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<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">4.2.1</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 BRI</font></strong></td>
<td bgcolor="#669999" height="25" width="9"> </td>
</tr></table>
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<td>
<font FACE="Arial" SIZE="2">The command
</font>
<font FACE="Courier New" SIZE="2"><b>isdn switch-type</b> <i>
switch-type</i></font><font FACE="Arial" SIZE="2"> can be configured
at the global or interface command mode to specify the provider ISDN
switch. <img border="0" src="../../images/1.gif" align="absmiddle" width="12" height="12"></font><p>
<font FACE="Arial" SIZE="2">Configuring the </font><font FACE="Courier New" SIZE="2"><b>isdn
switch-type</b></font><font FACE="Arial" SIZE="2"> command in the
global configuration mode sets the ISDN switch type identically for
all ISDN interfaces. Individual interfaces may be configured, after
the global configuration command, to reflect an alternate switch type. </font></p>
<p>
<font FACE="Arial" SIZE="2">When the ISDN service is installed, the
service provider will issue information about the switch type and SPIDs. SPIDs are used to define the services available to individual ISDN
subscribers. Depending on the switch type, these SPIDs may have to be
added to the configuration. National ISDN-1 and DMS-100 ISDN switches
require SPIDs to be configured, but the AT&T 5ESS switch does not.
SPIDs must be specified when using the Adtran ISDN simulator.</font></p>
<p>
<font FACE="Arial" SIZE="2">The format of the SPIDs can vary depending
on the ISDN switch type and specific provider requirements. Use the
</font>
<font FACE="Courier New" SIZE="2"><b>isdn spid1</b></font><font FACE="Arial" SIZE="2">
and
</font>
<font FACE="Courier New" SIZE="2"><b>isdn spid2</b></font><font FACE="Arial" SIZE="2">
interface configuration mode commands to specify the SPID required by
the ISDN network when the router initiates a call to the local ISDN
exchange. <img border="0" src="../../images/2.gif" align="absmiddle" width="12" height="12">
<img border="0" src="../../images/3.gif" align="absmiddle" width="12" height="12"></font></p>
<p>
<font FACE="Arial" SIZE="2">Configuration of ISDN BRI is a mix of
global and interface commands.
<img border="0" src="../../images/4.gif" align="absmiddle" width="12" height="12"> To
configure the ISDN switch type, use the
</font>
<font FACE="Courier New" SIZE="2"><b>isdn switch-type</b></font><font FACE="Arial" SIZE="2">
command in global configuration mode:
</font>
</p>
<blockquote>
<p>
<font FACE="Courier New" SIZE="2">Router(config)#<b>isdn switch-type</b>
<i>switch-type</i>
</font>
</p>
</blockquote>
<p>
<font FACE="Arial" SIZE="2">The argument
</font>
<i>
<font FACE="Courier New" SIZE="2">switch-type</font></i><font FACE="Arial" SIZE="2">
indicates the service provider switch type. To disable the switch on
the ISDN interface, specify i</font><font FACE="Courier New" SIZE="2"><b>sdn
switch-type none</b></font><font FACE="Arial" SIZE="2">. The following
example configures the National ISDN-1 switch type in the global
configuration mode:</font></p>
<blockquote>
<p>
<font FACE="Courier New" SIZE="2">Router(config)#<b>isdn switch-type
basic-ni </b>
</font>
</p>
</blockquote>
<p>
<font FACE="Arial" SIZE="2">To define SPIDs use the
</font>
<font FACE="Courier New" SIZE="2"><b>isdn spid#</b></font><font FACE="Arial" SIZE="2">
command in interface configuration mode. This command is used to
define the SPID numbers that have been assigned for the B channels:
</font>
</p>
<blockquote>
<p>
<font FACE="Courier New" SIZE="2">Router(config-if)#<b>isdn spid1</b>
<i>spid-number</i> [<i>ldn</i>]<br>
Router(config-if)#<b>isdn spid2</b> <i>spid-number</i> [<i>ldn</i>]</font></p>
</blockquote>
<p>
<font FACE="Arial" SIZE="2">The optional
</font>
<i>
<font FACE="Courier New" SIZE="2">ldn</font></i><font FACE="Arial" SIZE="2">
argument defines a local dial directory number. On most switches, the
number must match the called party information coming in from the ISDN
switch. SPIDs are specified in interface configuration mode. To enter
interface configuration mode, use the
</font>
<font FACE="Courier New" SIZE="2"><b>interface bri</b></font><font FACE="Arial" SIZE="2">
command in the global configuration mode:</font></p>
<blockquote>
<p>
<font FACE="Courier New" SIZE="2">Router(config)#<b>interface bri</b>
<i>slot/port</i> <br>
Router(config)#<b>interface bri0/0</b><br>
Router(config-if)#<b>isdn
spid1 51055540000001
5554000</b><br>
Router(config-if)#<b>isdn
spid2 51055540010001
5554001</b></font></p>
</blockquote>
<p>
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<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>
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<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 target="main" href="../lab4_2_1/index.html">
<img border="0" src="../../images/lab_icon.gif" width="25" height="25"> <b>
Lab Activity</b></a></font></p>
</font><font FACE="Arial" SIZE="2" COLOR="#808080">
<p>Lab Exercise: Configuring ISDN BRI (U-Interface)</p>
<p>In this lab, the student will configure an ISDN router to make a successful
connection to a local ISDN switch. </p>
</font><font FACE="Arial" SIZE="2" COLOR="#000000">
<p>
<IMG alt="" height="2" width="1" src="../../images/s.gif"></p>
<p></TD>
</TR>
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</TD>
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</TD>
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<TABLE bgcolor="#B0AFAF" width="95%" border="0" cellspacing="0" cellpadding="0">
<TR>
<TD valign="top">
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<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>
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<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 BRI<p>
<a target="_blank" href="http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800ca71c.html">
http://www.cisco.com/en/US/products/sw/
iosswrel/ps1835/ products_configuration_guide_m chapter09186a00800ca71c.html</a></font></p>
<p>
<IMG alt="" height="2" width="1" src="../../images/s.gif"></p>
</TD>
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<font face="Arial" size="2"> </font>
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