IBM 8239 Token-Ring Stackable Hub, Setup And User Manual

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instructions are sufficient to bring the rest of itself into
the computer from an input device. (A)
C
client. (1) A functional unit that receives shared
services from a server. (T)
(2) A user.
client/server. In communications, the model of
interaction in distributed data processing in which a
program at one site sends a request to a program at
another site and awaits a response. The requesting
program is called a client; the answering program is
called a server.
community. In the Simple Network Management
Protocol (SNMP), an administrative relationship
between entities.
community name. In the Simple Network
Management Protocol (SNMP), a string of octets
identifying a community.
concentrator. A single-protocol networking device,
such as the 8239.
Configuration Report Server. A function of the
token-ring manager that accepts commands to get
station information, set station parameters, and remove
stations on its ring. It also collects and forwards
configuration reports generated by station on its ring to
the LAN manager.
CRS. Configuration Report Server.
D
default. Pertaining to an attribute, condition, value, or
option that is assumed when none is explicitly
specified. (I)
E
EIA 232. In data communication, a specification of the
Electronic Industries Association (EIA) that defines the
interface between data terminal equipment (DTE) and
data circuit-terminating equipment (DCE), using serial
binary data interchange.
Electronic Industries Association (EIA). An
organization of electronics manufacturers that advances
the technological growth of the industry, represents the
views of its members, and develops industry standards.
H
hub. A multiprotocol-networking device that can
contain modules supporting concentrators, bridges,
routers, and so on, such as the 8239. A hub is also
referred to as a
stack unit.
HyperText Markup Language (HTML). A markup
language that is specified by an SGML document type
definition (DTD) and that is understood by all World
Wide Web servers.
I
in-band. The ability to manage an 8239 remotely by
communicating over the token-ring data network.
internet. A collection of networks interconnected by a
set of routers that allow them to function as a single,
large network. See also
Internet.
Internet. The internet administered by the Internet
Architecture Board (IAB), consisting of large national
backbone networks and many regional and campus
networks all over the world. The Internet uses the
Internet suite of protocols.
Internet address. See IP address.
Internet Protocol (IP). A connectionless protocol that
routes data through a network or interconnected
networks. IP acts as an intermediary between the
higher protocol layers and the physical network.
However, this protocol does not provide error recovery
and flow control and does not guarantee the reliability of
the physical network.
IP address. The 32-bit address defined by the Internet
Protocol, standard 5, Request for Comments (RFC)
791. It is usually represented in dotted decimal notation.
L
LCD. Liquid crystal display.
LED. Light emitting diode
link-attached. (1) Pertaining to devices that are
connected to a controlling unit by a data link.
(2) Synonymous with
remote.
local. (1) Pertaining to a device accessed directly
without use of a telecommunication line. (2) Contrast
with
remote.
X-2
8239 Setup and User’s Guide