Trusted Extensions labels network communications. Data flows are restricted based on a comparison of the labels associated with the originating network endpoint and the receiving network endpoint. Gateways and in-between hops must also be labeled to allow the passage of information at the label of the communication. NFS and multilevel ZFS datasets provide additional features on a network.
For more information, see the following:
Chapter 15, Trusted Networking, in Trusted Extensions Configuration and Administration