Glossary
GL-2
6700-A2-GB22-20
February 1998
Data Service Unit. Data communications equipment that transmits digital data over a
private line. Also used for limited distance communications over the PSTN when a
high-speed modem is not needed.
Electronic Industries Association. This organization provides standards for the data
communications industry to ensure uniformity of interface between DTEs and DCEs.
A type of network that supports high-speed communication among systems. It is a
10 Mbps standard for LANs. All hosts are connected to a coaxial cable where they contend
for network access using a Carrier Sense Multiple Access with Collision Detection
(CSMA/CD) paradigm.
A six-part hexadecimal number in which a colon separates each part (for example,
8:0:20:1:2f:0). This number identifies the Ethernet communications board installed in a PC
and is used to identify the PC as a member of the network.
Export is the process that makes a file available so that other systems can access it.
File access allows users to work with a remote file as if the file is local.
A process running on a computer that provides access to files on that computer to
programs running on remote machines.
File Transfer Protocol. A TCP/IP standard protocol that allows a user on one host to
access and transfer files to and from another host over a network, provided that the client
supplies a login identifier and password to the server.
A communications device/program that passes data between networks having similar
functions but dissimilar implementations.
A unique number associated with each group name on the server.
A computer attached to a network that shares its information and devices with the rest of
the network.
Internet Control Message Protocol. Internet protocol that allows for the generation of error
messages, test packets, and information messages related to IP.
Worldwide interconnected networks that predominantly use the TCP/IP protocol. The
Internet is a three level hierarchy composed of backbone networks, mid-level networks,
and stub networks.
An Internet protocol address that uniquely identifies a node on an internet.
Internet Protocol. An open networking protocol used for Internet packet delivery.
Internet Protocol address. The address assigned to an Internet host.
Local Area Network. A privately owned and administered data communications network
limited to a small geographic area.
A software program housed within a network management station. The manager has the
ability to query agents, receive agent responses, and set specific variables using various
SNMP commands.
Management Information Base. A database of managed objects used by SNMP to provide
network management information and device control. In theory, any SNMP manager can
communicate with any SNMP agent with a properly defined MIB.
Network Driver Interface Specification. Used for all communication with network adapters.
The specification was developed by Microsoft and 3COM to provide a common
programming interface for MAC drivers and transport drivers. NDIS works primarily with
LAN Manager and allows multiple protocol stacks to share a single network interface card.
DSU
EIA
Ethernet
Ethernet address
export
file access
file server
FTP
gateway
group id
host
ICMP
Internet
Internet address
IP
IP address
LAN
manager
MIB
NDIS
