Juniper Network Course

Junos Layer 3 VPNs



This 3-day course is designed to provide students with MPLS-based Layer 3 virtual private network (VPN) knowledge and configuration examples. The course includes an overview of MPLS Layer 3 VPN concepts, scaling Layer 3 VPNs, Internet access, Interprovider L3VPNs, and Multicast for Layer 3 VPNs. This course also covers Junos operating system-specific implementations of Layer 3 VPNs. This course is based on the Junos OS Release 15.1R2.9.



Available Certifications

Students must pass exam to be certified.

TFS JL3V Certification $150

Call 877.529.9114



Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the Junos OS and in device operations.
After successfully completing this course, you should be able to:

  • Describe the value of MPLS VPNs.
  • Describe the differences between provider-provisioned VPNs and customer-provisioned VPNs.
  • Describe the differences between Layer 2 VPNs and Layer 3 VPNs.
  • List the provider-provisioned MPLS VPN features supported by the JUNOS software.
  • Describe the roles of a CE device, PE router, and P router in a BGP Layer 3 VPN.
  • Describe the format of the BGP routing information, including VPN-IPv4 addresses and route distinguishers.
  • Describe the propagation of VPN routing information within an AS.
  • List the BGP design constraints to enable Layer 3 VPNs within a provider network.
  • Explain the operation of the Layer 3 VPN data plane within a provider network.
  • Create a routing instance, assign interfaces to a routing instance, create routes in a routing instance, and import/export routes from a routing instance using route distinguishers/route targets.


  • Introduction to Junos Layer 3 VPNs
  • MPLS VPNs, Provider-Provisioned VPNs
  • Layer 3 VPNs: Layer 3 VPN Terminology, VPN-IPv4 Address Structure, Operational Characteristics
  • Basic Layer 3 VPN Configuration: Preliminary Steps, PE Router Configuration
  • Layer 3 VPN Scaling and Internet Access: Scaling Layer 3 VPNs, Public Internet Access Options
  • Layer 3 VPNs – Advanced Topics: Exchanging Routes between Routing Instances, Hub-and-Spoke Topologies, Layer 3 VPN CoS Options, Layer 3 VPN and GRE Tunneling Integration, Layer
    3 VPN and IPSec Integration, Layer 3 VPN Egress Protection, BGP prefix-independent convergence (PIC) edge for MPLS VPNs, VRF Localization, Provider Edge Link Protection, Support for configuring more than 3 million L3VPN Labels
  • Interprovider Backbones for Layer 3 VPNs: Hierarchical VPN Models, Carrier-of-Carriers Model, Option C Configuration
  • Troubleshooting Layer 3 VPNs: Working with Multiple Layers, Troubleshooting Commands on a PE Device, Multiaccess Interfaces in Layer 3 VPNs, PE and CE-based Traceroutes, Layer 3 VPN Monitoring Commands
  • Draft Rosen Multicast VPNs: Overview, Draft Rosen MVPN Overview, Draft Rosen MVPN Operation, Configuration, Monitoring
  • Next Generation Multicast VPNs: Multicast VPN Overview, Next-Generation MVPN Operation, Configuration, Monitoring, Internet Multicast, Ingress Replication, Internet Multicast Signaling and Data Plane, Configuring MVPN Internet Multicast, Monitoring MVPN Internet Multicast


There are no labs associated with this course.

Prerequisites: Level 2

Students should have basic networking knowledge and an understanding of the Open Systems Interconnection (OSI) reference 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.

Target Audience

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


Call 877.529.9114 for scheduling information.


Remember, if you have 5 or more students, we can bring our class to you at your own facility – saving you time and money!

Customized Training

Any of our courses can be customized to focus on your needs – like using specific equipment, or working in a particular situation.

Cancellation Policy

We reserve the right to cancel any course. A full refund will be provided unless the student elects to transfer to another course or time.

No refunds will be granted for student cancellation, but substitutions are permitted.