JL3V : Junos Layer 3 VPNs

  • Duration: 3 Days
  • Test Level: Advanced
  • Certifications: JNCIP-SP
  • Price: USD 2850
  • Exams: JN0-661
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. The 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 16.1R3.10, but are also applicable to other MX Series devices.

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 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.
Day 1

Chapter 1:       Course Introduction

Chapter 2:       MPLS VPNs

Provider-Provisioned VPNs

Chapter 3:       Layer 3 VPNs

Layer 3 VPN Terminology
VPN-IPv4 Address Structure
Operational Characteristics

Chapter 4:       Basic Layer 3 VPN Configuration

Preliminary Steps
PE Router Configuration
Lab: Layer 3 VPN with Static and BGP Routing

Chapter 5:       Layer 3 VPN Scaling and Internet Access

Scaling Layer 3 VPNs
Public Internet Access Options
Lab: LDP over RSVP Tunnels and Public Internet Access

Day 2

Chapter 6:       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
Lab: GRE Tunneling and Route Redistribution

Chapter 7:       Interprovider Backbones for Layer 3 VPNs

Hierarchical VPN Models
Carrier-of-Carriers Model
Option C Configuration
Lab: Carrier-of-Carriers VPNs

Chapter 8:       Troubleshooting Layer 3 VPNs

Working with Multiple Layers
Troubleshooting Commands on a PE Device
Multi-Access Interfaces in Layer 3 VPNs
PE and CE-Based Traceroutes
Layer 3 VPN Monitoring Commands
Lab: Troubleshooting Layer 3 VPNs

Day 3

Chapter 9:       Draft Rosen Multicast VPNs

Multicast Overview
Draft Rosen MVPN Overview
Draft Rosen MVPN Operation

Chapter 10:     Next-Generation Multicast VPNs

Multicast VPN Overview
Next-Generation MVPN Operation
Internet Multicast
Ingress Replication
Internet Multicast Signaling and Data Plane
Configuring MVPN Internet Multicast
Monitoring MVPN Internet Multicast
Lab: MVPNs

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 Intermediate Routing (JIR) and Junos MPLS Fundamentals (JMF) courses prior to attending this class.