L2VPN Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases
L2VPN Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases
Provides configuration and management guidance for deploying L2VPN services on Cisco 8000 Series Routers running IOS XR. It covers key topics such as YANG models, VLANs, transparent protocol tunneling, link bundling, Layer 2 bridging, pseudowire solutions, traffic engineering, integrated routing and bridging, spanning tree protocols, and service activation testing.
Specific changes or updates tied to individual releases are clearly called out within the relevant sections. For a list of features introduced in a specific release, refer to the Release Notes.
The table lists the release numbers for which this document has been updated since its initial publication.
| Date | Summary |
|---|---|
|
September 2026 |
Republished for Release 26.3.1. |
|
February 2026 |
Republished for Release 26.1.1. |
|
December 2025 |
Republished for Release 25.4.1. |
|
October 2025 |
First published for Release 25.3.1. |
Lists the supported YANG data models and their corresponding L2VPN features on this platform.
Introduces Layer 2 virtual private networks, covering service requirements, supported interfaces, and key benefits to provide a foundational understanding of L2VPN technology, its deployment considerations, and operational advantages.
Outlines Virtual LAN operations in Layer 2 VPN environments, covering VLAN services, subinterface encapsulation, Ethernet Flow Points, configuration procedures, encapsulation types, and deployment guidelines for scalable and flexible networking.
Introduces Transparent Layer 2 protocol tunneling, outlining requirements, supported protocols, protocol handling mechanisms, and verification steps to enable efficient Layer 2 protocol transport across network boundaries.
Outlines the use of link bundles in Layer 2 VPNs, detailing their benefits, configuration procedures for interface and VLAN bundles, link aggregation methods, and providing reference information on bundle characteristics and formation.
Outlines Layer 2 bridging solutions, including bridge domains, VLAN bridging, MAC address management, VPLS configuration, pseudowire operations, storm control, and GTP load balancing for robust Ethernet and VPN service delivery.
Outlines the concepts, requirements, configuration, and operational modes for deploying pseudowire over MPLS and point-to-point Layer 2 services, including supported topologies, service modes, redundancy, and local switching between attachment circuits.
Explains advanced pseudowire concepts, covering headend interface architecture, virtual circuit verification, multisegment pseudowires, GIL prune behavior, hardware requirements, configuration tasks, and operational behaviors for robust Layer 2 VPN connectivity.
Outlines traffic engineering principles, load balancing strategies, and protection mechanisms for L2 services, providing guidance on optimizing service delivery, ensuring network resilience, and enhancing performance across various deployment scenarios.
Explains integrated routing and bridging concepts, EVPN IRB architecture, packet forwarding mechanisms, planning guidelines, configuration procedures, and advanced distributed anycast gateway features for robust Layer 2/Layer 3 network deployment.
Introduces Multiple Spanning Tree Protocol concepts, supported features, configuration tasks, restrictions, interface parameters, protocols, and operational behaviors to guide deployment and optimize network efficiency across diverse environments.
Outlines the use of Y.1564 for Ethernet service activation testing, including methodology concepts, SLA assurance, key performance indicators, supported bandwidth and encapsulation, test targets, operational guidelines, and procedures for test execution on interfaces.