SNAX/XF LU Network Services Manual

Glossary
097841 Tandem Computers Incorporated Glossary–9
TAL. Transaction Application Language.
TC. Transmission control (one of the SNA functional layers).
TCP. Terminal control process.
token. A distinguishable unit in an SPI message. A token has two parts: an identifying
code, or token code, and a token value. In command and response messages, a token
normally represents a parameter to a command, an item of information in a response,
or control information for the subsystem. In event messages, a token normally
represents an item of information about an event or about the event message itself.
TS. Transmission subsystem; also transmission services.
UNBIND. An SNA command that deactivates a session between two logical units.
VTAM. Virtual Telecommunications Access Method.
X.25. A CCITT recommendation for the interface between data terminal equipment
and packet-switching networks; it is also referred to as Recommendation X.25.
XID. Exchange identification.