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<td bgcolor="#336666"><b><font face="Arial" size="2" color="#FFFFFF">3</font></b><font face="Arial" size="2" color="#FFFFFF"><b>.1</b></font></td>
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<td bgcolor="#336666" width="100%"><strong>
<font face="Arial" size="2" color="#FFFFFF">Serial Point-to-Point Links</font></strong></td>
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<td bgcolor="#669999" height="25"><b>
<font face="Arial" size="2" color="#FFFFFF">3.1.6</font></b></td>
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<font face="Arial" size="2" color="#FFFFFF">Configuring HDLC encapsulation</font></strong></td>
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<font face="Arial" size="2">The default encapsulation method used by
Cisco devices on synchronous serial lines is Cisco HDLC</font><font FACE="Arial" SIZE="2" COLOR="#000000">. If the serial interface is
configured with another encapsulation protocol, and the encapsulation
must be changed back to HDLC, enter the interface configuration mode
of the serial interface. Then enter the
</font>
<font FACE="Courier New" SIZE="2" COLOR="#000000">
<b>encapsulation hdlc</b></font><font FACE="Arial" SIZE="2" COLOR="#000000">
command to specify the encapsulation protocol on the interface.
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Cisco HDLC is a point-to-point protocol that can be used on leased
lines between two Cisco devices. When communicating with a non-Cisco
device, synchronous PPP is a more viable option.</font></p>
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<b>Web Links</b></font></p>
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<p>Configuring Synchronous Serial Ports<p>
<a target="_blank" href="http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_configuration_guide_chapter09186a0080087283.html">
http://www.cisco.com/en/US/products/sw/
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