Method to enable signaling of L2VPN services using SRv6 extensions

This document describes a mechanism to provide L2VPN services using Segment Routing over IPv6 (SRv6), eliminating the need for a separate signaling protocol for VPN label distribution. In current deployments, L2VPN services rely on dedicated protocols such as Label Distribution Protocol (LDP) or Border Gateway Protocol (BGP) for service label signaling, which adds control-plane complexity. The proposed mechanism introduces an SRv6-based extension that enables L2VPN service identification within the SRv6 framework. This approach reduces control-plane overhead and provides a simplified and efficient solution for L2VPN service delivery.