PIM Extensions for P2MP-based BIER

Document Type Expired Internet-Draft (individual)
Last updated 2018-09-06 (latest revision 2018-03-05)
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Bit Index Explicit Replication (BIER) is a new architecture that provides optimal multicast forwarding without requiring intermediate routers to maintain any per-flow state by using a multicast-specific BIER header. PIM is a well-known multicast-specific routing protocol which is widely deployed either in a VRF context or in a Non-VRF context. This document describes PIM extensions to signal a P2MP Tree with BIER information, which is called a P2MP based BIER in [I.D.xie-bier-mvpn-mpls-p2mp]. PIM is required to alloc Label to build a P2MP tree hop-by-hop, and build a P2MP based BIER forwarding table further. This requires a BitMask being carried as a PIM Join Attribute by downstream node to upstream node hop-by-hop, and the behavior is like precedures as specified in [RFC6807].


Jingrong Xie (xiejingrong@huawei.com)
Yisong Liu (liuyisong@huawei.com)
Mike McBride (mmcbride7@gmail.com)

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