NS3000/iX NMMGR Screens Reference Manual - Edition 9 (36922-90040)

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workstation under MS Windows, that acts
as the platform for all OpenView
applications, such as DTC Manager.
OpenView Windows Workstation The
personal computer that provides software
downloads to enable operation of the
Datacommunications and Terminal
Controller (DTC). The configuration
software that runs on this workstation is
called the OpenView DTC Manager
software.
OSI model Open Systems Interconnection
model. A model of network architecture
devised by the International Standards
Organization (ISO). The OSI model defines
seven layers of a network architecture with
each layer performing specified functions.
P
packet A block of data whose maximum
length is fixed. The unit of information
exchanged by X.25 at Level 3. The types of
packets are DATA packets and various
control packets. A packet type is identified
by the encoding of its header.
packet exchange protocol PXP. A
transport layer protocol used in NS 3000/iX
links to initially establish communication
between nodes when NetIPC socket
registry is used.
packet-switched network name The
name of a data communication network
adhering to the CCITT X.25
recommendation. This can be a PDN or a
private network such as the HP PPN.
PAD (Packet Assembler/Disassembler
A device that converts asynchronous
character streams into packets that can be
transmitted over a packet switching
network (PSN).
PAD name A name of up to eight
characters that is associated with a
configured PAD device. The PAD name is
known to both the DTC and the host
systems that the device can access.
PAD profile A terminal or printer profile
that specifies the configuration
characteristics for PAD-connected devices.
partner gateway half When gateway
halves are used, two gateway halves are
required in order to provide communication
between two networks. Each is the partner
of the other.
path name When configuring with
NMMGR, you can type a string in the
COMMAND: field on a screen to branch to
another screen. Each screen has a unique
path name that corresponds to its location
in the hierarchy of configuration screens
presented by NMMGR.
PDN Public data network. A data
communication network whose services are
available to any user willing to pay for
them. Most PDNs use packet switching
techniques.
point-to-point A link that connects either
two nodes in a NS Point-to-Point 3000/iX
network or two gateway halves.
port An outlet through which a device can
be connected to a computer, consisting of a
physical connection point and controlling
hardware, controlling software, and
configurable port characteristics. Ports can
be thought of as data paths through which
a device communicates with the computer.
Precision Architecture The hardware
design structure for the HP e3000
computer family.
printer name A character string of up to
16 characters specified in the DTC
Manager configuration (for networks using
OpenView Network Management) to define
a printer by name. Can be shared by
several printers (port pool).