Juniper Course

course overview

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This three-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 Layer 3 VPNs, and Multicast for Layer 3 VPNs. 

This course also covers Junos operating system-specific implementations of Layer 3 VPNs. 

These concepts are put into practice with a series of in-depth hands-on labs, which will allow participants to gain experience in configuring and monitoring Layer 3 VPNs on Junos OS devices. 

These hands-on labs utilize Juniper Networks vMX Series devices using the Junos OS Release 19.4R1.10, and are also applicable to other MX Series devices.

The Junos Layer 3 VPNs (JL3V) course is an advanced-level course.

Relevant Juniper Product

• Routing • Junos OS • M Series • T Series • MX Series • PTX Series • Service Provider Routing and Switching Track


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

Skills Gained

• Describe the value of MPLS VPNs.

• Describe the differences between provider-provisioned VPNs and customerprovisioned VPNs.

• Describe the differences between Layer 2 VPNs and Layer 3 VPNs.

• List the provider-provisioned MPLS VPN features supported by the Junos OS 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.

• Describe the purpose of BGP extended communities, configure extended BGP extended communities, and use BGP extended communities.

• List the steps necessary for proper operation of a PE-CE dynamic routing protocol.

• List the troubleshooting and monitoring techniques for routing instances.

• Explain the difference between the bgp.l3vpn table and the inet.0 table of a routing instance.

• Monitor the operation of a CE-PE dynamic routing protocol.

• Explain the operation of a PE multi-access interface in a Layer 3 VPN and list commands to modify that behavior.

• Describe ways to support communication between sites attached to a common PE router.

• Provision and troubleshoot hub-and-spoke Layer 3 VPNs,

• Describe the flow of control traffic and data traffic in a hub-and-spoke Layer 3 VPN.

• Describe QoS mechanisms available in L3VPNs.

• Configure L3VPN over GRE tunnels.

• Describe the RFC 4364 VPN options.

• Describe the carrier-of-carriers model.

• Configure the carrier-of-carriers and "Option C" configuration.

• Describe the flow of control and data traffic in a draft-rosen multicast VPN.

• Describe the configuration steps for establishing a draft-rosen multicast VPN.

• Monitor and verify the operation of draft-rosen multicast VPNs.

• Describe the flow of control traffic and data traffic in a next-generation multicast VPN.

• Describe the configuration steps for establishing a next-generation multicast VPN.

• Monitor and verify the operation of next-generation multicast VPNs.

• Describe the flow of control traffic and data traffic when using MPVNs for Internet multicast.

• Describe the configuration steps for enabling internet multicast using MVPNs.

• Monitor and verify the operation of MVPN internet multicast.


• Intermediate-level networking knowledge and an understanding of OSPF, ISIS, BGP, and Junos policy

• Experience configuring MPLS label-switched paths using Junos

• Attend the Introduction to the Junos Operating System (IJOS), Junos Intermediate Routing (JIR), and Junos MPLS Fundamentals (JMF) courses prior to attending this class


What is Juniper? Suppliers of high performance, secure and reliable IP networks and products, Juniper Networks provides small, medium and large enterprises with a complete array of networking solutions, from devices to data centres and from consumers to cloud providers.

Running from a single operating (OS) system - JUNOS, Juniper's main products include the Juniper M-Series, Juniper T- Series, Juniper E-Series, Juniper J-Series, Juniper NetScreen, Ethernet Routers, Ethernet switches and firewall security which includes the award winning IDP Series Intrusion Detection and Prevention Appliances.

Juniper currently have 4 main certification tracks: Juniper Networks Certified Internet Expert (JNCIE), Juniper Neworks Certified Internet Professional (JNCIP), Juniper Networks Certified Internet Specialist (JNCIS) and Juniper Networks Certified Internet Associate (JNCIA) and some non-Junos certifications; E Series, Firewall/VPN, SSL, Intrusion Detection and Prevention (IDP), WX Series, Unified Access Control (UAC).

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If you need training for 3 or more people, you should ask us about onsite training. Putting aside the obvious location benefit, content can be customised to better meet your business objectives and more can be covered than in a public classroom. Its a cost effective option. One on one training can be delivered too, at reasonable rates.

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All $ prices are in USD unless it’s a NZ or AU date

SPVC = Self Paced Virtual Class

LVC = Live Virtual Class

Please Note: All courses are availaible as Live Virtual Classes

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