NetIPC 3000/XL Programmer's Reference Manual (5958-8600)

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transmitter. As a result, fast
transmission speeds (above 9600
bps) are attainable.
system configuration The way
you tell MPE XL what peripheral
I/O devices are attached to the
DTC and what parameters are
required for system operation.
T
TCP SeeTransmissionControl
Protocol
ThinLAN 3000/XL A LAN that
conforms to the IEEE 802.3 Type
10 BASE 2 standard LAN.
throughput class A value
assigned to a given virtual circuit
that defines how many network
resources should be assigned to a
given call. It is determined by the
access line speed, packet and
window sizes, and the local
network's internal mechanisms.
throughput class negotiation
One of the Network Subscribed
Facilities defined at subscription
time. This allows the user to
negotiate the Throughput Class
at call set-up time.
timer (T3) Length of time that a
link can remain in an idle state.
After the expiration of the timer,
the link is considered to be in a
non-active, non-operational state
and is automatically reset. The
value should be chosen carefully.
In particular, it must be
sufficiently greater than the
Retransmission Timer (T1) so
that there is no doubt about the
link's state.
topology The physical
arrangement of nodes in a
network. Some common
topologies are bus, star, and ring.
Transmission Control
Protocol TCP. A network
protocol that establishes and
maintains connections between
nodes. TCP 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.
transparent mode Data
transfer scheme in which only a
limited number of special
characters retain their meaning
and are acted on by the system.
All other characters are
considered to be data and are
passed through with no control
actions being taken.
transport, network Software
that corresponds to layers 4 and 3
of the OSI network architecture
model. The function of this
software is to send data out over
the appropriate communications
link, to receive incoming data,
and to route incoming or outgoing
data to the appropriate
destination node.