%% You should probably cite rfc9746 instead of this I-D. @techreport{ietf-bess-evpn-mh-split-horizon-11, number = {draft-ietf-bess-evpn-mh-split-horizon-11}, 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-mh-split-horizon/11/}, author = {Jorge Rabadan and Kiran Nagaraj and Wen Lin and Ali Sajassi}, title = {{BGP EVPN Multi-Homing Extensions for Split Horizon Filtering}}, pagetotal = 20, year = 2024, month = aug, day = 17, abstract = {Ethernet Virtual Private Network (EVPN) is commonly used with Network Virtualization Overlay (NVO) tunnels, as well as MPLS and Segment Routing tunnels. The multi-homing procedures in EVPN may vary based on the type of tunnel used within the EVPN Broadcast Domain. Specifically, there are two multi-homing Split Horizon procedures designed to prevent looped frames on multi-homed Customer Edge (CE) devices: the ESI Label-based procedure and the Local Bias procedure. The ESI Label-based Split Horizon is applied to MPLS-based tunnels, such as MPLSoUDP, while the Local Bias procedure is used for other tunnels, such as VXLAN. Current specifications do not allow operators to choose which Split Horizon procedure to use for tunnel encapsulations that support both methods. Examples of tunnels that may support both procedures include MPLSoGRE, MPLSoUDP, GENEVE, and SRv6. This document updates the EVPN multi-homing procedures described in RFC 8365 and RFC 7432, enabling operators to select the Split Horizon procedure that meets their specific requirements.}, }