Technical Summary
This document specifies Protocol Independent Multicast - Sparse Mode
(PIM-SM). PIM-SM is a multicast routing protocol that can use the
underlying unicast routing information base or a separate multicast-
capable routing information base. It builds unidirectional shared
trees rooted at a Rendezvous Point (RP) per group, and optionally
creates shortest-path trees per source.This document addresses errata
filed against RFC 4601, and removes the optional (*,*,RP) and PIM
Multicast Border Router features that lacks sufficient deployment
experience.
Working Group Summary
There was very good feedback on the list over the last year,
particularly during the last WGLCs.
All comments were addressed to the satisfaction of those commenting.
Document Quality
There are several existing implementations of the protocol over the span
of many years. Bharat Joshi, most particularly, had many recent comments
that were all addressed in final fine tuning of the document.
RFC7063 documents the features implemented in a survey report.
The document shepherds verified that all the errata had been handled.
Personnel
Mike McBride & Bill Atwood are the document shepherd and Alvaro Retana
is the responsible AD.