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| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4 | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4')
| -rw-r--r-- | Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/buttons.html | 110 | ||||
| -rw-r--r-- | Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/content.html | 92 | ||||
| -rw-r--r-- | Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/index.html | 29 | ||||
| -rw-r--r-- | Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/media.html | 21 |
4 files changed, 252 insertions, 0 deletions
diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/buttons.html b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/buttons.html new file mode 100644 index 0000000..23a8321 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/buttons.html @@ -0,0 +1,110 @@ +<html>
+
+<head>
+
+
+
+<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
+<meta http-equiv="Content-Language" content="en-us">
+
+
+
+<title>New Page 1</title>
+<script language="JavaScript" src="../../javascript/buttons.js"></script>
+
+
+<script language="JavaScript">
+
+<!--
+
+if (document.images) {
+ image1on = new Image();
+ image1on.src = "../../images/index_ov.gif";
+
+ image2on = new Image();
+ image2on.src = "../../images/glossary_ov.gif";
+
+ image3on = new Image();
+ image3on.src = "../../images/back_ov.gif";
+
+ image4on = new Image();
+ image4on.src = "../../images/next_ov.gif";
+
+ image5on = new Image();
+ image5on.src = "../../images/quiz_ov.gif";
+
+ image1off = new Image();
+ image1off.src = "../../images/index_up.gif";
+
+ image2off = new Image();
+ image2off.src = "../../images/glossary_up.gif";
+
+ image3off = new Image();
+ image3off.src = "../../images/back_up.gif";
+
+ image4off = new Image();
+ image4off.src = "../../images/next_up.gif";
+
+ image5off = new Image();
+ image5off.src = "../../images/quiz_up.gif";
+
+ image1hint = new Image();
+ image1hint.src = "../../images/menu_index.gif";
+
+ image2hint = new Image();
+ image2hint.src = "../../images/menu_glossary.gif";
+
+ image3hint = new Image();
+ image3hint.src = "../../images/menu_back.gif";
+
+ image4hint = new Image();
+ image4hint.src = "../../images/menu_next.gif";
+
+ image5hint = new Image();
+ image5hint.src = "../../images/menu_quiz.gif";
+
+ imageHint = new Image();
+ imageHint.src = "../../images/menu_up.gif";
+}
+
+function changeImages() {
+ if (document.images) {
+ for (var i=0; i<changeImages.arguments.length; i+=2) {
+ document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
+ }
+ }
+}
+
+// -->
+</script>
+
+
+<base target="_self">
+
+
+</head>
+
+<body bgcolor="#cccccc" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0">
+
+<table border="0" cellpadding="0" cellspacing="0" height="48" width="100%" style="border-collapse: collapse" bordercolor="#111111">
+ <tr>
+ <td bgcolor="#336666" width="100%" height="48" align="right"><font color="#FFFFFF" size="2" face="Arial"><b> </b></font>
+ <img name="hint" border="0" src="../../images/menu_up.gif" width="136" height="19"></td>
+ <td bgcolor="#336666" align="left" height="48"><a onMouseOver="changeImages('image1', 'image1on'); changeImages('hint', 'image1hint');" onMouseOut="changeImages('image1', 'image1off'); changeImages('hint', 'imageHint');" href="javascript:openIndex('ch2');">
+ <img name="image1" border="0" src="../../images/index_up.gif" width="31" height="48"></a></td>
+ <td bgcolor="#336666" align="left" height="48"><a onMouseOver="changeImages('image5', 'image5on'); changeImages('hint', 'image5hint');" onMouseOut="changeImages('image5', 'image5off'); changeImages('hint', 'imageHint');" href="javascript:openQuiz('ch02');">
+ <img name="image5" border="0" src="../../images/quiz_up.gif" width="31" height="48"></a></td>
+ <td bgcolor="#336666" align="left" height="48"><a href="javascript:openGlossary();" onMouseOver="changeImages('image2', 'image2on'); changeImages('hint', 'image2hint');" onMouseOut="changeImages('image2', 'image2off'); changeImages('hint', 'imageHint');">
+ <img name="image2" border="0" src="../../images/glossary_up.gif" width="31" height="48"></a></td>
+
+ <td bgcolor="#336666" valign="middle" align="left" height="48">
+ <a target="main" onMouseOver="changeImages('image3', 'image3on'); changeImages('hint', 'image3hint');" onMouseOut="changeImages('image3', 'image3off'); changeImages('hint', 'imageHint');" href="../2_3_3/index.html">
+ <img name="image3" border="0" src="../../images/back_up.gif" width="30" height="48"></a></td>
+ <td bgcolor="#336666" width="100%" valign="middle" height="48">
+ <a target="main" onMouseOver="changeImages('image4', 'image4on'); changeImages('hint', 'image4hint');" onMouseOut="changeImages('image4', 'image4off'); changeImages('hint', 'imageHint');" href="../2_3_5/index.html">
+ <img name="image4" border="0" src="../../images/next_up.gif" width="30" height="48"></a></td>
+ <td height="48"><img border="0" src="../../images/menu_bar.gif" width="15" height="48"></td>
+ </tr>
+</table>
+
+</html>
\ No newline at end of file diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/content.html b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/content.html new file mode 100644 index 0000000..0040a5c --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/content.html @@ -0,0 +1,92 @@ +<html>
+
+<head>
+<meta http-equiv="Content-Language" content="en-us">
+<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
+
+
+
+<title>Content</title>
+<base target="_self">
+</head>
+
+<body background="../../images/bg.gif" topmargin="0" leftmargin="0" marginheight="0" marginwidth="0" onLoad="window.focus();" link="#808080" vlink="#808080" alink="#808080">
+
+<table border="0" cellpadding="0" cellspacing="0" width="100%">
+ <tr>
+ <td bgcolor="#336666" width="18" valign="top">
+ <img border="0" src="../../images/content_lines.gif" width="16" height="25">
+ <img border="0" src="../../images/transdot.gif" width="2" height="1"></td>
+ <td bgcolor="#336666"><font face="Arial" size="2" color="#FFFFFF"><b>2.</b></font><b><font face="Arial" size="2" color="#FFFFFF">3</font></b></td>
+ <td bgcolor="#336666"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>
+ <td bgcolor="#336666" width="100%"><strong>
+ <font face="Arial" size="2" color="#FFFFFF">WAN Design</font></strong></td>
+ <td width="9" bgcolor="#336666"> </td>
+ </tr>
+ <tr>
+ <td bgcolor="#669999" height="25" width="18"> </td>
+ <td bgcolor="#669999" height="25"><b><font face="Arial" size="2" color="#FFFFFF">
+ 2.3.4</font></b></td>
+ <td bgcolor="#669999"><img border="0" src="../../images/transdot.gif" width="10" height="1"></td>
+ <td bgcolor="#669999" height="25" width="100%"><strong>
+ <font face="Arial" size="2" color="#FFFFFF">Three-layer design model</font></strong></td>
+ <td bgcolor="#669999" height="25" width="9"> </td>
+ </tr></table>
+
+<table border="0" cellpadding="0" cellspacing="0" width="95%" bordercolor="#111111">
+ <tr>
+ <td width="15"></td>
+ <td><font face="Arial" size="2">
+ A systematic approach is needed when many locations
+ must be joined. A hierarchical solution with three layers offers many
+ advantages.
+ <img border="0" src="../../images/1.gif" align="absmiddle" width="12" height="12">
+ <p>Imagine an enterprise that is operational in every country of the
+ European Union and has a branch in every town with a population over
+ 10,000. Each branch has a LAN, and it has been decided to interconnect
+ the branches. A mesh network is clearly not feasible because nearly
+ 500,000 links would be needed for the 900 centers. A simple
+ star will be very difficult to implement because it needs a router
+ with 900 interfaces at the hub or a single interface that carries 900
+ virtual circuits to a packet-switched network.</p>
+ <p>Instead, consider a hierarchical design model. A group of LANs in an
+ area are interconnected, several areas are interconnected to form a
+ region, and the various regions are interconnected to form the core of
+ the WAN. </p>
+ <p>The area could be based on the number of locations to be connected
+ with an upper limit of between 30 and 50. The area would have a star
+ topology,
+ <img border="0" src="../../images/2.gif" align="absmiddle" width="12" height="12">
+ with the hubs of the stars linked to form the region.
+ <img border="0" src="../../images/3.gif" align="absmiddle" width="12" height="12">
+ <img border="0" src="../../images/4.gif" align="absmiddle" width="12" height="12">
+ Regions could be geographic, connecting between three and ten areas,
+ and the hub of each region could be linked point-to-point.
+ <img border="0" src="../../images/5.gif" align="absmiddle" width="12" height="12"></p>
+ <p>This three-layer model follows the hierarchical design used in telephone
+ systems. The links connecting the various sites in an area that
+ provide access to the enterprise network are called the access links
+ or access layer of the WAN. Traffic between areas is distributed by
+ the distribution links, and is moved onto the core links for transfer
+ to other regions, when necessary.</p>
+ <p>This hierarchy is often useful when the network traffic mirrors the
+ enterprise branch structure and is divided into regions, areas, and
+ branches. It is also useful when there is a central service to which
+ all branches must have access, but traffic levels are insufficient to
+ justify direct connection of a branch to the service.</p>
+ <p>The LAN at the center of the area may have servers providing
+ area-based as well as local service. Depending on the traffic volumes
+ and types, the access connections may be dial up, leased, or Frame
+ Relay. Frame Relay facilitates some meshing for redundancy without
+ requiring additional physical connections. Distribution links could be
+ Frame Relay or ATM, and the network core could be ATM or leased line.</p>
+ <p>
+
+ </font></p>
+ </td>
+ </tr>
+ </table>
+
+</body>
+
+</html>
\ No newline at end of file diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/index.html b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/index.html new file mode 100644 index 0000000..82a25be --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/index.html @@ -0,0 +1,29 @@ +<html>
+
+<head>
+
+<title>Cisco Global Learning Network</title>
+<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
+
+</head>
+
+<frameset cols="490,301" framespacing="0" border="0" frameborder="0" marginheight=0 marginwidth=0 topmargin=0 leftmargin=0>
+ <frameset rows="100%,48">
+ <frame name="graphics" scrolling="no" marginwidth="0" marginheight="0" src="media.html">
+ <frame name="bottom" scrolling="no" marginwidth="0" marginheight="0" src="../../navigation.html" target="contents">
+ </frameset>
+ <frameset rows="100%,48">
+ <frame name="content" scrolling="yes" marginwidth="0" marginheight="0" target="_self" src="content.html">
+ <frame name="navigation" scrolling="no" marginwidth="0" marginheight="0" noresize src="buttons.html" target="self">
+ </frameset>
+
+ <noframes>
+ <body>
+
+ <p>This page uses frames, but your browser doesn't support them.</p>
+
+ </body>
+ </noframes>
+</frameset>
+
+</html>
diff --git a/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/media.html b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/media.html new file mode 100644 index 0000000..6db7cf3 --- /dev/null +++ b/Bachelor/CCNA4/en_CCNA4_v30/ch2/2_3_4/media.html @@ -0,0 +1,21 @@ +<html>
+
+<head>
+
+
+
+<title>Flash Graphic</title>
+</head>
+
+<body bgcolor="#FFFFFF" topmargin="1" leftmargin="1">
+<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
+ codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0"
+ WIDTH="100%" HEIGHT="100%">
+ <PARAM NAME=movie VALUE="../../flash/ch02/2_3_4.swf"> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#FFFFFF>
+ <EMBED src="../../flash/ch02/2_3_4.swf" quality=high bgcolor=#FFFFFF WIDTH="100%" HEIGHT="100%" TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED></OBJECT>
+
+
+
+</body>
+
+</html>
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