I-D ACTION:draft-ietf-manet-zone-zrp-02.txt

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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		: The Zone Routing Protocol (ZRP) for Ad Hoc Networks
	Author(s)	: Z. Haas, M. Pearlman
	Filename	: draft-ietf-manet-zone-zrp-02.txt
	Pages		: 56
	Date		: 22-Jun-99
	
This document describes the Zone Routing Protocol (ZRP), a hybrid
routing protocol suitable for a wide variety of mobile ad-hoc
networks, especially those with large network spans and diverse
mobility patterns.  Each node proactively maintains routes within a
local region (referred to as the routing zone).  Knowledge of the
routing zone topology is leveraged by the ZRP to improve the
efficiency of a reactive route query/reply mechanism.  The proactive
maintenance of routing zones also helps improve the quality of
discovered routes, by making them more robust to changes in network
topology. The ZRP can be configured for a particular network by
proper selection of a single parameter, the routing zone radius.

   This version of the ZRP internet draft describes a number of
   features which have been added to the protocol.  The distance-vector
   based IARP algorithm has been enchanced to prevent the 'counting
   to infinity problem'.  Route caching is now supported by the IERP
   route discovery process.  By allowing discovered route information
   to be distributed in caches, route accumulation in the IERP query/
   reply packets can be avoided, thereby reducing the amount of
   route discovery traffic, and improving the query response time.
   Two additional (optional) stages have also been added to the route
   discovery process, to support the acquisition and optimization of
   source routes.

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