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BIER Penultimate Hop Popping

Document Type Expired Internet-Draft (bier WG)
Expired & archived
Author Zhaohui (Jeffrey) Zhang
Last updated 2023-09-10 (Latest revision 2023-03-09)
Replaces draft-zzhang-bier-php
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Consensus: Waiting for Write-Up
Doc Shepherd Follow-up Underway
Document shepherd Xiao Min
Shepherd write-up Show Last changed 2023-03-09
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
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This Internet-Draft is no longer active.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) can be used as provider tunnel for Multicast Virtual Private Network (MVPN), Global Table Multicast or Ethernet Virtual Private Network (EVPN). It is possible that not all routers in the provider network support BIER and there are various methods to handle BIER-incapable transit routers. However those methods assume the MVPN/EVPN Provider Edges (PEs) are BIER- capable. This document specifies a method to allow BIER-incapable routers to act as MVPN/EVPN PEs with BIER as the transport, by having the upstream BIER Forwarding Router (BFR) that is connected directly or indirectly via a tunnel to a BIER-incapable PE remove the BIER header and send the payload to the PE.


Zhaohui (Jeffrey) Zhang

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