BIER Use Case in Data Centers
draft-wang-bier-vxlan-use-case-02

Document Type Expired Internet-Draft (individual)
Authors Cui Wang  , Zheng Zhang 
Last updated 2017-03-09 (latest revision 2016-09-05)
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This Internet-Draft is no longer active.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-wang-bier-vxlan-use-case-02.txt

Abstract

Bit Index Explicit Replication (BIER) is an architecture that provides optimal multicast forwarding through a "BIER domain" without requiring intermediate routers to maintain any multicast related per- flow state. BIER also does not require any explicit tree-building protocol for its operation. A multicast data packet enters a BIER domain at a "Bit-Forwarding Ingress Router" (BFIR), and leaves the BIER domain at one or more "Bit-Forwarding Egress Routers" (BFERs). The BFIR router adds a BIER header to the packet. The BIER header contains a bit-string in which each bit represents exactly one BFER to forward the packet to. The set of BFERs to which the multicast packet needs to be forwarded is expressed by setting the bits that correspond to those routers in the BIER header. This document tries to describe the drawbacks of how BUM services are deployed in current data centers, and proposes how to take full advantage of BIER to implement BUM services in data centers.

Authors

Cui Wang (wang.cui1@zte.com.cn)
Zheng Zhang (zhang.zheng@zte.com.cn)

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