Configuring and Managing Host-Based X.25 Links - Edition 6 (36939-90057)
Glossary
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Glossary
access port A special interface card in the system
cabinet through which the system console is
connected.
address A numerical identifier defined and used by
a particular protocol and associated software to
distinguish one node from another.
address key See X.25 address key.
address resolution In NS networks, the mapping
of node names to IP addresses and the mapping of IP
addresses to subnet addresses.
address resolution protocol ARP. A protocol used
by LAN links with Ethernet enabled that provides a
means of exchanging addressing information
between Ethernet nodes.
adjacent A node on a point-to-point network that is
connected to another node by a single link with no
intervening nodes.
ARPA Advanced Research Projects Agency. It is the
former name of the Defense Advanced Research
Project Agency (DARPA). The Internet suite of
protocols was developed under ARPA guidance.
ARPA Telnet Access An HP product which is a
board that can be installed in a DTC 48 and
DTC 72MX. The Telnet Access board performs
protocol translation. Calls to the IP address of an
MPE/iX system are detected by the Telnet Access
board and are retransmitted on the LAN using
AFCP, allowing connections from terminals on ARPA
systems to HP 3000s.
APRA Telnet Express An HP product which is a
standalone hardware platform dedicated to
performing protocol translation. Calls to the IP
address of an MPE/iX system are detected by the
Telnet Express and are retransmitted on the LAN
using AFCP, allowing connections from terminals on
ARPA systems to HP 3000s.
ARPANET The (Advanced Research Projects
Agency) computer network.
ASCII American National Standard Code for
Information Interchange. A character set using 7-bit
code used for information interchange among data
processing and data communications systems. The
American implementation of International Alphabet
No. 5.
asynchronous Term used to describe a device’s
mode of operation whereby a sequence of operations
are executed irrespective of time coincidence with
any event. Devices that are directly accessible by
people (for example, terminal keyboards) operate in
this manner.
asynchronous processor board The new 24-port
mux board for the DTC 72MX. Allows up to 24 direct
and modem connections per board. A DTC 72MX can
have up to 3 asynchronous processor boards (for a
total of 72 connections).
attachment unit interface The cable that runs
between each node (host, DTC, or other device) and
the Medium Attachment Unit (MAU) that connects
it to the LAN in a ThickLAN configuration.
AUI See attachment unit interface.
autodial A dial link in which the remote node’s
telephone number is automatically dialed by a
modem or other device with this capability.
automatic configuration The addition and
configuration of a host-based managed DTC to the
HP 3000 system without needing to specify detailed
configuration information such as DTC cards/boards
and ldevs.
backbone LAN A thick LAN cable conforming to
the IEEE 802.3 Type 10 BASE 5 standard.
back-to-back configuration A DTC configuration
whereby MPE users connected to one DTC can
communicate with a non-MPE/iX system connected
to another DTC via the LAN. (See also Local
Switching)
backup configuration file A file that contains a
copy of the information contained in the
configuration file. The backup file, called
NMCBACK.
group
.
account
by default, is updated
each time the configuration file is successfully
validated.
banner A welcome message displayed on your
screen. On the local OpenView workstation a banner
appears when a remote connection is established
with the OpenView DTC Manager. A banner also can
appear when you log on to MPE.