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An Optional Encoding of the BIFT-id Field in the non-MPLS BIER Encapsulation

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Expired".
Expired & archived
Authors IJsbrand Wijnands , Mankamana Prasad Mishra , Xiaohu Xu , Hooman Bidgoli
Last updated 2021-05-30 (Latest revision 2020-11-26)
RFC stream Internet Engineering Task Force (IETF)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
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Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


Bit Index Explicit Replication (BIER) is an architecture that provides optimal multicast forwarding through a "multicast domain", without requiring intermediate routers to maintain any per-flow state or to engage in an explicit tree-building protocol. The Multicast packet is encapsulated using a BIER Header and transported through an MPLS or non-MPLS network. When MPLS is used as the transport, the Bit Indexed Forwarding Table (BIFT) is identified by a MPLS Label. When non-MPLS transport is used, the BIFT is identified by a 20bit value. This document describes one way of encoding the 20bit value.


IJsbrand Wijnands
Mankamana Prasad Mishra
Xiaohu Xu
Hooman Bidgoli

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)