InfoCenter Home > 7.1.3.8: Multiple WebSphere domains sample topologyOverviewThe following figure shows an example of how an application can be implemented over multiple WebSphere Application Server administrative domains. The example application runs simultaneously in two administrative domains, each hosted on a different physical machine (Machines A and B). Network Dispatcher is used to distribute incoming HTTP requests among the two domains, presenting a single image of the application to clients. A backup Network Dispatcher node provides failover support. In this example, the application server clones in both domains are created from the same model so that identical versions of the application run in each domain. However, you can run a different version of the application in each domain. Because the domains are isolated from one another, you can also run different versions of the WebSphere Application Server software in each domain. In this example, both domains share a common application database. However, each domain is administered independently and maintains a separate administrative repository. Typical useTopologies that incorporate more than one administrative domain have the following advantages:
Using multiple domains has several drawbacks:
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