23.InstallationThis chapter contains the following topics:• “Overview” (page 23)• “Nonredundant and redundant server implementations” (page 23)• “Software installation” (page 24)Overview After you complete the preinstallation tasks, you install the Nortel MobileCommunication Gateway 3100 (MCG 3100) software in a nonredundantor redundant server implementation. During the MCG 3100 softwareinstallation, a number of prompts appear. You can accept the defaultvalue, or enter a new value at each prompt.Nonredundant and redundant server implementationsFor a nonredundant server implementation, install the software on astandalone server. For a redundant server implementation, install thesoftware on two servers.ATTENTIONYou must install the license file on each of the servers in a redundantimplementation.Nonredundant server optionA nonredundant (or standalone) server implementation does not provideredundancy and therefore provides no failover protection. If a servercomponent fails or becomes inaccessible, the mobile clients are deniedaccess until the server recovers.Redundant server optionA redundant server implementation provides high availability. If an activeserver component fails or becomes inaccessible, the mobile clients canrestart a communication session with the backup server.Nortel Mobile Communication 3100 Series PortfolioNortel Mobile Communication Gateway 3100 Installation and UpgradesNN42030-300 02.03 Standard9 May 2008Copyright © 2007, 2008 Nortel Networks.