See transparency.

See network topology.

The subnetwork formed by an association of interconnected Trusted Network Interface Units and one or more Access control Systems [CESG]. See also Trusted Network Interface Unit below.

TNET (see Trusted Network above) will be realized by the development of a number of components including the TNIU and ACS. The TNIU is located between the end system and the network that provides separation, integrity, access control and authentication services by means of encryption across the network and supports the operation of the TNIUs by providing them with the… (Read More →)

1. The point of demarcation between a common carrier's facilities and customer's installation, which demarcation establishes both the technical interface and the division of operational responsibility. In this context, "customer" refers to the end-user. [J. Beaty FAA]
2. The term used to refer to the network interface (NI) as well as to interfaces within the customer installation (CI). [T1.640-1996]

A network using the communication services of other commercial carriers, using hardware and software that permit enhanced telecommunication services to be offered.

A computer network using internetworks as data links that are transparent for users and that do not have restrictions on protocols, so that the network has the characteristics of a local area network.
Note: Data links over internetworks often use tunneling. [2382-pt.35]

A network that provides virtual circuits and that is established by using the facilities of a real network.

[A] protected information-system (IS) link utilizing tunneling, security controls (see information assurance), and end-point address translation giving the user the impression a dedicated line exists between nodes. [INFOSEC-99]

A network having a loss that varies with frequency in a predetermined manner, and which network is used for improving or correcting transmission characteristics, or for characterizing noise measurements.