54 lines
3.4 KiB
HTML
54 lines
3.4 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="concept" />
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<meta name="DC.Title" content="TFTP Transfer Size option" />
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<meta name="abstract" content="The Transfer Size option allows the client to determine how much data is transferred on a read request (RRQ)." />
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<meta name="description" content="The Transfer Size option allows the client to determine how much data is transferred on a read request (RRQ)." />
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<meta name="DC.Relation" scheme="URI" content="rzal5overview.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzal5tftptran" />
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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>TFTP Transfer Size option</title>
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</head>
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<body id="rzal5tftptran"><a name="rzal5tftptran"><!-- --></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">TFTP Transfer Size option</h1>
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<div><p>The Transfer Size option allows the client to determine how much
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data is transferred on a read request (RRQ).</p>
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<div class="p">This is useful for requesting a subnet broadcast of a file. The client
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finds the size of the buffer it needs in order to store the file in memory.
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Drawing from this block size, the client determines the number of blocks for
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the transfer. The number of blocks is helpful information for tracking the
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blocks that have been received. You can also use it for the last block acknowledgment
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(ACK), which must be sent to terminate a transfer normally. Without the Transfer
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Size option, determining the size and the last block of the transfer requires
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the client to wait for a block to be received that is smaller than the block
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size of the transfer. <div class="note"><span class="notetitle">Note:</span> For files transferred in <tt>netascii</tt> mode,
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this option might not be as useful if you are converting the data during the
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transfer in a way that changes its size. Also, the server might require additional
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processing time to determine the transfer size due to conversion of the file
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to the appropriate CCSID.</div>
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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="rzal5overview.htm" title="Trivial File Transfer Protocol (TFTP) is a simple protocol that provides basic file transfer function with no user authentication.">Trivial File Transfer Protocol</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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