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<!DOCTYPE FL_Course SYSTEM "https://www.flane.de/dtd/fl_course095.dtd"><?xml-stylesheet type="text/xsl" href="https://portal.flane.ch/css/xml-course.xsl"?><course productid="13387" language="en" source="https://portal.flane.ch/swisscom/en/xml-course/juniper-jl2v" lastchanged="2026-01-13T17:08:19+01:00" parent="https://portal.flane.ch/swisscom/en/xml-courses"><title>Junos Layer 2 VPNs</title><productcode>JL2V</productcode><vendorcode>JP</vendorcode><vendorname>Juniper Networks</vendorname><fullproductcode>JP-JL2V</fullproductcode><version>18.a</version><objective>&lt;ul&gt;
&lt;li&gt;Describe some of the different kinds of VPNs, their mechanics, and their use cases.&lt;/li&gt;&lt;li&gt;Describe the types of MPLS VPNs that operate at Layer 2.&lt;/li&gt;&lt;li&gt;Describe the mechanics of BGP-signaled pseudowires, also known as L2VPNs.&lt;/li&gt;&lt;li&gt;Configure BGP-signaled L2VPNs with Ethernet and Ethernet-VLAN encapsulations.&lt;/li&gt;&lt;li&gt;Demonstrate how to troubleshoot some of the most common BGP-signaled L2VPN configuration problems.&lt;/li&gt;&lt;li&gt;Describe how BGP-signaled L2VPNs use a block of labels to bring efficiency to hub-and-spoke advertisements.&lt;/li&gt;&lt;li&gt;Configure advanced BGP-signaled L2VPN features, such as multihoming, VLAN normalization, and route target constraint.&lt;/li&gt;&lt;li&gt;Describe the mechanics of LDP-signaled pseudowires, also known as Layer 2 Circuits.&lt;/li&gt;&lt;li&gt;Describe the causes and solutions of some of the most common L2Circuit configuration problems.&lt;/li&gt;&lt;li&gt;Configure advanced LDP-signaled L2Circuit features, such as multihoming and local switching.&lt;/li&gt;&lt;li&gt;Explain how the FEC 129 pseudowire method combines BGP for autodiscovery and LDP for signaling.&lt;/li&gt;&lt;li&gt;Describe the purpose and mechanics of a VPLS.&lt;/li&gt;&lt;li&gt;Create a VPLS instance that is signaled using BGP and demonstrate the commands that verify its status.&lt;/li&gt;&lt;li&gt;Create VPLS instances that are signaled using LDP and FEC 129 and demonstrate the commands available to verify their status.&lt;/li&gt;&lt;li&gt;Describe how mismatched VLAN tags are handled in a default VPLS configuration.&lt;/li&gt;&lt;li&gt;Configure a VPLS to swap mismatched VLAN tags automatically and to create multiple bridge domains inside a single VPLS instance.&lt;/li&gt;&lt;li&gt;Configure the most important VPLS traffic management features, including flood protection, MAC limiting, integrated routing and bridging (IRB) interfaces, and automated Site IDs.&lt;/li&gt;&lt;li&gt;Configure hub-and-spoke VPLS topologies.&lt;/li&gt;&lt;li&gt;Configure multihomed sites in a VPLS.&lt;/li&gt;&lt;li&gt;Describe the features of Ethernet VPN and the enhancements that EVPN brings over VPLS.&lt;/li&gt;&lt;li&gt;Explain how EVPNs advertise MAC addresses and how they request to receive flooded traffic within a bridge domain.&lt;/li&gt;&lt;li&gt;Configure and verify a single-homed VLAN-based EVPN instance (EVI).&lt;/li&gt;&lt;li&gt;Configure and verify a single-homed VLAN-aware bundle EVI.&lt;/li&gt;&lt;li&gt;Configure a multihomed EVPN and explain the purpose of the EVPN Type 4 route.&lt;/li&gt;&lt;li&gt;Describe the features provided by EVPN Type 1 routes.&lt;/li&gt;&lt;li&gt;Describe how to use MAC Mobility and IRB interfaces in an EVPN.&lt;/li&gt;&lt;li&gt;Explain how EVPNs can tightly integrate themselves into MPLS Layer 3 VPNs to provide highly efficient forwarding.&lt;/li&gt;&lt;li&gt;Describe and configure various solutions that create MPLS VPNs between service providers.&lt;/li&gt;&lt;li&gt;Describe the circuit cross-connect pseudowire method and explain how this old method can still have value in modern networks.&lt;/li&gt;&lt;li&gt;Describe how multisegment pseudowires can create Layer 2 VPNs across autonomous system boundaries.&lt;/li&gt;&lt;/ul&gt;</objective><essentials>&lt;p&gt;The prerequisites for this course include:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Intermediate-level networking knowledge.&lt;/li&gt;&lt;li&gt;An understanding of OSPF, IS-IS, BGP, and Junos routing policy.&lt;/li&gt;&lt;li&gt;Experience configuring MPLS label-switched paths using Junos.&lt;/li&gt;&lt;li&gt;Completion of the following courses, or equivalent knowledge:
&lt;ul&gt;
&lt;li&gt;&lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/en/course/juniper-ijos&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Introduction to the Junos Operating System &lt;span class=&quot;fl-prod-pcode&quot;&gt;(IJOS)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/li&gt;&lt;li&gt;&lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/en/course/juniper-jspx&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Junos Service Provider Switching &lt;span class=&quot;fl-prod-pcode&quot;&gt;(JSPX)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/li&gt;&lt;li&gt;&lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/en/course/juniper-jir&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Junos Intermediate Routing &lt;span class=&quot;fl-prod-pcode&quot;&gt;(JIR)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/li&gt;&lt;li&gt;courselink=JP-JMF][/courselink]&lt;/li&gt;&lt;/ul&gt;&lt;/li&gt;&lt;/ul&gt;</essentials><audience>&lt;p&gt;This course benefits individuals responsible for configuring and monitoring devices running the Junos OS in a service provider environment, in MPLS-based data centers, and in larger enterprises.&lt;/p&gt;</audience><contents>&lt;ul&gt;
&lt;li&gt;Module 01: Refresher&amp;mdash;VPNs and MPLS&lt;/li&gt;&lt;li&gt;Module 02: The Different Flavors of Layer 2 VPN&lt;/li&gt;&lt;li&gt;Module 03: L2VPN, aka BGP-Signaled Pseudowires&lt;/li&gt;&lt;li&gt;Module 04: L2VPN&amp;mdash;Configuration&lt;/li&gt;&lt;li&gt;Module 05: L2VPN&amp;mdash;Troubleshooting&lt;/li&gt;&lt;li&gt;Module 06: L2VPN&amp;mdash;Site IDs, the Label Base, and Overprovisioning&lt;/li&gt;&lt;li&gt;Module 07: L2VPN&amp;mdash;Advanced Concepts&lt;/li&gt;&lt;li&gt;Module 08: L2Circuit&amp;mdash;LDP-Signaled Pseudowires&lt;/li&gt;&lt;li&gt;Module 09: L2Circuit&amp;mdash;Troubleshooting&lt;/li&gt;&lt;li&gt;Module 10: L2Circuit&amp;mdash;Advanced Concepts&lt;/li&gt;&lt;li&gt;Module 11: FEC 129 Pseudowires&lt;/li&gt;&lt;li&gt;Module 12: Virtual Private LAN Service&amp;mdash;Introduction&lt;/li&gt;&lt;li&gt;Module 13: VPLS&amp;mdash;BGP Configuration and Verification&lt;/li&gt;&lt;li&gt;Module 14: VPLS&amp;mdash;LDP and FEC 129 Configuration and Verification&lt;/li&gt;&lt;li&gt;Module 15: VPLS&amp;mdash;The Default VLAN Mode&lt;/li&gt;&lt;li&gt;Module 16: VPLS&amp;mdash;VLAN Normalization, VLAN-Aware Instances, and Dual-Stacked VLANs&lt;/li&gt;&lt;li&gt;Module 17: VPLS&amp;mdash;Advanced Features and Troubleshooting&lt;/li&gt;&lt;li&gt;Module 18: VPLS&amp;mdash;Multihoming&lt;/li&gt;&lt;li&gt;Module 19: EVPN&amp;mdash;Introduction&lt;/li&gt;&lt;li&gt;Module 20: EVPN&amp;mdash;Using BGP to Advertise MACs and to Flood Traffic&lt;/li&gt;&lt;li&gt;Module 21: EVPN&amp;mdash;Configuring a Single-Homed VLAN-Based EVI&lt;/li&gt;&lt;li&gt;Module 22: EVPN&amp;mdash;Configuring a Single-Homed VLAN-Aware Bundle EVI&lt;/li&gt;&lt;li&gt;Module 23: EVPN&amp;mdash;Multihoming Configuration and Type 4 Routes&lt;/li&gt;&lt;li&gt;Module 24: EVPN&amp;mdash;Multihoming Features Using Type 1 Routes&lt;/li&gt;&lt;li&gt;Module 25: EVPN&amp;mdash;MAC Mobility and IRB Interfaces&lt;/li&gt;&lt;li&gt;Self-Study Module 26: EVPN&amp;mdash;Integration with L3VPNs&lt;/li&gt;&lt;li&gt;Self-Study Module 27: Inter-AS MPLS VPNs&lt;/li&gt;&lt;li&gt;Self-Study Module 28: Circuit Cross-Connect&lt;/li&gt;&lt;li&gt;Self-Study Module 29: Multisegment Pseudowires&lt;/li&gt;&lt;li&gt;Self-Study Module 30: VPLS&amp;mdash;Hub-and-Spoke Topologies&lt;/li&gt;&lt;/ul&gt;</contents><outline>&lt;h5&gt;Module 01: Refresher&amp;mdash;VPNs and MPLS&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the basic function and purpose of a VPN&lt;/li&gt;&lt;li&gt;Describe how MPLS uses labels to forward traffi&lt;/li&gt;&lt;li&gt;Explain the differences between MPLS layer 3 VPNs and MPLS layer 2 VPNs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 02: The Different Flavors of Layer 2 VPN&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe the purpose and creation of pseudowires&lt;/li&gt;&lt;li&gt;Define the different technical terms related to pseudowires&lt;/li&gt;&lt;li&gt;Describe the purpose and creation of VPLS&lt;/li&gt;&lt;li&gt;Describe the purpose, creation, and advantages of EVPN&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 03: L2VPN, aka BGP-Signaled Pseudowires&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Define the concepts of attachment circuit and pseudowire encapsulation&lt;/li&gt;&lt;li&gt;Explain the importance of route targets, route distinguishers, and Site IDs&lt;/li&gt;&lt;li&gt;Explain the control plane and data plane of an L2VPN&lt;/li&gt;&lt;li&gt;Describe the contents of an L2VPN BGP packet capture&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 04: L2VPN&amp;mdash;Configuration&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure an L2VPN that accepts all Ethernet traffic&lt;/li&gt;&lt;li&gt;Configure an L2VPN that accepts specific VLAN tags&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 05: L2VPN&amp;mdash;Troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Diagnose and fix L2VPN problems caused by missing LSPs, mismatched site information, and incorrect configuration&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 06: L2VPN&amp;mdash;Site IDs, the Label Base, and Overprovisioning&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the purpose of the Site ID and the VPN label base&lt;/li&gt;&lt;li&gt;Configure an overprovisioned L2VPN with explicit remote Site IDs&lt;/li&gt;&lt;li&gt;Configure an overprovisioned L2VPN with implicit remote Site IDs&lt;/li&gt;&lt;li&gt;Lab 01: BGP-Signaled Layer 2 VPNs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 07: L2VPN&amp;mdash;Advanced Concepts&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure and verify L2VPN multihoming&lt;/li&gt;&lt;li&gt;Explain the purpose of Martini encapsulation&lt;/li&gt;&lt;li&gt;Configure VLAN normalization in an L2VPN&lt;/li&gt;&lt;li&gt;Configure out-of-band route reflection and route target constraint&lt;/li&gt;&lt;li&gt;Lab 02: L2VPNs&amp;mdash;Advanced Concepts&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 08: L2Circuit&amp;mdash;LDP-Signaled Pseudowires&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the concept of targeted LDP sessions, and the elements that L2Circuits have in common with L2VPNs&lt;/li&gt;&lt;li&gt;Configure and verify an L2Circuit&lt;/li&gt;&lt;li&gt;Describe the contents of an LDP advertisement packet capture&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 09: L2Circuit&amp;mdash;Troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure the Pseudowire Status TLV&lt;/li&gt;&lt;li&gt;Explain the meaning of the most frequent L2Circuit error codes&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 10: L2Circuit&amp;mdash;Advanced Concepts&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe the purpose and benefits of virtual circuit connectivity verification&lt;/li&gt;&lt;li&gt;Configure multihoming, local switching, and interworking&lt;/li&gt;&lt;li&gt;Lab 03: LDP-Signaled L2Circuits&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 11: FEC 129 Pseudowires&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the way that FEC 129 autodiscovers remote PEs and signals pseudowires&lt;/li&gt;&lt;li&gt;Configure and verify a FEC 129 pseudowire&lt;/li&gt;&lt;li&gt;Lab 04: FEC 129 Pseudowires (Optional)&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 12: Virtual Private LAN Service&amp;mdash;Introduction&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe how a VPLS is built, and how it compares to a regular pseudowire&lt;/li&gt;&lt;li&gt;Explain how VPLS forwards traffic between multiple sites&lt;/li&gt;&lt;li&gt;Describe the BGP and LDP methods of signaling a VPLS&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 13: VPLS&amp;mdash;BGP Configuration and Verification&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure a BGP-signaled VPLS&lt;/li&gt;&lt;li&gt;Verify a BGP-signaled VPLS&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 14: VPLS&amp;mdash;LDP and FEC 129 Configuration and Verification&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure and verify an LDP-signaled VPLS&lt;/li&gt;&lt;li&gt;Configure and verify a FEC 129 VPLS&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 15: VPLS&amp;mdash;The Default VLAN Mode&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Define the four VLAN modes for VPLS&lt;/li&gt;&lt;li&gt;Define the concept of a bridge domain, and verify the default VPLS VLAN mode&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 16: VPLS&amp;mdash;VLAN Normalization, VLAN-Aware Instances, and Dual-Stacked VLANs&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure and verify VLAN-Aware mode&lt;/li&gt;&lt;li&gt;Configure and verify VLAN-Normalizing mode and No-VLAN mode&lt;/li&gt;&lt;li&gt;Configure and verify dual-stacked VLAN tags in VPLS&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 17: VPLS&amp;mdash;Advanced Features and Troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Deploy automated BGP VPLS Site IDs&lt;/li&gt;&lt;li&gt;Configure flood protection, MAC flap protection, and MAC limiting&lt;/li&gt;&lt;li&gt;Explain how to add IRB interfaces to a VPLS, and configure efficient traffic flooding using multicast LSPs&lt;/li&gt;&lt;li&gt;Describe the most important VPLS-specific troubleshooting techniques&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 18: VPLS&amp;mdash;Multihoming&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure multihomed sites in a BGP-signaled VPLS&lt;/li&gt;&lt;li&gt;Configure multihomed sites and single sites on the same PE in a BGP-signaled VPLS&lt;/li&gt;&lt;li&gt;Configure best-site multihoming in a BGP-signaled VPLS&lt;/li&gt;&lt;li&gt;Configure multihomed sites in an LDP-signaled VPLS&lt;/li&gt;&lt;li&gt;Lab 05: VPLS&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 19: EVPN&amp;mdash;Introduction&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the main disadvantages of a VPLS solution&lt;/li&gt;&lt;li&gt;Explain how EVPN overcomes these disadvantages, and enables extra features&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 20: EVPN&amp;mdash;Using BGP to Advertise MACs and to Flood Traffic&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain the meaning of an EVPN Instance&lt;/li&gt;&lt;li&gt;Describe how EVPN Type 2 routes advertise MAC addresses and MAC/IP bindings&lt;/li&gt;&lt;li&gt;Describe how EVPN Type 3 routes request to receive flooded traffic within a bridge domain&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 21: EVPN&amp;mdash;Configuring a Single-Homed VLAN-Based EVI&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure a service provider network to host EVPN services&lt;/li&gt;&lt;li&gt;Configure a single-homed VLAN-based EVI&lt;/li&gt;&lt;li&gt;Verify a VLAN-based EVI&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 22: EVPN&amp;mdash;Configuring a Single-Homed VLAN-Aware Bundle EVI&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure a VLAN-aware bundle EVI&lt;/li&gt;&lt;li&gt;Verify a VLAN-aware bundle EVI&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 23: EVPN&amp;mdash;Multihoming Configuration and Type 4 Routes&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure a CE and two PEs to take part in a multihomed EVPN&lt;/li&gt;&lt;li&gt;Describe the contents of the Type 4 Ethernet Segment route&lt;/li&gt;&lt;li&gt;Explain how the Type 4 route prevents layer 2 loops, using the designated forwarder election&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 24: EVPN&amp;mdash;Multihoming Features Using Type 1 Routes&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe Type 1 Ethernet Auto-Discovery Per-Ethernet Segment routes&lt;/li&gt;&lt;li&gt;Explain how Type 1 Per-Ethernet Segment routes prevent layer 2 loops&lt;/li&gt;&lt;li&gt;Describe how Type 1 Per-EVI routes are different from Per-ES routes&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Module 25: EVPN&amp;mdash;MAC Mobility and IRB Interfaces&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure and verify the EVPN Mac Mobility feature&lt;/li&gt;&lt;li&gt;Configure and verify Automatic Gateway MAC-IP Synchronization&lt;/li&gt;&lt;li&gt;Configure and verify Manual Gateway MAC-IP Synchronization&lt;/li&gt;&lt;li&gt;Configure and verify EVPN Virtual Gateway Addresses&lt;/li&gt;&lt;li&gt;Lab 06: EVPN&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Self-Study Module 26: EVPN&amp;mdash;Integration with L3VPNs&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe the basic functionality of an L3VPN&lt;/li&gt;&lt;li&gt;Explain how EVPNs and L3VPNs integrate for optimal routing&lt;/li&gt;&lt;li&gt;Describe how chained composite next hop brings efficiency to EVPN in the Packet Forwarding Engine&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Self-Study Module 27: Inter-AS MPLS VPNs&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Describe the functionality of Interprovider Options A, B, and C&lt;/li&gt;&lt;li&gt;Configure and verify the Interprovider Option C method&lt;/li&gt;&lt;li&gt;Describe and configure carrier-of-carrier VPNs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Self-Study Module 28: Circuit Cross-Connect&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Use circuit cross-connect to stitch pseudowires together, and to signal pseudowires that have their own pair of dedicated RSVP LSPs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Self-Study Module 29: Multisegment Pseudowires&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Explain how a multisegment pseudowire is signaled&lt;/li&gt;&lt;li&gt;Configure and verify a multisegment pseudowire&lt;/li&gt;&lt;li&gt;Lab: Inter-AS L2VPNs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;Self-Study Module 30: VPLS&amp;mdash;Hub-and-Spoke Topologies&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Configure a hub-and-spoke BGP VPLS using route targets&lt;/li&gt;&lt;li&gt;Configure a hub-and-spoke BGP VPLS using site ranges&lt;/li&gt;&lt;li&gt;Configure a hub-and-spoke LDP VPLS using hierarchical VPLS&lt;/li&gt;&lt;/ul&gt;</outline><objective_plain>- Describe some of the different kinds of VPNs, their mechanics, and their use cases.
- Describe the types of MPLS VPNs that operate at Layer 2.
- Describe the mechanics of BGP-signaled pseudowires, also known as L2VPNs.
- Configure BGP-signaled L2VPNs with Ethernet and Ethernet-VLAN encapsulations.
- Demonstrate how to troubleshoot some of the most common BGP-signaled L2VPN configuration problems.
- Describe how BGP-signaled L2VPNs use a block of labels to bring efficiency to hub-and-spoke advertisements.
- Configure advanced BGP-signaled L2VPN features, such as multihoming, VLAN normalization, and route target constraint.
- Describe the mechanics of LDP-signaled pseudowires, also known as Layer 2 Circuits.
- Describe the causes and solutions of some of the most common L2Circuit configuration problems.
- Configure advanced LDP-signaled L2Circuit features, such as multihoming and local switching.
- Explain how the FEC 129 pseudowire method combines BGP for autodiscovery and LDP for signaling.
- Describe the purpose and mechanics of a VPLS.
- Create a VPLS instance that is signaled using BGP and demonstrate the commands that verify its status.
- Create VPLS instances that are signaled using LDP and FEC 129 and demonstrate the commands available to verify their status.
- Describe how mismatched VLAN tags are handled in a default VPLS configuration.
- Configure a VPLS to swap mismatched VLAN tags automatically and to create multiple bridge domains inside a single VPLS instance.
- Configure the most important VPLS traffic management features, including flood protection, MAC limiting, integrated routing and bridging (IRB) interfaces, and automated Site IDs.
- Configure hub-and-spoke VPLS topologies.
- Configure multihomed sites in a VPLS.
- Describe the features of Ethernet VPN and the enhancements that EVPN brings over VPLS.
- Explain how EVPNs advertise MAC addresses and how they request to receive flooded traffic within a bridge domain.
- Configure and verify a single-homed VLAN-based EVPN instance (EVI).
- Configure and verify a single-homed VLAN-aware bundle EVI.
- Configure a multihomed EVPN and explain the purpose of the EVPN Type 4 route.
- Describe the features provided by EVPN Type 1 routes.
- Describe how to use MAC Mobility and IRB interfaces in an EVPN.
- Explain how EVPNs can tightly integrate themselves into MPLS Layer 3 VPNs to provide highly efficient forwarding.
- Describe and configure various solutions that create MPLS VPNs between service providers.
- Describe the circuit cross-connect pseudowire method and explain how this old method can still have value in modern networks.
- Describe how multisegment pseudowires can create Layer 2 VPNs across autonomous system boundaries.</objective_plain><essentials_plain>The prerequisites for this course include:


- Intermediate-level networking knowledge.
- An understanding of OSPF, IS-IS, BGP, and Junos routing policy.
- Experience configuring MPLS label-switched paths using Junos.
- Completion of the following courses, or equivalent knowledge:

- Introduction to the Junos Operating System (IJOS)
- Junos Service Provider Switching (JSPX)
- Junos Intermediate Routing (JIR)
- courselink=JP-JMF][/courselink]</essentials_plain><audience_plain>This course benefits individuals responsible for configuring and monitoring devices running the Junos OS in a service provider environment, in MPLS-based data centers, and in larger enterprises.</audience_plain><contents_plain>- Module 01: Refresher—VPNs and MPLS
- Module 02: The Different Flavors of Layer 2 VPN
- Module 03: L2VPN, aka BGP-Signaled Pseudowires
- Module 04: L2VPN—Configuration
- Module 05: L2VPN—Troubleshooting
- Module 06: L2VPN—Site IDs, the Label Base, and Overprovisioning
- Module 07: L2VPN—Advanced Concepts
- Module 08: L2Circuit—LDP-Signaled Pseudowires
- Module 09: L2Circuit—Troubleshooting
- Module 10: L2Circuit—Advanced Concepts
- Module 11: FEC 129 Pseudowires
- Module 12: Virtual Private LAN Service—Introduction
- Module 13: VPLS—BGP Configuration and Verification
- Module 14: VPLS—LDP and FEC 129 Configuration and Verification
- Module 15: VPLS—The Default VLAN Mode
- Module 16: VPLS—VLAN Normalization, VLAN-Aware Instances, and Dual-Stacked VLANs
- Module 17: VPLS—Advanced Features and Troubleshooting
- Module 18: VPLS—Multihoming
- Module 19: EVPN—Introduction
- Module 20: EVPN—Using BGP to Advertise MACs and to Flood Traffic
- Module 21: EVPN—Configuring a Single-Homed VLAN-Based EVI
- Module 22: EVPN—Configuring a Single-Homed VLAN-Aware Bundle EVI
- Module 23: EVPN—Multihoming Configuration and Type 4 Routes
- Module 24: EVPN—Multihoming Features Using Type 1 Routes
- Module 25: EVPN—MAC Mobility and IRB Interfaces
- Self-Study Module 26: EVPN—Integration with L3VPNs
- Self-Study Module 27: Inter-AS MPLS VPNs
- Self-Study Module 28: Circuit Cross-Connect
- Self-Study Module 29: Multisegment Pseudowires
- Self-Study Module 30: VPLS—Hub-and-Spoke Topologies</contents_plain><outline_plain>Module 01: Refresher—VPNs and MPLS


- Explain the basic function and purpose of a VPN
- Describe how MPLS uses labels to forward traffi
- Explain the differences between MPLS layer 3 VPNs and MPLS layer 2 VPNs
Module 02: The Different Flavors of Layer 2 VPN


- Describe the purpose and creation of pseudowires
- Define the different technical terms related to pseudowires
- Describe the purpose and creation of VPLS
- Describe the purpose, creation, and advantages of EVPN
Module 03: L2VPN, aka BGP-Signaled Pseudowires


- Define the concepts of attachment circuit and pseudowire encapsulation
- Explain the importance of route targets, route distinguishers, and Site IDs
- Explain the control plane and data plane of an L2VPN
- Describe the contents of an L2VPN BGP packet capture
Module 04: L2VPN—Configuration


- Configure an L2VPN that accepts all Ethernet traffic
- Configure an L2VPN that accepts specific VLAN tags
Module 05: L2VPN—Troubleshooting


- Diagnose and fix L2VPN problems caused by missing LSPs, mismatched site information, and incorrect configuration
Module 06: L2VPN—Site IDs, the Label Base, and Overprovisioning


- Explain the purpose of the Site ID and the VPN label base
- Configure an overprovisioned L2VPN with explicit remote Site IDs
- Configure an overprovisioned L2VPN with implicit remote Site IDs
- Lab 01: BGP-Signaled Layer 2 VPNs
Module 07: L2VPN—Advanced Concepts


- Configure and verify L2VPN multihoming
- Explain the purpose of Martini encapsulation
- Configure VLAN normalization in an L2VPN
- Configure out-of-band route reflection and route target constraint
- Lab 02: L2VPNs—Advanced Concepts
Module 08: L2Circuit—LDP-Signaled Pseudowires


- Explain the concept of targeted LDP sessions, and the elements that L2Circuits have in common with L2VPNs
- Configure and verify an L2Circuit
- Describe the contents of an LDP advertisement packet capture
Module 09: L2Circuit—Troubleshooting


- Configure the Pseudowire Status TLV
- Explain the meaning of the most frequent L2Circuit error codes
Module 10: L2Circuit—Advanced Concepts


- Describe the purpose and benefits of virtual circuit connectivity verification
- Configure multihoming, local switching, and interworking
- Lab 03: LDP-Signaled L2Circuits
Module 11: FEC 129 Pseudowires


- Explain the way that FEC 129 autodiscovers remote PEs and signals pseudowires
- Configure and verify a FEC 129 pseudowire
- Lab 04: FEC 129 Pseudowires (Optional)
Module 12: Virtual Private LAN Service—Introduction


- Describe how a VPLS is built, and how it compares to a regular pseudowire
- Explain how VPLS forwards traffic between multiple sites
- Describe the BGP and LDP methods of signaling a VPLS
Module 13: VPLS—BGP Configuration and Verification


- Configure a BGP-signaled VPLS
- Verify a BGP-signaled VPLS
Module 14: VPLS—LDP and FEC 129 Configuration and Verification


- Configure and verify an LDP-signaled VPLS
- Configure and verify a FEC 129 VPLS
Module 15: VPLS—The Default VLAN Mode


- Define the four VLAN modes for VPLS
- Define the concept of a bridge domain, and verify the default VPLS VLAN mode
Module 16: VPLS—VLAN Normalization, VLAN-Aware Instances, and Dual-Stacked VLANs


- Configure and verify VLAN-Aware mode
- Configure and verify VLAN-Normalizing mode and No-VLAN mode
- Configure and verify dual-stacked VLAN tags in VPLS
Module 17: VPLS—Advanced Features and Troubleshooting


- Deploy automated BGP VPLS Site IDs
- Configure flood protection, MAC flap protection, and MAC limiting
- Explain how to add IRB interfaces to a VPLS, and configure efficient traffic flooding using multicast LSPs
- Describe the most important VPLS-specific troubleshooting techniques
Module 18: VPLS—Multihoming


- Configure multihomed sites in a BGP-signaled VPLS
- Configure multihomed sites and single sites on the same PE in a BGP-signaled VPLS
- Configure best-site multihoming in a BGP-signaled VPLS
- Configure multihomed sites in an LDP-signaled VPLS
- Lab 05: VPLS
Module 19: EVPN—Introduction


- Explain the main disadvantages of a VPLS solution
- Explain how EVPN overcomes these disadvantages, and enables extra features
Module 20: EVPN—Using BGP to Advertise MACs and to Flood Traffic


- Explain the meaning of an EVPN Instance
- Describe how EVPN Type 2 routes advertise MAC addresses and MAC/IP bindings
- Describe how EVPN Type 3 routes request to receive flooded traffic within a bridge domain
Module 21: EVPN—Configuring a Single-Homed VLAN-Based EVI


- Configure a service provider network to host EVPN services
- Configure a single-homed VLAN-based EVI
- Verify a VLAN-based EVI
Module 22: EVPN—Configuring a Single-Homed VLAN-Aware Bundle EVI


- Configure a VLAN-aware bundle EVI
- Verify a VLAN-aware bundle EVI
Module 23: EVPN—Multihoming Configuration and Type 4 Routes


- Configure a CE and two PEs to take part in a multihomed EVPN
- Describe the contents of the Type 4 Ethernet Segment route
- Explain how the Type 4 route prevents layer 2 loops, using the designated forwarder election
Module 24: EVPN—Multihoming Features Using Type 1 Routes


- Describe Type 1 Ethernet Auto-Discovery Per-Ethernet Segment routes
- Explain how Type 1 Per-Ethernet Segment routes prevent layer 2 loops
- Describe how Type 1 Per-EVI routes are different from Per-ES routes
Module 25: EVPN—MAC Mobility and IRB Interfaces


- Configure and verify the EVPN Mac Mobility feature
- Configure and verify Automatic Gateway MAC-IP Synchronization
- Configure and verify Manual Gateway MAC-IP Synchronization
- Configure and verify EVPN Virtual Gateway Addresses
- Lab 06: EVPN
Self-Study Module 26: EVPN—Integration with L3VPNs


- Describe the basic functionality of an L3VPN
- Explain how EVPNs and L3VPNs integrate for optimal routing
- Describe how chained composite next hop brings efficiency to EVPN in the Packet Forwarding Engine
Self-Study Module 27: Inter-AS MPLS VPNs


- Describe the functionality of Interprovider Options A, B, and C
- Configure and verify the Interprovider Option C method
- Describe and configure carrier-of-carrier VPNs
Self-Study Module 28: Circuit Cross-Connect


- Use circuit cross-connect to stitch pseudowires together, and to signal pseudowires that have their own pair of dedicated RSVP LSPs
Self-Study Module 29: Multisegment Pseudowires


- Explain how a multisegment pseudowire is signaled
- Configure and verify a multisegment pseudowire
- Lab: Inter-AS L2VPNs
Self-Study Module 30: VPLS—Hub-and-Spoke Topologies


- Configure a hub-and-spoke BGP VPLS using route targets
- Configure a hub-and-spoke BGP VPLS using site ranges
- Configure a hub-and-spoke LDP VPLS using hierarchical VPLS</outline_plain><duration unit="d" days="2">2 days</duration><pricelist><price country="CH" currency="CHF">2100.00</price><price country="AT" currency="EUR">1800.00</price><price country="IL" currency="ILS">6250.00</price><price country="MK" currency="EUR">2500.00</price><price country="GR" currency="EUR">2500.00</price><price country="HU" currency="EUR">2500.00</price><price country="UA" currency="EUR">1800.00</price><price country="SI" currency="EUR">1800.00</price><price country="SK" currency="EUR">1800.00</price></pricelist><miles/></course>