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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>5.2.0.0.1 Control functions</TITLE><META NAME="description" CONTENT="5.2.0.0.1 Control functions"><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="node43.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node43.html"><LINK REL="previous" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html"><LINK REL="up" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html"><LINK REL="next" HREF="node43.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node43.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html1972" HREF="node43.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node43.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html1966" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html1960" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html1968" 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="tex2html1970" 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="tex2html1973" HREF="node43.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node43.html">5.2.0.0.2 Address and Port</A><B> Up:</B> <A NAME="tex2html1967" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html">5.2 Node Methods: Configuring</A><B> Previous:</B> <A NAME="tex2html1961" HREF="node41.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node41.html">5.2 Node Methods: Configuring</A>   <B> <A NAME="tex2html1969" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html1971" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <BR><BR><!--End of Navigation Panel--><H4><A NAME="SECTION03220010000000000000">5.2.0.0.1 Control functions</A></H4><OL><LI><TT>$node entry</TT> returns the entry point for a node.This is the first element which will handle packets arriving at that node.<P>The Node instance variable, <TT>entry_</TT>, stores the reference this element.For unicast nodes, this is the address classifier that looks at the higherbits of the destination address.The instance variable, <TT>classifier_</TT> contains the reference to thisclassifier.However, for multicast nodes, the entry point is the<TT>switch_</TT> which looks at the first bit to decide whetherit should forward the packet to the unicast classifier, or the multicastclassifier as appropriate.<P></LI><LI><TT>$node reset</TT> will reset all agents at the node.</LI></OL><P><BR><HR><ADDRESS>2003-09-23</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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