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 : Framework for EVPN Designated Forwarder Election
Extensibility
Authors : Jorge Rabadan
Satya Mohanty
Ali Sajassi
John Drake
Kiran Nagaraj
Senthil Sathappan
Filename : draft-ietf-bess-evpn-df-election-framework-02.txt
Pages : 26
Date : 2018-05-23
Abstract:
The Designated Forwarder (DF) in EVPN networks is the PE responsible
for sending broadcast, unknown unicast and multicast (BUM) traffic to
a multi-homed CE, on a given VLAN on a particular Ethernet Segment
(ES). The DF is selected out of a list of candidate PEs that
advertise the same Ethernet Segment Identifier (ESI) to the EVPN
network. By default, EVPN uses a DF Election algorithm referred to as
"Service Carving" and it is based on a modulus function (V mod N)
that takes the number of PEs in the ES (N) and the VLAN value (V) as
input. This default DF Election algorithm has some inefficiencies
that this document addresses by defining a new DF Election algorithm
and a capability to influence the DF Election result for a VLAN,
depending on the state of the associated Attachment Circuit (AC). In
addition, this document creates a registry with IANA, for future DF
Election Algorithms and Capabilities. It also presents a formal
definition and clarification of the DF Election Finite State Machine.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bess-evpn-df-election-framework/
There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-bess-evpn-df-election-framework-02
https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-df-election-framework-02
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-bess-evpn-df-election-framework-02
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/
_______________________________________________
BESS mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/bess
