PIM Extensions for P2MP-based BIER
draft-xie-pim-bier-extension-00

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Last updated 2018-09-06 (latest revision 2018-03-05)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-xie-pim-bier-extension-00.txt

Abstract

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].

Authors

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.)