RFC 9793 - BGP Extensions for Bit Index Explicit Replication (BIER)
- Status: Proposed Standard
- Published: June 2025
- Stream: IETF
- Pages: 12
- Errata: Errata Available
Abstract
Bit Index Explicit Replication (BIER) is a multicast forwarding architecture that does not require an explicit tree-building protocol or per-tree multicast state in intermediate routers. This document describes BGP extensions for advertising BIER information and methods for calculating BIER state from those advertisements.
Related Resources
- Official Text: RFC 9793
- Official Page: RFC 9793 DataTracker
- Errata: RFC Editor Errata