A company has several data centers around the world that must be interconnected over Layer2. The service provider supports MPLS services to all the locations. The proposed solution must be vendor agno

OTV (Overlay Transport Virtualization) is a Cisco-proprietary technology, which conflicts with the vendor-agnostic requirement.

VXLAN EVPN (Virtual Extensible LAN Ethernet VPN) is a highly scalable and standards-based technology that provides Layer 2 extension over an IP/MPLS infrastructure, making it suitable for multi-site DCI. Its control plane (EVPN) is vendor-agnostic and offers excellent scalability for rapid growth.

FabricPath is a Cisco-proprietary Layer 2 multipathing technology primarily used within a single data center and is not designed for DCI over an MPLS service provider network.

EoMPLS (Ethernet over MPLS) provides point-to-point Layer 2 circuits over MPLS, but it lacks the scalability, multi-point capabilities, and advanced control plane features of EVPN for a large-scale, growing multi-site DCI solution.