CODE: JUN_JL2V
LENGTH: 3 day(s)
PRICE: £2,280.00
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.
The Junos Layer 2 VPNs (JL2V) is an intermediate to advanced level course.
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
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
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), Junos Service Provider Switching (JSPX), or both
DAY 1
Course Introduction
Refresher: VPNs and MPLS
• IPsec VPNs and MPLS VPNs
• Layer 3 VPNs and layer 2 VPNs
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
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
L2VPN Configuration and Troubleshooting
• Configure an L2VPN which accepts all Ethernet traffic
• Configure an L2VPN which accepts specific VLAN tags
• Troubleshoot common L2VPN problems
L2VPN—Site IDs, The Label Base, and Overprovisioning
• The Site ID and the VPN label
• Overprovisioned L2VPN configuration
Lab 1: BGP-Signaled L2VPNs
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
L2Circuit, aka L2DP-Signalled Pseudowires
• Configure and verify an L2Circuit
• Analyze a packet capture of an LDP advertisement
L2Circuit—Troubleshooting
• Configure the Pseudowire Status TLV
• Observe the most frequent L2Circuit error statuses
L2Circuit—Advanced Concepts
• Enable Virtual Circuit Connectivity Verification
• Configure multihoming, local switching, and interworking
Lab 3: LDP-Signaled L2Circuits
DAY 2
FEC 129 Pseudowires
• Discuss the mechanics of FEC 129
• Configure and verify a FEC 129 pseudowire
Lab 4: FEC 129 Pseudowires (Optional)
Virtual Private LAN Service—Introduction
• Explain how VPLS forwards traffic between multiple sites
• Describe the three methods of signaling VPLS
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
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
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
VPLS—Advanced Topologies
• Configure hub-and-spoke VPLS
• Configure multihomed sites in a VPLS
Lab 5: VPLS
EVPN—Introduction
• Describe the advantages of EVPN over VPLS
• Explain the structure and purpose of EVPN route Type 2 and Type 3
EVPN—Single-Homed Configuration
• Configure and verify a VLAN-Based EVI
• Configure and verify a VLAN-aware bundle EVI
EVPN—Multihoming
• Describe Type 4 Ethernet Segment routes, and configure multihoming
• Describe Type 1 Ethernet Autodiscovery routes
EVPN—Advanced Concepts and Troubleshooting
• Configure and verify Automatic Gateway MAC-IP Synchronization
• Describe host routes in an L3VPN
• Configure alternative IRB methods
• Configure advanced EVPN features and mechanics
Lab: 6: EVPN
The following Appendices can be covered, if time permits, and are requested by the delegate/s prior to booking:
Appendix A: Inter-AS L2VPNs (Optional)
Appendix B: Circuit Cross-Connect (Optional)
Recommended Next Courses
• Advanced Junos Service Provider Routing (AJSPR)
• Junos Layer 3 VPN (JL3V)
• Junos Class of Service (JCOS)
• Junos Multicast Routing (JMR)
• JNCIE-SP Bootcamp
Associated Certification
JNCIP-SP