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I-D ACTION:draft-ietf-manet-tbrpf-09.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Mobile Ad-hoc Networks Working Group of the IETF.

	Title		: Topology Dissemination Based on Reverse-Path 
                          Forwarding (TBRPF)
	Author(s)	: R. Ogier, M. Lewis, F. Templin
	Filename	: draft-ietf-manet-tbrpf-09.txt
	Pages		: 49
	Date		: 2003-6-26
	
TBRPF is a proactive, link-state routing protocol designed for mobile
ad-hoc networks, which provides hop-by-hop routing along shortest
paths to each destination. Each node running TBRPF computes a source
tree (providing paths to all reachable nodes) based on partial
topology information stored in its topology table, using a
modification of Dijkstra's algorithm. To minimize overhead, each node
reports only *part* of its source tree to neighbors. TBRPF uses a
combination of periodic and differential updates to keep all
neighbors informed of the reported part of its source tree. Each node
also has the option to report additional topology information (up to
the full topology), to provide improved robustness in highly mobile
networks. TBRPF performs neighbor discovery using 'differential'
HELLO messages which report only *changes* in the status of
neighbors. This results in HELLO messages that are much smaller than
those of other link-state routing protocols such as OSPF.

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