Using the Node Management Services (NMS) Utilities (32022-90053)
Glossary 307
Glossary
flow control A means of
regulating the rate at which data
transfer takes place between
devices to protect against data
overruns.
flow control negotiation One
of the network subscribed
facilities, selected at subscription
time. This facility allows the flow
control parameter to be
negotiated at call set-up time, as
opposed to having a predefined
value.
formal file designator Name
that can be used
programmatically or in a file
equation to refer to a file.
FOS Fundamental operating
system. The programs, utilities,
and subsystems supplied on the
master installation tape that
form the basic core of the
operating system.
full gateway A full gateway is a
node that belongs to more than
one network and has one IP
address for each network. It uses
store and forward to transfer
packets between each network
that it belongs to.
G
gateway A node that connects
two dissimilar network
architectures. A gateway can be
either a single node (full gateway)
or two gateway halves.
gateway half A node that works
in conjunction with another node
on another network to form an
internetwork. The only protocol
used by gateway halves is the NS
Point-to-Point 3000/iX Link. See
also full gateway.
gateway-half link A link
between the two nodes of a
gateway-half pair. Eachofthe two
nodes of a gateway-half pair hasa
configured link (hardware
interface card) that is used for the
gateway half network interface.
The NS Point-to-Point 3000/iX
Link is the only link that can be
used as a gateway-half link.
gateway-half pair A set of two
nodes that are joined by a
gateway-half link. Each node in
the pair must have a
gateway-half network interface
configured, using the link.
guided configuration Amethod
of configuring a node in which a
subset of the complete NMMGR
interface is presented and
defaults of configurable values
are used automatically.
H
handshaking Acommunications
protocol between devices or
between a device and the CPU.
Provides a method of determining
that each end of a
communications link is ready to
transmit or receive data and that
transmission has occurred
without error.