"Charting the Course ...
... to Your Success!"
Junos Layer 3 VPNs (JL3V)
Course Summary
Description
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 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. Through demonstrations and hands-on labs, students will gain experience in
configuring and monitoring the Junos OS and in device operations.
Objectives
By the end of this course, students will 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 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.
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.
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.
Due to the nature of this material, this document refers to numerous hardware and software products by their trade names. References to other companies and their products are for
informational purposes only, and all trademarks are the properties of their respective companies. It is not the intent of ProTech Professional Technical Services, Inc. to use any of these
names generically
"Charting the Course ...
... to Your Success!"
Junos Layer 3 VPNs (JL3V)
Course Summary (cont’d)
Topics
Course Introduction Layer 3 VPNs - Advanced Topics
MPLS VPNs Interprovider Backbones for Layer 3 VPNs
Layer 3 VPNs Troubleshooting Layer 3 VPNs
Basic Layer 3 VPN Configuration Draft Rosen Multicast VPNs
Layer 3 VPN Scaling and Internet Access Next Generation Multicast VPNs
Audience
This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.
Prerequisites
Students should have intermediate-level networking knowledge and an understanding of OSPF, ISIS, BGP,
and Junos policy. Students should have experience configuring MPLS label-switched paths using Junos.
Students should also attend the Introduction to the Junos Operating System (IJOS), Junos Routing Essentials
(JRE), Junos Intermediate Routing (JIR) and the Junos MPLS Fundamentals (JMF) courses prior to attending
this class.
Duration
Three days
Due to the nature of this material, this document refers to numerous hardware and software products by their trade names. References to other companies and their products are for
informational purposes only, and all trademarks are the properties of their respective companies. It is not the intent of ProTech Professional Technical Services, Inc. to use any of these
names generically
"Charting the Course ...
... to Your Success!"
Junos Layer 3 VPNs (JL3V)
Course Outline
I. Course Introduction VIII. Troubleshooting Layer 3 VPNs
A. Working with Multiple Layers
II. MPLS VPNs B. Troubleshooting Commands on a PE
A. MPLS VPNs Device
B. Provider-Provisioned VPNs C. Multi-Access Interfaces in Layer 3 VPNs
D. PE and CE-based Traceroutes
III. Layer 3 VPNs E. Layer 3 VPN Monitoring Commands
A. Layer 3 VPN Terminology Lab: Troubleshooting Layer 3 VPNs
B. VPN-IPv4 Address Structure
C. Operational Characteristics IX. Draft Rosen Multicast VPNs
A. Multicast Overview
IV. Basic Layer 3 VPN Configuration B. Draft Rosen MVPN Overview
A. Preliminary Steps C. Draft Rosen MVPN Operation
B. PE Router Configuration D. Configuration
Lab: Layer 3 VPN with Static and BGP E. Monitoring
Routing
X. Next Generation Multicast VPNs
V. Layer 3 VPN Scaling and Internet Access A. Multicast VPN Overview
A. Scaling Layer 3 VPNs B. Next-Generation MVPN Operation
B. Public Internet Access Options C. Configuration
Lab: LDP over RSVP Tunnels and Public D. Monitoring
Internet Access E. Internet Multicast
F. Ingress Replication
VI. Layer 3 VPNs - Advanced Topics G. Internet Multicast Signaling and Data
A. Exchanging Routes between Routing Plane
Instances H. Configuring MVPN Internet Multicast
B. Hub-and-Spoke Topologies I. Monitoring MVPN Internet Multicast
C. Layer 3 VPN CoS Options Lab: MVPN Internet Multicast
D. Layer 3 VPN and GRE Tunneling
Integration
E. Layer 3 VPN and IPsec Integration
F. Layer 3 VPN Egress Protection
G. BGP prefix-independent convergence
(PIC) edge for MPLS VPNs
H. VRF Localization
I. Provider Edge Link Protection
J. Support for configuring more than 3
million L3VPN Labels
Lab: GRE Tunneling
VII. Interprovider Backbones for Layer 3
VPNs
A. Hierarchical VPN Models
B. Carrier-of-Carriers Model
C. Option C Configuration
Lab: Carrier of Carrier Layer 3 VPNs
Due to the nature of this material, this document refers to numerous hardware and software products by their trade names. References to other companies and their products are for
informational purposes only, and all trademarks are the properties of their respective companies. It is not the intent of ProTech Professional Technical Services, Inc. to use any of these
names generically
