Design and Implementation of MPLS Layer 2 VPN (Martini VLL) with Traffic Engineering and Fast Reroute Using Huawei eNSP

Abstract

 This study presents the design, implementation, and evaluation of a Multiprotocol Label Switching Layer 2 Virtual Private Network (MPLS L2VPN) based on the Martini Virtual Leased Line (VLL) model within a Huawei eNSP simulation environment. The proposed architecture is designed to provide scalable and reliable Layer 2 connectivity between geographically distributed customer sites over an MPLS-enabled service provider backbone.The network design integrates Open Shortest Path First (OSPF) as the Interior Gateway Protocol (IGP), while Multiprotocol Label Switching (MPLS) and Label Distribution Protocol (LDP) are used to establish Label Switched Paths (LSPs) and pseudowire connections. In addition, MPLS Traffic Engineering (MPLS-TE) and Fast Reroute (FRR) mechanisms are implemented to optimize traffic forwarding and enhance network resilience in the event of failures.The proposed solution was validated through connectivity tests, tunnel status verification, and failure recovery scenarios. The results confirm the successful establishment of Martini-based pseudowires, stable end-to-end Layer 2 connectivity between customer sites, and correct operation of MPLS-TE tunnels. Furthermore, the FRR mechanism demonstrated rapid recovery from a simulated link failure, with only a single packet lost during traffic switchover, ensuring service continuity under failure conditions.Overall, the results demonstrate that the integration of MPLS L2VPN, MPLS Traffic Engineering, and Fast Reroute provides a robust, scalable, and resilient solution for delivering high-performance Layer 2 services in service provider and enterprise networks.