74 lines
5.1 KiB
HTML
74 lines
5.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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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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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Single line" />
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<meta name="abstract" content="Select this line service to define a PPP line that is associated with an analog modem. This option is also used for leased lines where a modem is not required. The PPP connection profile always uses the same iSeries server communications port resource." />
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<meta name="description" content="Select this line service to define a PPP line that is associated with an analog modem. This option is also used for leased lines where a modem is not required. The PPP connection profile always uses the same iSeries server communications port resource." />
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<meta name="DC.Relation" scheme="URI" content="rzaiylinkcfg.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzaiysingleline" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Single line</title>
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</head>
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<body id="rzaiysingleline"><a name="rzaiysingleline"><!-- --></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">Single line</h1>
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<div><p>Select this line service to define a PPP line that is associated
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with an analog modem. This option is also used for leased lines where a modem
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is not required. The PPP connection profile always uses the same iSeries™ server
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communications port resource.</p>
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<div class="section"><p>An analog single line, if required, might be configured as <tt>shared</tt> between
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an answer profile and a dial profile. The dynamic resource sharing is a new
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function designed to enhance resource usability. Until V5R2, the modem resources
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were committed as soon as the profile using it was started. This was limiting
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the user to one resource per session, even if the resource was in the passive
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wait state. Now, new sharing rules apply when a specific resource has been
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accessed. There are two cases: first, a dial profile was started before an
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answer profile; second, an answer profile was started before a dial profile.
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The assumption is that the resource sharing is enabled. In the first case,
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the dial profile that was started will successfully connect. The answer profile
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that was started second, will wait for the line to become available. After
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the dial connection was ended, the answer profile will request the line, and
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will start. In the second case, the answer profile that was started will wait
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for the incoming connections. Unless an incoming connection was made, the
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dial profile that was started second, will "borrow" the line from the answer
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profile, which will "lend" the line. The outgoing connection will then be
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established. After the connection was ended, the dial profile will return
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the line to the answer profile which will again be ready to accept incoming
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connections. To enable the sharing function, click the modem tab for a switched
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line description, and select <span class="uicontrol">Enable Dynamic Resource Sharing</span>.</p>
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</div>
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<div class="section"><p>Single line service is also used for L2TP (virtual line) and PPPoE
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(virtual line) connection types. For L2TP (virtual line) connection types,
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there is no hardware communications port resource used with the single line.
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Rather, the single line used with an L2TP connection is <em>virtual</em> in
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that there is no physical PPP hardware that is required to establish the tunnel.
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The single line used with a PPPoE connection is also virtual in that it provides
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a mechanism for treating a physical Ethernet line as if it were a PPP line
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that supports remote connections. The PPPoE virtual line is bound to a physical
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Ethernet line and is used to support PPP protocol data transfers over the
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Ethernet LAN connection to a DSL modem. </p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiylinkcfg.htm" title="Link configuration defines the type of line service that your PPP connection profile uses to establish a connection.">Link configuration</a></div>
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</div>
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</div>
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</body>
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</html>
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