RFC 9793

BGP Extensions for Bit Index Explicit Replication (BIER), June 2025

File formats:

icon for HTML icon for text file icon for v3pdf icon for XML icon for inline errata
Also available: XML file for editing
 
Status:
PROPOSED STANDARD
Authors:
X. Xu
M. Chen
K. Patel
IJ. Wijnands
T. Przygienda
Z. Zhang, Ed.
Stream:
IETF
Source:
bier (rtg)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9793

Discuss this RFC: Send questions or comments to the mailing list bier@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF  |  View History of RFC 9793


Abstract

Bit Index Explicit Replication (BIER) is a multicast forwarding architecture that doesn't require an explicit tree-building protocol and doesn't require intermediate routers to maintain per-tree multicast states. Some BIER-specific information and states, which are only in proportion to the number of BIER routers but not per-tree, do need to be advertised, calculated, and maintained. This document describes BGP extensions for advertising the BIER information and methods for calculating BIER states based on the advertisements.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




Advanced Search