Ethernet Virtual Private Networks enables :

Ethernet Virtual Private Network (EVPN) is a BGP-based control plane technology designed to provide Layer 2 and Layer 3 connectivity services over an IP or MPLS underlay. Its primary application is in modern data centers to create scalable, multi-tenant network overlays. EVPN, often used with VXLAN encapsulation, enables network virtualization by decoupling the virtual network topology from the physical network infrastructure. This allows for flexible workload placement, seamless virtual machine mobility, and the creation of isolated logical networks for different tenants or applications, which are fundamental requirements for data center network virtualization.

B. EVPN's core function is providing L2/L3 reachability for overlay networks, not dynamic traffic engineering, which is typically managed by underlay protocols like RSVP-TE or Segment Routing.
C. Segment Routing-Traffic Engineering (SR-TE) is a separate underlay technology for path control. While EVPN can operate over an SR-TE underlay, it is not SR-TE itself.
D. EVPN uses BGP to abstract and hide the underlay topology from the overlay tenants, not expose it. SON controllers are primarily associated with Radio Access Networks (RAN).

1. IETF RFC 8365: A Network Virtualization Overlay Solution Using Ethernet VPN (EVPN).

Section 1 (Introduction): "This document specifies a Network Virtualization Overlay (NVO) solution using Ethernet VPN (EVPN). [...] The solution is referred to as EVPN NVO and is applicable to Data Center (DC) networks." This directly links EVPN to network virtualization in data centers.

DOI: https://doi.org/10.17487/RFC8365

2. Nokia Data Center Fabric Solution Guide.

Chapter: EVPN for the Data Center Fabric Control Plane, Section: Introduction to EVPN: "EVPN is a standards-based control plane for VXLAN that allows for the creation of scalable, resilient, and agile virtual networks in the data center. It provides the foundation for network virtualization..." This document explicitly states EVPN's role in enabling network virtualization within the data center context. (Note: Specific page numbers vary by document version, but this concept is foundational in the introductory sections of Nokia's EVPN documentation).

3. IETF RFC 7432: BGP MPLS-Based Ethernet VPN.

Section 1 (Introduction): "This document describes procedures for BGP MPLS-based Ethernet VPNs (EVPN). [...] The use cases for EVPN are Data Center Interconnect (DCI) for L2 connectivity..." This foundational RFC establishes EVPN's role in providing the L2 connectivity essential for virtualized data center environments.

DOI: https://doi.org/10.17487/RFC7432