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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>17.4 Commands at a glance</TITLE><META NAME="description" CONTENT="17.4 Commands at a glance"><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="previous" HREF="node210.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node210.html"><LINK REL="up" HREF="node195.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node195.html"><LINK REL="next" HREF="node215.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node215.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html4555" HREF="node215.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node215.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html4549" HREF="node195.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node195.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html4545" HREF="node213.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node213.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html4551" 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="tex2html4553" 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="tex2html4556" HREF="node215.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node215.html">18. 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Satellite Networking in</A><B> Previous:</B> <A NAME="tex2html4546" HREF="node213.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node213.html">17.3.3 Detailed look at</A>   <B> <A NAME="tex2html4552" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html4554" 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="SECTION031440000000000000000"></A><A NAME="sec:satcommands"></A><BR>17.4 Commands at a glance</H1><P>Following is a list of commands related to satellite networking:<DIV ALIGN="LEFT"><TT>$ns_ node-config -satNodeType type</TT><BR>This node configuration declares that the subsequent new nodes createdwill be of type <type>, where <type> can be one of the following:<TT>geo, geo-repeater, polar, terminal</TT>. Other required fields forsatellite nodes (for setting up initial links and channels) are as follows (see Section <A HREF="node46.html#sec:node:nodeconfig" tppabs="http://www.isi.edu/nsnam/ns/doc/node46.html#sec:node:nodeconfig">5.3</A>):<TT>$ns_ node-config -llType type</TT><BR><TT>$ns_ node-config -ifqType type</TT><BR><TT>$ns_ node-config -ifqLen length</TT><BR><TT>$ns_ node-config -macType type</TT><BR><TT>$ns_ node-config -channelType type</TT><BR><TT>$ns_ node-config -downlinkBW value</TT><BR></DIV><P><DIV ALIGN="LEFT">(note- satNodeType geo-repeater only requires specifying the channelType- all other options are disregarded. See <TT>tcl/ex/sat-repeater.tcl</TT> for an example.)</DIV><P><DIV ALIGN="LEFT"><TT>$ns_ satnode-polar alt inc lon alpha plane linkargs chan</TT><BR>This a simulator wrapper method for creating a polar satellite node. Twolinks, uplink and downlink, are created along with two channels, uplinkchannel and downlink channel. <alt> is the polar satellite altitude,<inc> is orbit inclination w.r.t equator, <lon> is the longitude of ascending node, <alpha>gives the initial position of the satellite along this orbit, <plane> defines the plane ofthe polar satellite. <linkargs> is a list of link argument options thatdefines the network interface (like LL, Qtype, Qlim, PHY, MAC etc).</DIV><P><DIV ALIGN="LEFT"><TT>$ns_ satnode-geo lon linkargs chan</TT><BR>This is a wrapper method for creating a geo satellite node that firstcreates a satnode plus two link interfaces (uplink and downlink) plus two satellite channels (uplink and downlink). <chan> defines the type ofchannel.</DIV><P><DIV ALIGN="LEFT"><TT>$ns_ satnode-geo-repeater lon chan</TT><BR>This is a wrapper method for making a geo satellite repeater node that first creates a satnode plus two link interfaces (uplink and downlink)plus two satellite channels (uplink and downlink). </DIV><P><DIV ALIGN="LEFT"><TT>$ns_ satnode-terminal lat lon</TT><BR>This is a wrapper method that simply creates a terminal node. The <lat>and <lon> defines the latitude and longitude respectively of the terminal.</DIV><P><DIV ALIGN="LEFT"><TT>$ns_ satnode type args</TT><BR>This is a more primitive method for creating satnodes of type <type>which can be polar, geo or terminal. </DIV><P><DIV ALIGN="LEFT"><TT>$satnode add-interface type ll qtype qlim mac_bw phy</TT><BR>This is an internal method of Node/SatNode that sets up link layer, maclayer, interface queue and physical layer structures for the satellitenodes.</DIV><P><DIV ALIGN="LEFT"><TT>$satnode add-isl ltype node1 node2 bw qtype qlim</TT><BR>This method creates an ISL (inter-satellite link) between the two nodes.The link type (inter, intra or cross-seam), BW of the link, the queue-typeand queue-limit are all specified.</DIV><P><DIV ALIGN="LEFT"><TT>$satnode add-gsl ltype opt_ll opt_ifq opt_qlim opt_mac opt_bw opt_phy opt_inlink opt_outlink</TT><BR>This method creates a GSL (ground to satellite link). First a networkstack is created that is defined by LL, IfQ, Qlim, MAC, BW and PHY layers.Next the node is attached to the channel inlink and outlink.</DIV><P><DIV ALIGN="LEFT"></DIV><P><HR><!--Navigation Panel--><A NAME="tex2html4555" HREF="node215.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node215.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html4549" HREF="node195.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node195.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html4545" HREF="node213.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node213.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html4551" 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="tex2html4553" 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="tex2html4556" HREF="node215.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node215.html">18. Radio Propagation Models</A><B> Up:</B> <A NAME="tex2html4550" HREF="node195.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node195.html">17. Satellite Networking in</A><B> Previous:</B> <A NAME="tex2html4546" HREF="node213.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node213.html">17.3.3 Detailed look at</A>   <B> <A NAME="tex2html4552" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html4554" 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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