Operational Aspects of Proxy-ARP/ND in EVPN Networks

Document Type Replaced Internet-Draft (bess WG)
Authors Jorge Rabadan  , Senthil Sathappan  , Kiran Nagaraj  , Wim Henderickx  , Greg Hankins  , Thomas King  , Daniel Melzer  , Erik Nordmark 
Last updated 2016-02-06 (latest revision 2015-10-06)
Replaced by draft-ietf-bess-evpn-proxy-arp-nd
Stream IETF
Intended RFC status Informational
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd Thomas Morin
IESG IESG state Replaced by draft-ietf-bess-evpn-proxy-arp-nd
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The MAC/IP Advertisement route specified in [RFC7432] can optionally carry IPv4 and IPv6 addresses associated with a MAC address. Remote PEs can use this information to reply locally (act as proxy) to IPv4 ARP requests and IPv6 Neighbor Solicitation messages (or 'unicast- forward' them to the owner of the MAC) and reduce/suppress the flooding produced by the Address Resolution procedure. This EVPN capability is extremely useful in Internet Exchange Points (IXPs) and Data Centers (DCs) with large broadcast domains, where the amount of ARP/ND flooded traffic causes issues on routers and CEs, as explained in [RFC6820]. This document describes how the [RFC7432] EVPN proxy- ARP/ND function may be implemented to help IXPs and other operators deal with the issues derived from Address Resolution in large broadcast domains.


Jorge Rabadan (jorge.rabadan@alcatel-lucent.com)
Senthil Sathappan (senthil.sathappan@alcatel-lucent.com)
Kiran Nagaraj (kiran.nagaraj@alcatel-lucent.com)
Wim Henderickx (wim.henderickx@alcatel-lucent.com)
Greg Hankins (greg.hankins@alcatel-lucent.com)
Thomas King (thomas.king@de-cix.net)
Daniel Melzer (daniel.melzer@de-cix.net)
Erik Nordmark (nordmark@arista.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)