A class of IBM Systems Network Architecture terminal and related protocol used to communicate with IBM mainframe host systems.
An encrypting algorithm that processes each data block three times, using a unique key each time. 3DES is much more difficult to break than straight DES. It is the most secure of the DES combinations, and is therefore slower in performance. See also Data Encryption Standard (DES).
A class of IBM Systems Network Architecture terminal and related protocol used to communicate with AS/400 host systems.
A protocol that supports the mapping of Resource Reservation Protocol (RSVP) signals to Layer 2 signals by using 802.1p priority markings to enable the prioritization of traffic across Layer 2 devices, such as switches, on a network segment. IEEE 802 refers to the Layer 2 technology used by LANs including the data-link layer and the media access control layer.
A tape cartridge format used for data backups, similar to that used for some video cameras except that the tape is rated for data storage. The capacity is 5 GB or more of (optionally compressed) data.