall for the hands-on component, but the lab environment does not preclude the course from being applicable to other Juniper hardware platforms running the Junos OS. This course is based on Junos OS Release 15.1X49-D70.

Course Synopsis
Target Audience


After successfully completing this course, you should be able to:

  • Describe the various OSPF link-state advertisement (LSA) types.
  • Explain the flooding of LSAs in an OSPF network.
  • Describe the shortest-path-first (SPF) algorithm.
  • Describe OSPF area types and operations.
  • Configure various OSPF area types.
  • List useful common commands to troubleshoot and verify OSPF.
  • Isolate different OSPF issues.
  • Summarize and restrict routes.
  • Identify scenarios that require routing policy or specific configuration options.
  • Use routing policy and specific configuration options to implement solutions for various scenarios.
  • Describe basic BGP operation and common BGP attributes.
  • Explain the route selection process for BGP.
  • Describe how to alter the route selection process.
  • Configure some advanced options for BGP peers.
  • Describe various BGP attributes in detail and explain the operation of those attributes.
  • Manipulate BGP attributes using routing policy.
  • List common commands used to troubleshoot and verify BGP.
  • Isolate different issues with BGP communication and configuration.
  • Describe common routing policies used in the enterprise environment.
  • Explain how attribute modifications affect routing decisions.
  • Implement a routing policy for inbound and outbound traffic using BGP.
  • Isolate problems relating to routing policy structure and configuration.
  • Identify common commands for troubleshooting routing policy.
  • Identify environments that may require a modified CoS implementation.
  • Describe the various CoS components and their respective functions.
  • Explain the CoS processing along with CoS defaults on SRX Series Services Gateways.
  • Describe situations when some CoS features are used in the enterprise.
  • Implement some CoS features in an enterprise environment.
  • Verify and troubleshoot CoS.
  • Describe IP multicast traffic flow.
  • Identify the components of IP multicast.
  • Explain how IP multicast addressing works.
  • Describe the need for reverse path forwarding (RPF) in multicast.
  • Explain the role of Internet Group Management Protocol (IGMP) and describe the available IGMP versions.
  • Configure and monitor IGMP.
  • Identify common multicast routing protocols.
  • Describe rendezvous point (RP) discovery options.
  • Configure and monitor Physical Interface Module (PIM) sparse modes.
  • Configure and monitor RP discovery mechanisms.
  • Describe the basic requirements, benefits, and caveats of source-specific multicast
  • (SSM).
  • List the address ranges used for SSM.
  • Illustrate the role of Internet Group Management Protocol version 3 (IGMPv3) and PIM sparse mode (PIM-SM) in an SSM implementation.
  • Configure and monitor SSM.
  • Verify and troubleshoot multicast.
  • List command commands used to troubleshoot and verify IS-IS.
  • Isolate different IS-IS issues.

Course Synopsis

  • Day 1Chapter 1: Course IntroductionChapter 2: OSPF
    • OSPFv2 Review
    • Link-State Advertisements
    • Protocol Operations
    • OSPF Authentication
    • OSPFv3
    • Lab: Configuring and Monitoring OSPF

    Chapter 3: OSPF Areas

    • Review of OSPF Areas
    • Stub Area Operation
    • Stub Area Configuration
    • NSSA Operation
    • NSSA Configuration
    • Route Summarization
    • Lab: Configuring and Monitoring OSPF Areas and Route Summarization

    Chapter 4: OSPF Case Studies and Solutions

    • IGP Transition Overview
    • Transition Case Study
    • OSPF Multi-Area Adjacencies
    • External Reachability
    • Virtual Links
    • Lab: Configuring and Monitoring Routing Policy and Advanced OSPF Options

    Day 2

    Chapter 5: Troubleshooting OSPF

    • OSPF Troubleshooting
    • Lab: Troubleshooting OSPF

    Chapter 6: BGP

    • Review of BGP
    • BGP Operations
    • Load Balancing Options
    • Path Selection and Configuration Options
    • Lab: Implementing BGP

    Chapter 7: BGP Attributes and Policy

    • Policy and BGP
    • BGP Attributes
    • Details and Manipulation of Common BGP Path Attributes
    • Lab: BGP Attributes

    Chapter 8: Troubleshooting BGP

    • BGP Troubleshooting
    • BGP Case Study
    • Lab: Troubleshooting BGP

    Day 3

    Chapter 9: Enterprise Routing Policies

    • Enterprise BGP Core Network Design
    • Enterprise External Network Deployment
    • Lab: Implementing Enterprise Routing Policies

    Chapter 10: Troubleshooting Policies

    • Routing Policy Overview
    • Routing Policy Structure
    • Using Regex
    • Routing Policy Troubleshooting
    • Case Study
    • Lab: Troubleshooting Routing Policies

    Chapter 11: Introduction to Multicast

    • Overview of Multicast
    • Multicast Addressing
    • RPF
    • IGMP
    • Lab: PIM-SM

    Day 4

    Chapter 12: Multicast Routing Protocols and SSM

    • Overview of Multicast Routing Protocols
    • PIM-SM Using the ASM Model
    • Lab: Implementing PIM-SM
    • PIM-SM Using the SSM Model
    • Lab: Implementing SSM

    Chapter 13: Troubleshooting Multicast

    • Multicast Troubleshooting
    • Multicast Case Study
    • Lab: Troubleshooting Multicast

    Chapter 14: Class of Service

    • CoS Components Review and Case Study
    • CoS Processing and CoS Defaults on the SRX Series Device
    • Policing
    • Virtual Channels
    • Monitoring with Resource Performance Monitoring
    • Lab: Implementing CoS Features in the Enterprise

    Chapter 15: Troubleshooting Class of Service

    • CoS Troubleshooting
    • CoS Case Study
    • Lab: Troubleshooting Class of Service

    Appendix A: BGP Route Reflection

    • Route Reflection Operation
    • Configuration and Routing Knowledge
    • Lab: BGP Route Reflection (Optional)

    Appendix B: Troubleshooting IS-IS

    • IS-IS Troubleshooting
    • Troubleshooting IS-IS and Mixed Environments (Optional)

Target Audience

Network engineers, technical support personnel, reseller support engineers, and others responsible for implementing and/or maintaining the Juniper Networks products covered in this course.

This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.

Hands-On Labs

No lab information available.


Certification: TFS TC-AJER


Description Item Code Price
Advanced Juniper Enterprise Routing – Advanced Juniper Enterprise Routing (TR-AJER) is a three-day course designed to provide students with the tools required for implementing, monitoring, and troubleshooting Layer 3 components in an enterprise network. Detailed coverage of OSPF, BGP, class of service (CoS), and multicast is strongly emphasized. Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos operating system and in monitoring device and protocol operations. TR-AJER $3,800.00
Certificate: AJER- TFS – Identifies you as a technician who understands the basic concepts of fiber optics installation and service as they apply to all the functions required to safely and competently install fiber optics communications cabling.Item Type: JuniperTraining Certificates TC-AJER $150.00

Schedule & Registration

This course is available as open-enrollment Classroom event, instructor-led Live Virtual Class, REAL-ILT™ or as part of a custom Onsite Training for up to 16 students.

Call 877-529-9114 for Scheduling

Planning & Reservations

Contact the Training and Development Coordinator for The Fiber School at or call 877.529.9114.

Student Registration Use the Registration Form above or download the editable PDF and email to

>> Registration Form PDF:

Cancellation Policy: may cancel a course that lacks sufficient enrollment a week before it is scheduled to begin. When a course is canceled, we make every effort to notify all registered students promptly. A full refund is processed unless the student elects to transfer to another course or time. You can help avoid cancellation by registering early.

Student Cancellation: No refunds are permitted for student cancellation. Substitutions are permitted.

On-Site Training

With just 5 or more students The Fiber School can send the classroom to you! We offer custom, on-site training for any of our courses. Just give us a call at 877.529.9114 or email us at and let us schedule an on-site course that perfectly suits your needs.