Glossary
Called DLS user The DLS user in connection mode that processes requests for connections from other DLS users.
Calling DLS user The DLS user in connection mode that initiates the establishment of a data link connection.
Communication endpoint
The local communication channel between a DLS user and DLS provider.
Connection establishment
The phase in connection mode that enables two DLS users to create a data link connections between them.
Connectionless mode A mode of transfer in which data is passed from one user to another in
Connection mode A circuit- oriented mode of transfer in which data is passed from one user to another over an
established connection in a sequenced manner.
Connection release The phase in connection mode that terminates a previously established data link connection.
Data link service data unit A grouping of DLS user data whose boundaries are preserved from one end of a data link connection to the other.
Data transfer The phase in connection and connectionless mode that supports the transfer of data between two DLS users.
DLSAP A point at which a DLS user attached itself to a DLS provider to access data link services.
DLSAP address An identifier used to differentiate and locate specific DLS user access points to a DLS provider.
DLS provider The data link layer protocol that provides the services of the Data Link
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