51 lines
3.3 KiB
HTML
51 lines
3.3 KiB
HTML
<?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 name="DC.Type" content="concept" />
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<meta name="DC.Title" content="SNA exchange identifiers" />
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<meta name="abstract" content="To establish a connection, your system and the remote device exchange information that includes the exchange identifiers (XIDs)." />
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<meta name="description" content="To establish a connection, your system and the remote device exchange information that includes the exchange identifiers (XIDs)." />
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<meta name="DC.Identifier" content="exchange_identifiers" />
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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>SNA exchange identifiers</title>
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</head>
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<body id="exchange_identifiers"><a name="exchange_identifiers"><!-- --></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">SNA exchange identifiers</h1>
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<div><p>To establish a connection, your system and the remote device exchange
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information that includes the exchange identifiers (XIDs). </p>
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<p>Systems Network Architecture (SNA) hosts that use parallel
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connections require the XIDs. You define the XIDs in the controller description.
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Typically, during the connection process your system conducts an initial poll
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with NULL XIDs to determine whether the remote device is active or not. If
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the remote device does not respond to the poll within the specified time period,
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your system can send another XID to the device. If the remote device responds
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to the poll, your system and the remote device exchange XIDs and establish
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the link.</p>
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<p>The controller description for SNA hosts names the XID value as the local
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exchange identifier. The Advanced Program-to-Program Communication (APPC)
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controller description names the XID value as the exchange identifier.</p>
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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="rzajuunderstandingstationids.htm" title="Your system compares the exchanged information against the information contained in the line and controller descriptions.">How LAN devices identify themselves</a></div>
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</div>
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</div>
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</body>
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</html> |