[bess] I-D Action: draft-ietf-bess-evpn-na-flags-04.txt
internet-drafts@ietf.org Wed, 03 July 2019 19:52 UTC
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Subject: [bess] I-D Action: draft-ietf-bess-evpn-na-flags-04.txt
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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-04.txt Pages : 8 Date : 2019-07-03 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 defines an 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-04 https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-na-flags-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-evpn-na-flags-04 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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