Using the Node Management Services (NMS) Utilities (32022-90053)

304 Glossary
Glossary
direct-connect device
Asynchronous device that is
connected directly to a DTC
through an RS-232-C or RS-422
cable, with no intervening
communications equipment. Also
referred to as a “local connection.”
direct connection Aleasedline,
private line, or other
non-switched link in a network.
direct dial A dial link through
which only one remote node can
be reached.
direct-path branching The
process of directly accessing any
screen in NMMGR by entering
path names in the Command:
field. The path name must be
preceded by an at sign (@).
domain name A name
designated for a system in
ARPANET standard format. This
name can be used by other nodes
on the network to access the host
for which it is configured.
download The process ofloading
operating code and configuration
files into the DTC’s memory. The
DTC is downloaded by the host
computer for LANs using
host-basednetworkmanagement,
and by the PC for DTCs managed
by the OpenView DTC Manager.
driver See device driver.
DTC Datacommunications and
Terminal Controller. The DTC is
a hardware device, configured as
a node on a LAN, that enables
asynchronous devices to access
HP 3000 Series 900 computers.
Terminals can either be directly
connected to the DTC, or they can
be remotely connected through
modem or through a Packet
Assembler Disassembler (PAD).
DTC identifier An identifier
used only within NMMGR to
define the branch of the
configuration file containing
information about a particular
DTC. The identifier must begin
with a letter and can be up to
eight characters long
DTC Manager See OpenView
DTC Manager.
DTC node name Unique name
used to identify a DTC on the
LAN. Node name format is
nodename.domain.organization,
with each of the three parts
having up to 16 characters and
beginning with either a letter or a
digit.
DTC station address (802.3
address) 12-digit hexadecimal
number used to identify the DTC
as a node belonging to the
networkconfiguration.Alsocalled
the LAN address.
DTC switching A facility
enabling terminal users to select
any host system that they want to
connect to. DTC switching is
available only when the
OpenView DTC Manager is used
for network management.