A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the BGP Enabled ServiceS of the IETF.
Title : Preference-based EVPN DF Election
Authors : Jorge Rabadan
Senthil Sathappan
Tony Przygienda
Wen Lin
John Drake
Ali Sajassi
Satya Ranjan Mohanty
Filename : draft-ietf-bess-evpn-pref-df-00.txt
Pages : 12
Date : 2017-06-21
Abstract:
RFC7432 defines the Designated Forwarder (DF) in (PBB-)EVPN networks
as the PE responsible for sending broadcast, multicast and unknown
unicast traffic (BUM) to a multi-homed device/network in the case of
an all-active multi-homing ES, or BUM and unicast in the case of
single-active multi-homing.
The DF is selected out of a candidate list of PEs that advertise the
Ethernet Segment Identifier (ESI) to the EVPN network, according to
the 'service-carving' algorithm.
While 'service-carving' provides an efficient and automated way of
selecting the DF across different EVIs or ISIDs in the ES, there are
some use-cases where a more 'deterministic' and user-controlled
method is required. At the same time, Service Providers require an
easy way to force an on-demand DF switchover in order to carry out
some maintenance tasks on the existing DF or control whether a new
active PE can preempt the existing DF PE.
This document proposes an extension to the current RFC7432 DF
election procedures so that the above requirements can be met.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-pref-df/
There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-bess-evpn-pref-df-00
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-pref-df-00
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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