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<html> <head> <meta content="en-us" http-equiv="Content-Language"> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <link type="text/css" rel="stylesheet" href="../../../../../css/ccna.css"> <script src="../../../../../js/framesetHelper.js" language="JavaScript"></script><script language="JavaScript"> window.scrollTo(0,0); function newPage(pageID) { alert("COMMING SOON!!\nThis feature is currently in development."); } function launchMoreInfo(oid) { dash = oid.indexOf('-'); sub1 = oid.substring(0,dash); sub2 = oid.substring(dash+1); // this is an URL base on the // system that generated the static // download of the curriculum. httpref = "http://nomar.sdf.cisco.com/servlet/org.cli.delivery.rendering.servlet.MIServlet/Static=true,LMSID=DTUI,Engine=dynamic,Theme=cnamstheme,Style=ccna,Language=en,Version=2,RootID=knet-v214aCV47051/CHAPID=null/RLOID=null/RIOID=null/"; newref = httpref + sub1 +"/"+ sub2 +"/moreinfoframeset.html"; //alert("new newref :\n" + newref); window.open(newref,'MoreInfo','toolbar=no,status=yes,menubar=no,location=no,scrollbars=yes,height=442,width=756,left=20,top=20,resizable=yes') } function launchContentResource(contentID) { top.currentSupport = 0; 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Server file storage and server print operations are detailed. The notion of indirect network application support, using redirector protocols, is introduced.</p> <p>This TI relates to CCNA Certification Exam Objectives #1.</p> </span></td> </tr> </table> </td> </tr> </table> </td> </tr> </table><p>Within a LAN environment, indirect-application network support is a client-server function. If a client wants to save a file from a word processor to a network server, the redirector enables the word processing application to become a network client.<img border="0" src="../../../../../CHAPID=knet-v214aCH47515/RLOID=knet-v214aRLO48007/RIOID=knet-v214aRIO124715/knet/v214adataimage1/1.gif" width="12" height="12"></p><p>The redirector is a protocol that works with computer operating systems and network clients instead of specific application programs.<img border="0" src="../../../../../CHAPID=knet-v214aCH47515/RLOID=knet-v214aRLO48007/RIOID=knet-v214aRIO124715/knet/v214adataimage2/2.gif" width="12" height="12"></p><p>Examples of redirectors are:</p><ul type="disc"><li>Apple File Protocol</li><li>NetBIOS Extended User Interface (NetBEUI)</li><li>Novell IPX/SPX protocols</li><li>Network File System (NFS) of the TCP/IP protocol suite</li></ul><p>The redirector process is as follows:</p><ol><li>The client requests that the network file server allow the data file to be stored.</li><li>The server responds by saving the file to its disk, or by rejecting the client's request.</li><li>If the client requests that the network print server allow the data file to be printed by a remote (network) printer, the server processes the request by printing the file on one of its print devices, or by rejecting the request.</li></ol><p>The redirector allows a network administrator to assign remote resources to logical names on the local client. When you select one of these logical names to perform an operation such as saving a file, or printing a file, the network redirector sends the selected file to the proper remote resource on the network for processing. If the resource is on a local computer, the redirector ignores the request and allows the local operating system to process the request.<img border="0" src="../../../../../CHAPID=knet-v214aCH47515/RLOID=knet-v214aRLO48007/RIOID=knet-v214aRIO124715/knet/v214adataimage3/3.gif" width="12" height="12"></p><p>The advantage of using a network redirector on a local client is that the applications on the client never have to recognize the network. In addition, the application that requests service is located on the local computer and the redirector reroutes the request to the proper network resource, while the application treats it as a local request.</p><p>Redirectors expand the capabilities of non-network software. They also allow users to share documents, templates, databases, printers, and many other resource types, without having to use special application software.</p><p>Networking has had a great influence on the development of programs like word processors, spreadsheets, presentation managers, database programs, graphics, and productivity software. Many of these software packages are now network-integrated or network-aware. They have the capabilities of launching integrated Web browsers or Internet tools, and of publishing their output to HTML for easy Web integration.</p><table cellpadding="0" cellspacing="4" width="63%" border="0" xmlns:java="http://xml.apache.org/xslt/java"> <tr> <td valign="middle" width="8%"><img height="23" width="23" src="../../../../../images/ccna/common/icon2.gif"></td><td valign="middle" width="92%"><span class="cstitle">Web Links</span></td> </tr> <tr> <td valign="middle" width="8%"> </td><td valign="middle" width="92%"><span class="smtext"><a target="_blank" href="http://www.mcseinfo.com/mcse/mirror/nt-herb-111.htm">Redirectors</a></span></td> </tr> </table></td> </tr> </table> </td> </tr></table> <p> </p> <table width="100%" cellspacing="0" cellpadding="2" border="0" valign="bottom"> <tr> <td></td> </tr> </table> </body></html>⌨️ 快捷键说明
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