82 lines
5.8 KiB
HTML
82 lines
5.8 KiB
HTML
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Connection alternatives" />
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<meta name="abstract" content="PPP can transmit datagrams over serial point-to-point links." />
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<title>Connection alternatives </title>
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<body id="rzaiyconnalts"><a name="rzaiyconnalts"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Connection alternatives </h1>
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<div><p>PPP can transmit datagrams over serial point-to-point links.</p>
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<p>PPP enables interconnection of multiple vendor equipment and multiple protocols
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by standardizing point-to-point communications. The PPP data link layer uses
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High-level Data Link Control (HDLC)-like framing for encapsulating datagrams
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over both asynchronous and synchronous point-to-point telecommunication links.</p>
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<p>While PPP supports a wide range of link types, Serial-Line Internet Protocol
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(SLIP) only supports asynchronous link types. SLIP is generally
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employed only for analog links. Local telephone companies offer traditional
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telecommunications services in an ascending scale of capabilities and cost.
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These services use existing telephone company voice network facilities between
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customer and the central office.</p>
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<p>PPP links establish a physical connection between a local and remote host.
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Connected links provide dedicated bandwidth. They also come in a variety of
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data rates and protocols. With PPP links, you can choose from the following
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connection alternatives: </p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzaiyanalog.htm">Analog telephone lines</a></strong><br />
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The analog connection, which uses modems to carry data over leased or switched lines, sits at the bottom of the point-to-point scale.</li>
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<li class="ulchildlink"><strong><a href="rzaiydigital.htm">Digital services and DDS</a></strong><br />
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You can use digital service and Digital Data Services (DDS) with PPP.</li>
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<li class="ulchildlink"><strong><a href="rzaiysw56.htm">Switched-56</a></strong><br />
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When you do not need a full-time connection, you can save money
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by using switched digital service, which is generally called <dfn class="term">Switch-56
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(SW56)</dfn>.</li>
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<li class="ulchildlink"><strong><a href="rzaiyisdn4.htm">Integrated Services Digital Network</a></strong><br />
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Integrated Services Digital Network (ISDN) provides switched end-to-end digital connectivity. Unlike other services, however, ISDN can carry both voice and data over the same connection.</li>
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<li class="ulchildlink"><strong><a href="rzaiytone.htm">T1/E1 and fractional T1</a></strong><br />
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T1/E1 and fractional T1 are two kinds of valid connection alternatives.</li>
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<li class="ulchildlink"><strong><a href="rzaiyframerelay.htm">Frame relay</a></strong><br />
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Frame relay is a protocol for routing frames through the network based on the IP address field (data link connection identifier) in the frame and for managing the route or virtual connection.</li>
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<li class="ulchildlink"><strong><a href="rzaiyl2tpsupport.htm">L2TP (tunneling) support for PPP connections</a></strong><br />
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Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol that extends PPP to support a link layer tunnel between a requesting L2TP client (L2TP Access Concentrator or LAC) and a target L2TP server endpoint (L2TP Network Server or LNS).</li>
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<li class="ulchildlink"><strong><a href="rzaiypppoedsl.htm">PPPoE (DSL) support for PPP connections</a></strong><br />
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Digital subscriber line (DSL) refers to a class of technology used to obtain more bandwidth over existing copper telephone cabling running between a customer's premises and an ISP provider.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiyplan.htm" title="You can read this topic for information about creating and administering PPP connections.">Plan PPP</a></div>
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</div>
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</div>
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</body>
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