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G
gateway. A device and its associated software that
interconnect networks or systems of different
architectures. The connection is usually made above
the reference model network layer. For example, a
gateway allows LANs access to System/370 host
computers. Contrast with
bridge and router.
H
hardware. Physical equipment as opposed to
programs, procedures, rules, and associated
documentation. (I) (A)
header. The portion of a message that contains
control information for the message such as one or
more destination fields, name of the originating station,
input sequence number, character string indicating the
type of message, and priority level for the message.
host computer. (1) The primary or controlling
computer in a multi-computer installation or network.
(2) In a network, a processing unit in which resides a
network access method. Synonymous with
host
processor.
I
ILMI. Interim Local Management Interface.
InARP. Inverse Address Resolution Protocol.
interface. (1) A shared boundary between two
functional units, defined by functional characteristics,
signal characteristics, or other characteristics, as
appropriate. The concept includes the specification of
the connection of two devices having different functions.
(T)
(2) Hardware, software, or both, that links
systems, programs, or devices.
internal reachable address. An address of a
destination that is directly attached to the logical node
advertising the address.
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). (1) A protocol that routes data
through a network or interconnected networks. IP acts
as an interface between the higher logical layers and
the physical network. This protocol, however, does not
provide error recovery, flow control, or guarantee the
reliability of the physical network. IP is a connectionless
protocol. (2) A protocol used to route data from its
source to its destination in an Internet environment.
interoperability. The capability to communicate,
execute programs, or transfer data among various
functional units in a way that requires the user to have
little or no knowledge of the unique characteristics of
those units. (T)
Inverse Address Resolution Protocol (InARP). A
protocol for converting a physical network address (for
example, an ATM address) into a higher level protocol
address (for example, an IP address).
IP. Internet Protocol.
IP address. The 32-bit address defined by the Internet
Protocol, standard 5, Request for Comment (RFC) 791.
It is usually represented in dotted decimal notation.
K
Kbps. Kilobits per second.
kilobit (Kb). (1) For processor storage, real and virtual
storage, and channel volume, 2
10
or 1024 bits. (2) For
disk storage capacity and communications volume,
1000 bits.
kilobyte (KB). (1) For processor storage, real and
virtual storage, and channel volume, 2
10
or 1024 bytes.
(2) For disk storage capacity and communications
volume, 1000 bytes.
L
LAN. Local area network.
LE. LAN Emulation.
LAN emulation. A set of services, functional groups
and protocols which provide for the emulation of LANs
utilizing ATM as a backbone to allow connectivity
among LAN and ATM attached end stations.
LEC. LAN Emulation Client.
LAN emulation client (LEC). The entity in end
systems which performs data forwarding, address
resolution, and other control functions.
LECS. LAN Emulation Configuration Server.
LAN emulation configuration server (LECS). This
implements the policy controlled assignment of
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IBM 8265: User's Guide
Summary of Contents for 8265 Nways ATM Switch
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