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+
+<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">
+<style>
+<!--
+span.msoIns
+ {mso-style-name:"";
+ text-decoration:underline;
+ text-underline:single;
+ color:teal}
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+</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"><b><font face="Arial" size="2" color="#FFFFFF">4.2</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">ISDN Configuration</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">4.2.2</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">Configuring ISDN PRI</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>
+
+ <p>
+ <font face="Arial" size="2">ISDN PRI is delivered over a leased T1 or
+ E1 line. The main PRI configuration tasks are as follows:
+ <img border="0" src="../../images/1.gif" align="absmiddle" width="12" height="12"></p>
+ <ol>
+ <li>Specify the correct PRI switch
+ type that the router interfaces with at the CO of
+ the ISDN provider. </li>
+ <li>Specify the T1/E1 controller, framing type, and line coding for
+ the facility of the ISDN provider. </li>
+ <li>Set a PRI group timeslot for the T1/E1 facility and indicate the
+ speed used. </font></li>
+ </ol>
+ <p><font face="Arial" size="2">Because routers connect to PRI using
+ T1/E1, there is no "interface pri” command. Instead, the physical
+ interface on the router that connects to the leased line is called a
+ T1 controller, or an E1 controller, if an E1 line is being used. This
+ controller must be configured properly in order to communicate with the
+ carrier network. The ISDN PRI D and PRI B channels are configured
+ separately from the controller, using the
+ </font><font face="Courier New" size="2"><b>interface serial</b></font><font face="Arial" size="2"> command.
+ </font></p>
+ <p><font face="Arial" size="2">Use the </font>
+ <font face="Courier New" size="2"><b>isdn switch-type</b></font><font face="Arial" size="2"> command to
+ specify the ISDN switch used by the provider to which the PRI
+ connects. As with BRI, this command can be issued globally or in
+ interface configuration mode. The table shows the switch types
+ available for ISDN PRI configuration:
+ <img border="0" src="../../images/2.gif" align="absmiddle" width="12" height="12"></font></p>
+ <blockquote>
+ <p><font face="Courier New" size="2">Router(config)#<b>isdn
+ switch-type
+ primary-net5 </b> </font></p>
+ </blockquote>
+ <p><font face="Arial" size="2">Configuring a T1 or E1 controller is
+ done in four parts:
+ <img border="0" src="../../images/3.gif" align="absmiddle" width="12" height="12"></p>
+ <ol>
+ <li>From global configuration mode,
+ specify the controller and the slot/port in the router where the PRI
+ card is located:
+ </font><font face="Courier New" size="2">
+ <p>Router(config)#<b>controller</b>
+ {<b>t1</b> |
+ <b>e1</b>} {<i>slot</i>/<i>port</i>} <br>
+ Router(config-controller)# </li>
+ <br>
+ </li></font><font face="Arial" size="2"><li>Configure the framing, line coding, and clocking, as dictated by
+ the service provider. The </font><font face="Courier New" size="2">
+ <b>framing</b></font><font face="Arial" size="2">
+ command is used to select the frame
+ type used by the PRI service provider. For T1, use the following
+ command syntax:
+ </font><font face="Courier New" size="2">
+ <p>Router(config-controller)#<b>framing</b> {<b>sf</b> | <b>esf</b>}</p>
+ </font><font face="Arial" size="2">
+ For E1 lines, use the </font><font face="Courier New" size="2">
+ <b>framing</b></font><font face="Arial" size="2">
+ command with the following options:
+ </font><font face="Courier New" size="2">
+ <p>Router(config-controller)#<b>framing</b> {<b>crc4</b> | <b>no-crc4</b>}
+ [<b>australia</b>] </p>
+ </font><font face="Arial" size="2">
+ Use the </font><font face="Courier New" size="2">
+ <b>linecode</b></font><font face="Arial" size="2">
+ command to identify the physical-layer signaling
+ method on the digital facility of the provider:
+ </font><font face="Courier New" size="2">
+ <p>Router(config-controller)#<b>linecode</b> {<b>ami</b> | <b>b8zs</b>|
+ <b>hdb3</b>} </p>
+ </font><font face="Arial" size="2">
+ <p>In North America, the B8ZS signaling method is used for T1 carrier
+ facilities. It allows a full 64 kbps for each ISDN channel. In Europe,
+ it is typically HDB3 encoding that is used.</p>
+ </li>
+ <li>Configure the specified interface for PRI operation and the number
+ of fixed timeslots that are allocated on the digital facility of the
+ provider:
+ </font><font face="Courier New" size="2">
+ <p>Router(config-controller)#<b>pri-group</b> [<b>timeslots</b>
+ <i>range</i>] </font></p>
+ <font face="Arial" size="2">
+ <p>For T1, the range of timeslots used is 1-24. For E1 the range of
+ timeslots used is 1-31.</p>
+ </li>
+ <li>Specify an interface for PRI D-channel operation. The interface
+ is a serial interface to a T1/E1 on the router: </font>
+ <p><font size="2" face="Courier New">Router(config)#<b>interface serial</b>{<i>slot/port:</i> | <i>unit:</i>}{<b>23</b> | <b>15</b>} </font>
+ </font></li>
+ </ol>
+ <p><font face="Arial" size="2">Within an E1 or T1 facility, the
+ channels start numbering at 1. The numbering ranges from 1 to 31 for
+ E1 and 1 to 24 for T1. Serial interfaces in the Cisco router start
+ numbering at 0. Therefore, channel 16, the E1 signaling channel, is
+ channel 15 on the interface. Channel 24, the T1 signaling channel,
+ becomes channel 23 on the interface. Thus, interface serial 0/0:23
+ refers to the D channel of a T1 PRI. </font></p>
+ <p><font face="Arial" size="2">Subinterfaces, commonly used with Frame
+ Relay, are designated with a dot, or period. For example, Serial
+ 0/0.16 is a subinterface. Do not confuse the channels of a T1 or E1
+ with subinterfaces. Channels use a colon instead of a dot to indicate
+ the channel number: </font></p>
+ <ul>
+ <li><font face="Arial" size="2">S0/0.23 refers to a Subinterface</font></li>
+ <li><font face="Arial" size="2">S0/0:23 refers to a channel </font>
+ </li>
+ </ul>
+ <TABLE bgcolor="#669999" width="95%" cellspacing="0" cellpadding="0" border="0">
+ <TR>
+ <TD width="5">
+ <img border="0" src="../../images/lab_toplft.gif" width="116" height="23"></TD>
+ <TD>
+ <IMG alt="" height="1" width="3" src="../../images/s.gif"></TD><TD align="right" valign="top">
+ <IMG alt="" src="../../images/corner_ur_7.gif" width="7" height="7"></TD>
+ </TR>
+ </TABLE>
+
+ <TABLE bgcolor="#B0AFAF" width="95%" cellspacing="0" cellpadding="0" border="0">
+ <TR>
+ <TD>
+ <TABLE width="100%" cellpadding="2" cellspacing="0" border="0" bordercolor="#111111">
+ <TR>
+ <TD bgcolor="#ffffff" width="15"> </TD>
+ <TD bgcolor="#ffffff"><font FACE="Arial" SIZE="2" COLOR="#000000">
+ <p><font color="#808080">
+
+ <a href="javascript:void(0)" onClick="window.open('../../elabs/mod04/elab_4_2_2/elab4_2_2.html','Interactivity','width=740,height=390,toolbar=0,resizable=yes,scrollbars=0,screenX=26,screenY=38,left=26,top=38');">
+ <img border="0" src="../../images/lab_icon.gif" width="25" height="25"><b></a>
+ <a href="javascript:void(0)" onClick="window.open('../../elabs/mod04/elab_4_2_2/elab4_2_2.html','Interactivity','width=740,height=390,toolbar=0,resizable=yes,scrollbars=0,screenX=26,screenY=38,left=26,top=38');">Lab Activity</a></b></font></p>
+ </font><font FACE="Arial" SIZE="2" COLOR="#808080">
+ <p>e-Lab Activity:
+ </font><font FACE="Courier New" SIZE="2" COLOR="#808080">
+ <b>isdn switch-type</b></p>
+ </font><font FACE="Arial" SIZE="2" COLOR="#808080">
+ <p>In this activity, the student will demonstrate how to use the
+ </font><font FACE="Courier New" SIZE="2" COLOR="#808080">
+ <b>isdn switch-type</b></font><font FACE="Arial" SIZE="2" COLOR="#808080">
+ command.</p>
+ <font FACE="Arial" SIZE="2" COLOR="#000000">
+ <p></TD>
+ </TR>
+ </TABLE>
+ </TD>
+ </TR>
+ </TABLE>
+
+
+
+ <TABLE bgcolor="#B0AFAF" width="95%" border="0" cellspacing="0" cellpadding="0">
+ <TR>
+ <TD valign="top">
+ <TABLE bgcolor="#669999" width="100%" cellspacing="0" cellpadding="0" border="0">
+ <TR>
+ <TD width="5">
+ <img border="0" src="../../images/lab_toplft.gif" width="116" height="23"></TD>
+ <TD><IMG alt="" height="1" width="3" src="../../images/s.gif"></TD><TD align="right" valign="top">
+ <IMG alt="" src="../../images/corner_ur_7.gif" width="7" height="7"></TD>
+ </TR>
+ </TABLE>
+
+ <TABLE bgcolor="#B0AFAF" width="100%" cellspacing="0" cellpadding="0" border="0">
+ <TR>
+ <TD>
+ <TABLE width="100%" cellpadding="2" cellspacing="0" border="0" bordercolor="#111111">
+ <TR>
+ <TD bgcolor="#ffffff" width="15"> </TD>
+ <TD bgcolor="#ffffff"><font FACE="Arial" SIZE="2" COLOR="#000000">
+ <p><font color="#808080">
+ <img border="0" src="../../images/links_icon.gif" width="25" height="25">
+ <b>Web Links</b></font></p>
+ </font><font FACE="Arial" SIZE="2" COLOR="#808080">
+
+ <p>Configuring ISDN PRI<p>
+ <a target="_blank" href="http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800ca71d.html">
+ http://www.cisco.com/en/US/products/sw/
+ iosswrel/ps1835/products_configuration_
+ guide_chapter09186a00800ca71d.html</a></font></p>
+
+ <p>
+ <IMG alt="" height="2" width="1" src="../../images/s.gif"></p>
+ </TD>
+ </TR>
+ </TABLE>
+ </TD>
+ </TR>
+ </TABLE>
+ </TD>
+ </TR>
+ </TABLE><p>
+
+
+ <font face="Arial" size="2"> </font>
+ </TD>
+ </TR>
+ </TABLE>
+ </TD>
+ </TR>
+ </TABLE></td>
+ </tr>
+ </table>
+
+</blockquote>
+</blockquote>
+</blockquote>
+
+</body>
+
+</html>
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