Configuring and Managing MPE/iX Internet Services (MPE/iX 6.5)

230
T
TAC Telnet Access Card. A board within a
DTC 48 or 72MX.
TCP/IP Transmission Control
Protocol/Internet Protocol. A set of rules
that establishes and maintains connections
between nodes on an internetwork. TCP/IP
regulates the flow of data, breaks messages
into smaller fragments if necessary (and
reassembles the fragments at the
destination), detects errors, and
retransmits messages if errors have been
detected.
TEB Telnet Express Box. An HP product
consisting of a DTC dedicated to providing
protocol conversion between Telnet on
TCP/IP and AFCP to allow incoming calls
from the Internet Services environment to
HP 3000 systems.
Telnet The application protocol offering
virtual terminal service in the Internet
suite of protocols developed by the
Advanced Research Projects Agency
(ARPA).
TELNET.ARPA.SYS A file that contains
the Telnet client program.
TELNTDOC.ARPA.SYS The readme file
for the Telnet client program.
TFTP TrivialFileTransfer Protocol, TFTP,
a set of rules used to read and write files to
or from a remote system.
U
UDP User Datagram Protocol, a set of
rules used to send connectionless messages
called
datagrams between systems. UDP
requires much less overhead than a
protocol such as TCP because it does not
require acknowledgement from the
recipient that the message reached its
destination.
V
Virtual Terminal A network service that
allows a user to establish interactive
sessions on a node.
W
WAN Wide Area Network. A data
communications network of unlimited size,
used for connecting localities, cities, and
countries.
well-known address The port number
that identifies the specific user process of
an available and commonly-used Internet
Service. For example, the port number for
the File Transfer Protocol (FTP) is 21.
X
X.25 Defines the interface between a DTE
and a DCE for packet mode operation on a
public data network (PDN).