49 lines
3.3 KiB
HTML
49 lines
3.3 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="Enabling application switchover across subnets" />
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<meta name="abstract" content="Clustering in general requires that all cluster nodes in the recovery domain of an application cluster resource group reside on the same LAN (use the same subnet addressing)." />
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<meta name="description" content="Clustering in general requires that all cluster nodes in the recovery domain of an application cluster resource group reside on the same LAN (use the same subnet addressing)." />
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<meta name="DC.Relation" scheme="URI" content="rzaigconfigipaddrressapp.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="rzaigconfigdualsubnettakeover" />
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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>Enabling application switchover across subnets</title>
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</head>
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<body id="rzaigconfigdualsubnettakeover"><a name="rzaigconfigdualsubnettakeover"><!-- --></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">Enabling application switchover across subnets</h1>
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<div><p>Clustering in general requires that all cluster nodes in the recovery
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domain of an application cluster resource group reside on the same LAN (use
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the same subnet addressing).</p>
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<p>The underlying network protocol used to achieve the switching of the configured
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application takeover IP address from one node in the recovery domain to another
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is the Address Resolution Protocol (ARP). However, it is possible to extend
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the recovery domain to include cluster nodes that reside on other LANs separated
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by commercial routers.</p>
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<p>This extension is possible through the use of Virtual IP address support
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and making use of the Routing Information Protocol (RIP) on the cluster nodes
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and the commercial routers in the network. See <a href="rzaigapplicationswitchover2.htm">Enabling application switchover</a> for more details.</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="rzaigconfigipaddrressapp.htm" title="Manage application CRG takeover IP addresses using cluster resource services. You can also manage them manually.">Manage application CRG takeover IP addresses</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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