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Alternative WSUS Deployment Models
Beyond the simple single server implementation used in the Hosted Messaging and Collaboration Deployment Walkthrough, Microsoft Windows Server Update Services (WSUS) offers other implementation opportunities. For more information on the following deployment options, see Deploying Windows Server Update Services.
Multiple Server Model
The multiple server model, also known as the chained update servers configuration, shown in the following figure, is useful for many types of deployments. Some of the ways you can use this configuration are to:
- Download updates once from the Internet and then distribute those updates to branch offices that have downstream servers, saving bandwidth on your Internet connection
- Scale WSUS in a large organization with more client computers than one WSUS server can service
- Move updates closer to the edge of your network, where they will be deployed
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Figure: Multiple server model
Disconnected Networks Model
The flexible architecture of WSUS enables WSUS-based update management to function in environments where clients or network segments are totally disconnected from the Internet, as shown in the following figure.
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Figure: Disconnected networks model