%% You should probably cite draft-ietf-bess-evpn-ipvpn-interworking-18 instead of this revision. @techreport{ietf-bess-evpn-ipvpn-interworking-16, number = {draft-ietf-bess-evpn-ipvpn-interworking-16}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-ipvpn-interworking/16/}, author = {Jorge Rabadan and Ali Sajassi and Eric C. Rosen and John Drake and W. Lin and Jim Uttaro and Adam Simpson}, title = {{Interconnecting EVPN and IPVPN Domains}}, pagetotal = 38, year = 2026, month = feb, day = 28, abstract = {Ethernet Virtual Private Network (EVPN) provides a unified BGP control plane for both intra- and inter-subnet forwarding within tenant networks. When a tenant network spans multiple domains, including any combination of EVPN and IPVPN domains, it becomes necessary to define the interworking mechanisms among these BGP domains (EVPN and VPN-IP) to ensure seamless end-to-end tenant connectivity. This document defines these interworking procedures. In addition, this document defines a new BGP Path Attribute, referred to as D-PATH (Domain PATH), which provides loop prevention for gateway nodes by protecting against control plane loops. The introduction of D-PATH modifies the BGP best path selection process for Multiprotocol BGP inter-subnet forwarding routes of SAFI 128 (IPVPN) and SAFI 70 (EVPN). As a result, this specification updates the BGP best path selection procedure, but only in the context of IPVPN and EVPN route families.}, }