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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>10.1 Agent state</TITLE><META NAME="description" CONTENT="10.1 Agent state"><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="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html"><LINK REL="previous" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><LINK REL="up" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><LINK REL="next" HREF="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html2852" HREF="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html2846" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html2840" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html2848" 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="tex2html2850" 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="tex2html2853" HREF="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html">10.2 Agent methods</A><B> Up:</B> <A NAME="tex2html2847" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html">10. Agents</A><B> Previous:</B> <A NAME="tex2html2841" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html">10. Agents</A>   <B> <A NAME="tex2html2849" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html2851" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <BR><BR><!--End of Navigation Panel--><H1><A NAME="SECTION03710000000000000000"></A><A NAME="sec:agentstate"></A><BR>10.1 Agent state</H1><P>The C++ Agent../ns-2/agent.h includes enough internal stateto assign various fields to a simulated packet beforeit is sent.This state includes the following:<P><TABLE CELLPADDING=3 WIDTH="100%"><TR><TD ALIGN="RIGHT"><TT>addr<BR>_</TT></TD><TD ALIGN="LEFT">node address of myself (source address in packets)</TD></TR><TR><TD ALIGN="RIGHT"><TT>dst<BR>_</TT></TD><TD ALIGN="LEFT">where I am sending packets to</TD></TR><TR><TD ALIGN="RIGHT"><TT>size<BR>_</TT></TD><TD ALIGN="LEFT">packet size in bytes (placed into the common packet header)</TD></TR><TR><TD ALIGN="RIGHT"><TT>type<BR>_</TT></TD><TD ALIGN="LEFT">type of packet (in the common header, see packet.h)</TD></TR><TR><TD ALIGN="RIGHT"><TT>fid<BR>_</TT></TD><TD ALIGN="LEFT">the IP flow identifier (formerly <EM>class</EM> in ns-1)</TD></TR><TR><TD ALIGN="RIGHT"><TT>prio<BR>_</TT></TD><TD ALIGN="LEFT">the IP priority field</TD></TR><TR><TD ALIGN="RIGHT"><TT>flags<BR>_</TT></TD><TD ALIGN="LEFT">packet flags (similar to ns-1)</TD></TR><TR><TD ALIGN="RIGHT"><TT>defttl<BR>_</TT></TD><TD ALIGN="LEFT">default IP ttl value</TD></TR></TABLE><P>These variables may be modified by any class derived from <TT>Agent</TT>,although not all of them may be needed by any particular agent.<P><HR><!--Navigation Panel--><A NAME="tex2html2852" HREF="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html2846" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html2840" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html2848" 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="tex2html2850" 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="tex2html2853" HREF="node101.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node101.html">10.2 Agent methods</A><B> Up:</B> <A NAME="tex2html2847" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html">10. Agents</A><B> Previous:</B> <A NAME="tex2html2841" HREF="node99.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node99.html">10. Agents</A>   <B> <A NAME="tex2html2849" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html2851" 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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