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RFC 9014
Title: Interconnect Solution for Ethernet VPN
(EVPN) Overlay Networks
Author: J. Rabadan, Ed.,
S. Sathappan,
W. Henderickx,
A. Sajassi,
J. Drake
Status: Standards Track
Stream: IETF
Date: May 2021
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 24
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-bess-dci-evpn-overlay-10.txt
URL: https://www.rfc-editor.org/info/rfc9014
DOI: 10.17487/RFC9014
This document describes how Network Virtualization Overlays (NVOs)
can be connected to a Wide Area Network (WAN) in order to extend the
Layer 2 connectivity required for some tenants. The solution analyzes
the interaction between NVO networks running Ethernet Virtual Private
Networks (EVPNs) and other Layer 2 VPN (L2VPN) technologies used in
the WAN, such as Virtual Private LAN Services (VPLSs), VPLS
extensions for Provider Backbone Bridging (PBB-VPLS), EVPN, or
PBB-EVPN. It also describes how the existing technical specifications
apply to the interconnection and extends the EVPN procedures needed
in some cases. In particular, this document describes how EVPN routes
are processed on Gateways (GWs) that interconnect EVPN-Overlay and
EVPN-MPLS networks, as well as the Interconnect Ethernet Segment
(I-ES), to provide multihoming. This document also describes the use
of the Unknown MAC Route (UMR) to avoid issues of a Media Access
Control (MAC) scale on Data Center Network Virtualization Edge (NVE)
devices.
This document is a product of the BGP Enabled Services Working Group of the
IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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