Simplified Multicast Forwarding
RFC 6621, “Simplified Multicast Forwarding”, is an Experimental document published in May 2012 by J. Macker. The canonical text is published by the RFC Editor.
Abstract
This document describes a Simplified Multicast Forwarding (SMF) mechanism that provides basic Internet Protocol (IP) multicast forwarding suitable for limited wireless mesh and mobile ad hoc network (MANET) use. It is mainly applicable in situations where efficient flooding represents an acceptable engineering design trade-off. It defines techniques for multicast duplicate packet detection (DPD), to be applied in the forwarding process, for both IPv4 and IPv6 protocol use. This document also specifies optional mechanisms for using reduced relay sets to achieve more efficient multicast data distribution within a mesh topology as compared to Classic Flooding. Interactions with other protocols, such as use of information provided by concurrently running unicast routing protocols or interaction with other multicast protocols, as well as multiple deployment approaches are also described. Distributed algorithms for selecting reduced relay sets and related discussion are provided in the appendices. Basic issues relating to the operation of multicast MANET border routers are discussed, but ongoing work remains in this area and is beyond the scope of this document. This document defines an Experimental Protocol for the Internet community.
What “Experimental” means
Describes a specification that is part of a research or development effort, published so the community can gain experience with it.
The canonical text of RFC 6621 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 6620 FCFS SAVI: First-Come, First-Served Source Address Validation Improvement for Locally Assigned IPv6 Addresses
- RFC 6622 Integrity Check Value and Timestamp TLV Definitions for Mobile Ad Hoc Networks
- RFC 6619 Scalable Operation of Address Translators with Per-Interface Bindings
- RFC 6623 IANA Registry for MEDIACTRL Interactive Voice Response Control Package
- RFC 6618 Mobile IPv6 Security Framework Using Transport Layer Security for Communication between the Mobile Node and Home Agent
- RFC 6624 Layer 2 Virtual Private Networks Using BGP for Auto-Discovery and Signaling
- RFC 6617 Secure Pre-Shared Key Authentication for the Internet Key Exchange Protocol
- RFC 6625 Wildcards in Multicast VPN Auto-Discovery Routes