Junos Layer 2 VPNs (JL2V)

Junos Layer 2 VPNs (JL2V) 

This two-day course is designed to provide students with the knowledge required to design, implement, and troubleshoot a wide variety of layer 2 MPLS VPNs, including pseudowires (BGP L2VPNs, LDP L2Circuits, FEC 129, and CCC), virtual private LAN service (VPLS), Ethernet VPN (EVPN), and Inter-AS Layer 2 VPNs. This course is based on Junos 21.2R1 and contains hands-on labs that gives extensive CLI configuration practice as well as many examples of common errors, and the troubleshooting steps required to fix them.



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Course Level

Junos Layer 2 VPNs (JL2V) is an intermediate-to-advanced level course.

Intended Audience

The primary audiences for this course are the following:

  • Individuals responsible for designing, implementing, and troubleshooting MPLS VPNs which operate at layer 2
  • Individuals who work with, or who aspire to work with, service provider networks
  • Individuals studying for the JNCIP-SP or JNCIE-SP exam

Prerequisites

The following are the prerequisite skills for this course:

  • Strong general TCP/IP knowledge
  • Junos knowledge to JNCIA-Junos level
  • LDP/RSVP and routing/switching knowledge to JNCIS-SP level

The following are the prerequisite courses that should be completed before attending this course (or equivalent knowledge):

  • Getting Started with Networking (eLearning)
  • Introduction to the Junos Operating System (IJOS)
  • Junos MPLS Fundamentals (JMF)
  • Junos Intermediate Routing (JIR)
  • Junos Enterprise Switching (JEX) and/or Junos Service Provider Switching (JSPX)

Objectives

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

  • Describe some of the different kinds of VPN, their mechanics and their use cases
  • Discuss the types of MPLS VPN which operate at layer 2
  • Discuss the mechanics of BGP-signaled pseudowires, also known as a Layer 2 VPN (L2VPN)
  • Configure and troubleshoot BGP-signaled L2VPNs
  • Describe how and why L2VPNs advertise a range of labels
  • Configure advanced BGP-signaled L2VPN features
  • Discuss the mechanics of LDP-signaled pseudowires, also known as a Layer 2 Circuit (L2Circuit)
  • Identify and fix common L2Circuit problems
  • Configure advanced LDP-signaled L2Circuit features
  • Discuss the mechanics of FEC 129 pseudowires, which combines BGP for autodiscovery and LDP for signaling
  • Describe the purpose and mechanics of a VPLS
  • Configure and verify VPLS
  • Configure and verify different VPLS VLAN modes
  • Describe and configure VPLS advanced features, and VPLS troubleshooting
  • Configure advanced VPLS topologies
  • Describe the features and advantages of Ethernet VPN
  • Configure and verify single-homed EVPN instances
  • Explain, configure, and verify EVPN multihoming
  • Configure EVPN IRB interfaces, and other advanced EVPN concepts

Course Contents

Day 1

Module 1: Course Introduction

Module 2: Refresher: VPNs and MPLS

  • IPsec VPNs and MPLS VPNs
  • Layer 3 VPNs and layer 2 VPNs

Module 3: The Different Flavors of Layer 2 VPN

  • Discuss the function and creation of pseudowires
  • Discuss the function and creation of VPLS
  • Discuss the function and creation of EVPN

Module 4: L2VPN aka BGP-Signaled Pseudowires

  • Define some essential L2VPN terminology
  • Explore the control plane and data plane of an L2VPN
  • Observe an L2VPN packet capture

Module 5: L2VPN Configuration and Troubleshooting

  • Configure an L2VPN which accepts all Ethernet traffic
  • Configure an L2VPN which accepts specific VLAN tags
  • Troubleshoot common L2VPN problems

Day 2

Module 6: L2VPN—Site IDs, The Label Base, and Overprovisioning

  • The Site ID and the VPN label
  • Overprovisioned L2VPN configuration
  • Lab 1: BGP-Signaled L2VPNs

Module 7: L2VPN Advanced Concepts

  • Configure and verify multihoming
  • Explain Martini encapsulation and VLAN normalization
  • Configure traffic policing, out-of-band route reflection, and route target constraint
  • Lab 2: L2VPNs—Advanced Concepts

Module 8: L2Circuit, aka L2DP-Signalled Pseudowires

  • Configure and verify an L2Circuit
  • Analyze a packet capture of an LDP advertisement

Module 9: L2Circuit—Troubleshooting

  • Configure the Pseudowire Status TLV
  • Observe the most frequent L2Circuit error statuses

Module 10: L2Circuit—Advanced Concepts

  • Enable Virtual Circuit Connectivity Verification
  • Configure multihoming, local switching, and interworking
  • Lab 3: LDP-Signaled L2Circuits

Day 2

Module 11: FEC 129 Pseudowires

  • Discuss the mechanics of FEC 129
  • Configure and verify a FEC 129 pseudowire
  • Lab 4: FEC 129 Pseudowires (Optional)

Module 12: Virtual Private LAN Service—Introduction

  • Explain how VPLS forwards traffic between multiple sites
  • Describe the three methods of signaling VPLS

Module 13: VPLS—Configuration and Verification

  • Configure a BGP-signaled VPLS
  • Verify a BGP-signaled VPLS
  • Configure and verify an LDP-signaled VPLS
  • Configure and verify a FEC 129 VPLS

Module 14: VPLS—The Four Modes of MAC Learning

  • Configure and verify the default VLAN mode and VLAN-Aware mode
  • Configure and verify VLAN-Normalizing mode and No-VLAN mode
  • Configure and verify dual-stacked VLAN tags in VPLS

Module 15: VPLS—Advanced Features and Troubleshooting

  • Configure protection and MAC limiting in a VPLS
  • Add IRB interfaces to VPLS instances, and configure efficient traffic flooding
  • Describe VPLS-specific troubleshooting techniques

Module 16: VPLS—Advanced Topologies

  • Configure hub-and-spoke VPLS
  • Configure multihomed sites in a VPLS
  • Lab 5: VPLS

Module 17: EVPN—Introduction

  • Describe how to query Junos OS Evolved system state
  • Troubleshoot object dependency issues

Module 18: EVPN—Single-Homed Configuration

  • Describe the advantages of EVPN over VPLS
  • Explain the structure and purpose of EVPN route types 2 and 3

Module 19: EVPN—Multihoming

  • Explain the system logging and tracing infrastructure in Junos OS Evolved
  • Explain how to retrieve support information and statistics
  • Explain how to inspect Docker container statistics and configuration details

Module 20: EVPN—Advanced Concepts and Troubleshooting

  • Describe the advantages of EVPN over VPLS
  • Explain the structure and purpose of EVPN route types 2 and 3
  • Lab 6: EVPN

Appendix A: Inter-AS L2VPNs (Optional)

  • Explain the system logging and tracing infrastructure in Junos OS Evolved
  • Explain how to retrieve support information and statistics
  • Explain how to inspect Docker container statistics and configuration details

Appendix B: Circuit Cross-Connect (Optional)

  • Configure and verify Automatic Gateway MAC-IP Synchronization
  • Describe host routes in an L3VPN
  • Configure alternative IRB methods
  • Configure advanced EVPN features and mechanics

Schedule
  Below is a list of scheduled dates when this event will take place. Some events require registration for attendance so you will need to click on the date for more information regarding the specific event.

If you don't see the date you prefer, please contact us to request a date or schedule your custom training session.

Display dates for 

 
Date  Subject Region Location Facilitator Language Status
12/1/2021 Junos Layer 2 VPNs (JL2V) - ILO Asia Pacific (APAC) APAC Online Datacipher - Australia & New Zealand English Open
12/9/2021 9:00 AM CET Junos Layer 2 VPNs (JL2V) - ILO Europe, Middle East and Africa (EMEA) Instructor-led Online Juniper Networks English Full
12/15/2021 7:30 AM PST Junos Layer 2 VPNs (JL2V) - ILO Americas (AMER) Instructor-led Online Juniper Networks English Full
12/27/2021 Junos Layer 2 VPNs (JL2V) - ILO Asia Pacific (APAC) APAC Online Datacipher - India & Sri Lanka English Open
2/7/2022 Junos Layer 2 VPNs (JL2V) - ILO Americas (AMER) AMER Online Dynamic Worldwide English Open
3/7/2022 7:30 AM PST Junos Layer 2 VPNs (JL2V) - ILO Americas (AMER) Instructor-led Online Juniper Networks English Open
3/10/2022 9:00 AM CET Junos Layer 2 VPNs (JL2V) - ILO Europe, Middle East and Africa (EMEA) Instructor-led Online Juniper Networks English Open
6/23/2022 9:00 AM CET Junos Layer 2 VPNs (JL2V) - ILO Europe, Middle East and Africa (EMEA) Instructor-led Online Juniper Networks English Open