I-D Action: draft-rabadan-bess-evpn-pref-df-01.txt
internet-drafts@ietf.org Sat, 28 May 2016 02:07 UTC
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Preference-based EVPN DF Election Authors : Jorge Rabadan Senthil Sathappan Tony Przygienda Wen Lin John Drake Ali Sajassi Satya Ranjan Mohanty Filename : draft-rabadan-bess-evpn-pref-df-01.txt Pages : 11 Date : 2016-05-27 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-rabadan-bess-evpn-pref-df/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-rabadan-bess-evpn-pref-df-01 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-rabadan-bess-evpn-pref-df-01 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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