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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>8. Delays and Links</TITLE><META NAME="description" CONTENT="8. Delays and Links"><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="node91.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node91.html"><LINK REL="previous" HREF="node64.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node64.html"><LINK REL="up" HREF="node29.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node29.html"><LINK REL="next" HREF="node89.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node89.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html2657" HREF="node89.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node89.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html2651" HREF="node29.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node29.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html2645" HREF="node87.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node87.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html2653" 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="tex2html2655" 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="tex2html2658" HREF="node89.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node89.html">8.1 The LinkDelay Class</A><B> Up:</B> <A NAME="tex2html2652" HREF="node29.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node29.html">2 Simulator Basics</A><B> Previous:</B> <A NAME="tex2html2646" HREF="node87.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node87.html">7.5.5.3 Demarker objects</A>   <B> <A NAME="tex2html2654" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html2656" 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="SECTION03500000000000000000"></A><A NAME="chap:delays"></A><BR>8. Delays and Links</H1><P>Delays represent the time required for a packet totraverse a link.A special form of this object (``dynamic link'')also captures the possibility of a link failure.The amount of time required for a packet to traverse a linkis defined to be where is the packet size(as recorded in its IP header), is the speed of the linkin bits/sec, and is the link delay in seconds.The implementation of link delays is closely associated withthe blocking procedures described for Queues inSection<A HREF="node66.html#sec:qblock" tppabs="http://www.isi.edu/nsnam/ns/doc/node66.html#sec:qblock">7.1.1</A>.<P><BR><HR><!--Table of Child-Links--><A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A><UL><LI><A NAME="tex2html2659" HREF="node89.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node89.html">8.1 The LinkDelay Class</A><LI><A NAME="tex2html2660" HREF="node90.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node90.html">8.2 Commands at a glance</A></UL><!--End of Table of Child-Links--><BR><HR><ADDRESS>2003-09-23</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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