Importance

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Abstract

A network topology is described which supports the peer-to-peer storage of user-generated applications data at multiple nodes in a virtual private network. In one embodiment, the network supports Application Service Provider applications. In one embodiment, user data is redundantly stored at multiple locations. If a user logs-in to a location which does not store the user's data, the network automatically causes that data to be downloaded from another node. In one embodiment, data is stored in a hierarchical file structure which allows the isolation of data on an application, user or enterprise basis, with access to data being governed by mechanisms which limit the ability of a user or application to gain access to data generated by other users or other applications. In one embodiment, data is synchronized between nodes whenever a user changes data at one node, by causing the data to be downloaded from that node to all other nodes holding the user's data. In one embodiment, the network includes means to insure that certain critical fields contain the same value across nodes.

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First Claim