CRC

Cyclic Redundancy Check. An error detection scheme in which a receiver checks each block of data for errors.

CTS

Clear To Send. A signal sent from the port device to the access server to indicate that the port device is ready to receive data.

Cyclic Redundancy Check

See CRC.

datagram

See IP datagram.

Data Set Ready

See DSR.

Data Terminal Ready

See Data Terminal Ready.

data transparency

During a session, the access server normally intercepts and interprets switch characters and flow control characters. Users can enable data transparency, causing these characters to become transparent to the access server. The access server will not intercept them while they are being exchanged in the user’s current session, such as during a file transfer or during a block-mode transfer (where the terminal sends a screen of data to the host application).

DECnet

The DIGITAL networking software that uses the DIGITAL Network Architecture (DNA) on both local area networks (LANs) and wide area networks (WANs).

DECnet node address

A unique numeric identification required for each DECnet node, assigned by the network manager. The address is in the form aa.nnnn, where aa is an optional area number (from 2 to 63), and nnnn is the node address (from 1 to 1023).

DECnet node name

Aunique 1- to 6-character alphanumeric identification (including at least one alphabetic character) required for each DECnet node assigned by the network manager.

dedicated service

A network resource to which a port is permanently assigned and to which the port is always connected at login, thus emulating a hardwired connection.

Glossary-4