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A New Proposal for Bi-directional PIM
draft-kouvelas-pim-bidir-new-00

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Dr. Deborah Estrin , Mark J. Handley , Isidor Kouvelas , Lorenzo Vicisano
Last updated 1999-10-20
RFC stream (None)
Intended RFC status (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document discusses a new form of Bi-directional PIM, a variant of PIM Sparse Mode [1] that builds bi-directional shared trees con- necting multicast sources and receivers. The ideas presented in this document are similar to those described in [2]. The main difference between the two proposals is in the method used to forward packets traveling upstream from a source to the RP. In particular [2] uses an IP option (UMP option) on data packets to assist with upstream forwarding. The UMP option identifies the next hop router responsible for forwarding the packet upstream. In contrast, this proposal does not alter data packets to embed con- trol information. Instead the identification of the next hop upstream forwarder is performed at RP discovery time using a fail-safe elec- tion mechanism. This significantly simplifies forwarding procedures and eliminates forwarding loops and packet duplication problems that exist in [2].

Authors

Dr. Deborah Estrin
Mark J. Handley
Isidor Kouvelas
Lorenzo Vicisano

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