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Junos Intermediate Routing (JIR)

Course Overview

This two-day course provides students with intermediate routing knowledge and configuration examples. The course includes an overview of protocol-independent routing features, load balancing and filter-based forwarding, OSPF, BGP, IP tunneling, and high availability (HA) features. Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos OS and monitoring device operations. This course uses Juniper Networks vSRX Series Services Gateways 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-D70.3.


Course Level

Junos Intermediate Routing is an intermediate-level course.


Intended Audience

The primary audiences for this course are the following:

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



The following are the prerequisites for this course:


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


Students should also attend the Introduction to the Junos Operating System (IJOS) course prior to attending this class.



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

• Describe typical uses of static, aggregate, and generated routes.

• Configure and monitor static, aggregate, and generated routes.

• Explain the purpose of Martian routes and add new entries to the default list.

• Describe typical uses of routing instances.

• Configure and share routes between routing instances.

• Describe load-balancing concepts and operations.

• Implement and monitor Layer 3 load balancing.

• Illustrate benefits of filter-based forwarding.

• Configure and monitor filter-based forwarding.

• Explain the operations of OSPF.

• Describe the role of the designated router.

• List and describe OSPF area types.

• Configure, monitor, and troubleshoot OSPF.

• Describe BGP and its basic operations.

• Name and describe common BGP attributes.

• List the steps in the BGP route selection algorithm.

• Describe BGP peering options and the default route advertisement rules.

• Configure and monitor BGP.

• Describe IP tunneling concepts and applications.

• Explain the basic operations of generic routing encapsulation (GRE) and IP over IP (IP-IP) tunnels.

• Configure and monitor GRE and IP-IP tunnels.

• Describe various high availability features supported by the Junos OS.

• Configure and monitor some of the highlighted high availability features.




Day 1

Chapter 1: Course Introduction

Chapter 2: Protocol-Independent Routing

  • Static Routes
  • Aggregated Routes
  • Generated Routes
  • Martian Addresses
  • Routing Instances
  • Lab 1: Protocol-Independent Routing

Chapter 3: Load Balancing and Filter-Based Forwarding

  • Overview of Load Balancing
  • Configuring and Monitoring Load Balancing
  • Overview of Filter-Based Forwarding
  • Configuring and Monitoring Filter-Based Forwarding
  • Lab 2: Load Balancing and Filter-Based Forwarding

Chapter 4: Open Shortest Path First

  • Overview of OSPF
  • Adjacency Formation and the Designated Router Election
  • OSPF Scalability
  • Configuring and Monitoring OSPF
  • Basic OSPF Troubleshooting
  • Lab 3: Open Shortest Path First


Day 2

Chapter 5: Border Gateway Protocol

  • Overview of BGP
  • BGP Attributes
  • IBGP Versus EBGP
  • Configuring and Monitoring BGP

Lab 4: Border Gateway Protocol

Chapter 6: IP Tunneling

  • Overview of IP Tunneling
  • GRE and IP-IP Tunnels
  • Implementing GRE and IP-IP Tunnels

Lab 5: IP Tunneling

Chapter 7: High Availability

  • Overview of High Availability Networks
  • Graceful Restart
  • Graceful RE Switchover
  • Nonstop Active Routing
  • BFD
  • VRRP
  • Lab 6: High Availability

Appendix A: IPv6

  • Introduction to IPv6
  • Routing Protocol Configuration Examples
  • Tunneling IPv6 over IPv4
  • Lab 7 (Optional): IPv6

Appendix B: IS-IS

  • Overview of IS-IS
  • Overview of IS-IS PDUs
  • Adjacency Formation and DIS Election
  • Configuring and Monitoring IS-IS
  • Basic IS-IS Troubleshooting
  • Lab 8 (Optional): IS-IS

Appendix C: Routing Information Protocol

  • Introduction to RIP
  • RIP Configuration Examples
  • Monitoring and Troubleshooting RIP

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