Directory-enabled networking (DEN) allows for policy-based management of networks, using directories as the underlying repository of policy and network information. The directory has a special role to play in directory-enabled networking. It serves as the central location for storing policies, profiles, user information, network configuration data, and Internet Protocol (IP) infrastructure data such as network addresses and name server information. Policy information includes a deterministic set of policy rules, structured as conditions and actions, for managing resources in the context of a specific policy discipline, such as remote dial-up access, quality of service (QoS), or security. User information typically includes not only user profiles but also authentication and authorization data (access rights). The format of data stored in the directory is formalized according to schemas that are in principle derived from standard schemas published as part of the DEN specification by the Distributed Management Task Force (DMTF).
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