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Voyager Reference Guide 677
performs the same calculation and compare its result to the attached value. If
they do not match, a transmission error is returned with a retransmission
request.
CSU/DSU
Channel Service Unit/Data Service Unit. A service that connects an
external digital circuit to a digital circuit on a customer's premises. The DSU
converts data into the correct format, and the CSU terminates the line,
conditions the signal, and participates in remote testing of the connection.
DES
Data Encryption Standard. A 56-bit, U.S. National Bureau of Standard
method of data encryption. It's limited to 40 bits outside of U.S.
DCE
Data Communications Equipment . Switching equipment that forms a
packet-switched network, versus computers or terminals connected to the
network. See DTE.
DHCP
Dynamic Host Configuration Protocol. A protocol that is used to lessen the
administrative burden of manually configuring TCP/IP hosts on a network.
DLCI
Data Link Connection Identifier. A frame relay value that identifies a
logical connection.
DTE
Data Terminal Equipment. A terminal or computer that functions as a
source or destination of network communication; end-user equipment. See
DCE.