| 摘要 |
Arranging switching nodes of a distributed telecommunication system into authentication hierarchical structures with respect to authentication information. If the authentication information is stored on a switching node within the authentication hierarchical structure, all switching nodes in that authentication hierarchical structure can access the authentication information. An authentication hierarchical structure allows any switching node that is part of the authentication hierarchical structure to obtain the authentication information from another switching node within the authentication hierarchical structure if another switching node has the authentication information. Only one switching node is required to retain the authentication information within a given authentication hierarchical structure.
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