
GLOSSARY
Glossary-4 Norand
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Management Information Bases Reference Manual
IGP (Interior Gateway Protocol)
A protocol, such as RIP or OSPF, used within an autonomous system. Contrast
with EGP, which is used between autonomous systems. See also: EGP, RIP.
Integrated Gateway/Access Point (IGAP)
Operates as a wired bridge or a wireless access point. Connects to or coexists
with existing wired LANs that conform to ASNI/IEEE 802.3 and DIX Ethernet
specifications. In current usage, gateway" and application gateway" refer to
translating systems that convert data traveling from one environment to
another.
internet
While a network, internet" usually refers to a collection of networks
interconnected with routers. See also: network.
Internet
(Note the capital I".) The world's largest internet, including large national
backbone nets (such as MILNET, NSFNET, and CREN) and many regional and
local networks worldĆwide. The Internet uses the TCP/IP suite. Networks with
only Email connectivity are not considered on the Internet.
IP (Internet Protocol)
The network layer for the TCP/IP Protocol Suite. It is a connectionless,
bestĆeffort packet switching protocol that offers a common layer over dissimilar
networks.
IP Address
An IP defined 32Ćbit address usually in dotted decimal notation. See also: dot
address, IP, network address, subnet address, host address.
IPX (Internetwork Packet eXchange)
A protocol derived from XNS and used by Novell's NetWare. A router with IPX
routing can interconnect LANs for Novell NetWare clients and servers to
communicate. IPX provides a best effort" delivery service and is equivalent to
TCP/IP's IP. See also: LAN.
ISO (International Organization for Standardization)
A voluntary, nontreaty organization founded in 1946 responsible for creating
international standards. See also: ANSI, OSI.
LAN (Local Area Network)
A group of network devices in which each device can communicate through a
wired or wireless link. The wired link may have several segments joined by
repeaters and bridges. The LAN is characterized by the relatively short distance
it is designed to cover, a high speed of operation, and relatively low error rates.
The geographic scope of LANs is limited to thousands of feet or closelyĆspaced
building complexes.
Layer
A modular portion of a stacked protocol that consists of one or more
semiĆindependent protocols. Each layer builds on the layer beneath it and feeds
information to the protocols in the layers above it. TCP/IP has five layers of
protocols, and OSI has seven.