| 摘要 |
A node configured for use in a communication network with a distributed architecture. The node comprises a key encryption functionality, a transceiving functionality for transmitting and receiving packets, a privilege level introduction functionality configured to introduce a privilege level into packets to be transmitted, and a comparison functionality configured to compare a privilege level of received packets with a privilege level assigned to a second node from which these packets are received, wherein these packets are dropped, if they violate the privilege level of said second node.
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