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koyuawsmbrtn / PacketTracer deb
Repository URL to install this package:
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Version:
8.2.2 ▾
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Layer 1 Models</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="styleNormal.css">
</head>
<body><div id="main-content" tabindex="0">
<p class="MainHeading1">Layer 1 Models</p>
</div>
<hr>
<div tabindex="0">
<p class="MainHeading2">How hubs process frames</p>
</div>
<div tabindex="0">
<p class="myList">When a hub receives a frame (<a href="flowcharts/HubRepeaterReceive.jpg" target="_blank">flowchart</a>
here):</p>
<p class="myList"> </p>
</div>
<div tabindex="0">
<ul>
<li>
If two or more ports receive frames at the same time, a collision occurs and
the hub forwards a jam signal to all ports.
<li>
If one port receives a frame, the hub forwards the frame to all ports except
the receiving port.</li>
</ul>
</li>
</ul>
</div>
<p class="myList"> </p>
<div tabindex="0">
<p class="MainHeading2">How repeaters process frames</p>
</div>
<div tabindex="0">
<p class="myList">When a repeater receives a frame:</p>
</div>
<div tabindex="0">
<p class="myList"> </p>
<UL>
<li>
The repeater forwards the frame to the other port.</li></UL>
</div>
<P> </P>
<div tabindex="0">
<P class="MainHeading2">How Wireless is modeled</P>
</div>
<div tabindex="0">
<P class="myList">Packet Tracer models only certain aspects of the wireless
protocols.</P>
</div>
<div tabindex="0">
<UL>
<LI>Wireless A, B, G, and N are supported.</LI>
<LI>Infrastructure wireless mode is supported. Ad-hoc is not supported.</LI>
<LI>Authentication methods are none and WEP. WEP requires a 10 digit hex key. The authentication method and configuration must match on both the wireless client and wireless server in order for them to be associated.</LI>
<LI>An antenna's coverage area is set to a specific area and cannot be changed. The signal strength based on distance is not calculated modeling real physics.</LI>
</UL>
</div>
</body>
</html>