RFC 2189 · HISTORIC · 1997
SUN · 14 JUN 2026
Core Based Trees Multicast Routing -- Protocol Specification --
Overview
RFC 2189, “Core Based Trees Multicast Routing -- Protocol Specification --”, is a Historic document published in September 1997 by A. Ballardie. The canonical text is published by the RFC Editor.
Abstract
This document describes the Core Based Tree (CBT version 2) network layer multicast routing protocol. CBT builds a shared multicast distribution tree per group, and is suited to inter- and intra-domain multicast routing. This memo defines an Experimental Protocol for the Internet community.
What “Historic” means
A specification that has been superseded or is otherwise no longer recommended for use.
Read this RFC
The canonical text of RFC 2189 is hosted at rfc-editor.org. Available in TXT,HTML.
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