A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the BGP Enabled ServiceS WG of the IETF.
Title : Propagation of ARP/ND Flags in EVPN
Authors : Jorge Rabadan
Senthil Sathappan
Kiran Nagaraj
Wen Lin
Filename : draft-ietf-bess-evpn-na-flags-03.txt
Pages : 8
Date : 2019-04-25
Abstract:
An EVPN MAC/IP Advertisement route can optionally carry an IPv4 or
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 and reduce/suppress the flooding
produced by the Address Resolution procedure. The information
conveyed in the MAC/IP route may not be enough for the remote PE to
reply to local ARP or ND requests. For example, if a PE learns an
IPv6->MAC ND entry via EVPN, the PE would not know if that particular
IPv6->MAC pair belongs to a host, a router or a host with an anycast
address, as this information is not carried in the MAC/IP route
advertisements. Similarly, other information relevant to the IP->MAC
ARP/ND entries may be needed. This document proposes an OPTIONAL
extended community that is advertised along with an EVPN MAC/IP
Advertisement route and carries information relevant to the ARP/ND
resolution, so that an EVPN PE implementing a proxy-ARP/ND function
can reply to ARP Requests or Neighbor Solicitations with the correct
information.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-na-flags/
There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-bess-evpn-na-flags-03
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-na-flags-03
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-evpn-na-flags-03
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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