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<html><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><!--Converted with jLaTeX2HTML 2002 (1.62) JA patch-1.4patched version by: Kenshi Muto, Debian Project.LaTeX2HTML 2002 (1.62),original version by: Nikos Drakos, CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>16.1.5.1 DSDV</TITLE><META NAME="description" CONTENT="16.1.5.1 DSDV"><META NAME="keywords" CONTENT="everything"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META NAME="Generator" CONTENT="jLaTeX2HTML v2002 JA patch-1.4"><META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"><LINK REL="STYLESHEET" HREF="everything.css" tppabs="http://www.isi.edu/nsnam/ns/doc/everything.css"><LINK REL="next" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html"><LINK REL="previous" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><LINK REL="up" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><LINK REL="next" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html4060" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html4054" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html4048" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html4056" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="file:/usr/share/latex2html/icons/contents.png"></A> <A NAME="tex2html4058" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html"><IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="file:/usr/share/latex2html/icons/index.png"></A> <BR><B> Next:</B> <A NAME="tex2html4061" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html">16.1.5.2 DSR</A><B> Up:</B> <A NAME="tex2html4055" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html">16.1.5 Different types of</A><B> Previous:</B> <A NAME="tex2html4049" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html">16.1.5 Different types of</A>   <B> <A NAME="tex2html4057" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html4059" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <BR><BR><!--End of Navigation Panel--><H3><A NAME="SECTION031315100000000000000"></A><A NAME="sec:dsdv"></A><BR>16.1.5.1 DSDV</H3><P>In this routing protocol routing messages are exchanged betweenneighbouring mobilenodes (i.e mobilenodes that are within range of oneanother). Routing updates may be triggered or routine. Updates aretriggered in case a routing information from one of t he neighbours forces a change in the routing table.A packet for which the route to its destination is not known is cachedwhile routing queries are sent out. The pkts are cached untilroute-replies are received from the destination. There is a maximum buffersize for caching the pkts waiting for routing information beyond whichpkts are dropped. <P>All packets destined for the mobilenode are routed directly by the addressdmux to its port dmux. The port dmux hands the packets to the respectivedestination agents. A port number of 255 is used to attach routing agentin mobilenodes. The mobilenodes also use a default-target in their classifier (or address demux). In theevent a target is not found for the destination in the classifier (whichhappens when the destination of the packet is not the mobilenode itself),the pkts are handed to the default-ta rget which is the routing agent. The routing agent assigns the next hopfor the packet and sends it down to the link layer. <P>The routing protocol is mainly implemented in C++. See dsdvdirectory and tcl/mobility/dsdv.tcl for all procedures related toDSDV protocol implementation. <P><HR><!--Navigation Panel--><A NAME="tex2html4060" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html4054" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html4048" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html4056" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="file:/usr/share/latex2html/icons/contents.png"></A> <A NAME="tex2html4058" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html"><IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="file:/usr/share/latex2html/icons/index.png"></A> <BR><B> Next:</B> <A NAME="tex2html4061" HREF="node181.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node181.html">16.1.5.2 DSR</A><B> Up:</B> <A NAME="tex2html4055" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html">16.1.5 Different types of</A><B> Previous:</B> <A NAME="tex2html4049" HREF="node179.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node179.html">16.1.5 Different types of</A>   <B> <A NAME="tex2html4057" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html4059" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <!--End of Navigation Panel--><ADDRESS>2003-09-23</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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