Hello all,
I had assumed an automated notification for this would have been generated
on the bess mailing list when it was submitted to the datatracker as it's
targeted at this group, but that apparently didn't happen. I wanted to
post here just to bring folk's attention to and invite discussion of this
draft.
Title : IMET Route Filtering for Ethernet VPN (EVPN) Ethernet
Tree (E-Tree) with
VXLAN Encapsulation
Authors : Aaron Bamberger
Akhil Shashidhar
Sergey Kolobov
Arivudainambi Appachi Gounder
Filename : draft-bamberger-bess-imet-filter-evpn-etree-vxlan-00.txt
Pages : 15
Date : 2023-03-01
Abstract:
RFC 8317 defines EVPN Ethernet Tree (E-Tree) and associated filtering
rules for both known unicast and broadcast, unknown unicast, and
multicast (BUM) traffic, using Multiprotocol Label Switching (MPLS)
encapsulation. The processes and protocols specified in RFC 8317 for
performing E-Tree filtering on known unicast traffic are implemented
entirely with EVPN routes, and are thus also applicable to networks
using Virtual Extensible LAN (VXLAN) encapsulation. However, E-Tree
filtering for BUM traffic is accomplished using specific features of
MPLS encapsulation, and is thus not applicable for networks using
VXLAN encapsulation.
In networks where E-Tree root/leaf role classification is done per-
provider edge (PE) device, or per-attachment circuit (AC) on each PE
device, an extension to EVPN type-3 inclusive multicast (IMET) routes
can be added to allow E-Tree filtering for BUM traffic in networks
using VXLAN encapsulation. Additionally, this proposal specifies
filtering BUM traffic on ingress, as opposed to the egress filtering
specified by RFC 8317, which can be considered to be more optimal, as
it reduces the amount of unnecessary BUM traffic transmitted over the
network.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-bamberger-bess-imet-filter-evpn-etree-vxlan/
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