Glossary
Host:
Generally a node on a network that can be used interactively, i.e., logged into, like a computer.
Host Table:
A list of TCP/IP hosts on the network along with their IP addresses.
IEEE 802.3:
The IEEE (Institute of Electrical and Electronic Engineers) standard that defines the CSMA/CD
media-access method and the physical and data link layer specifications of a local area network.
Among others, it includes 10BASE2, 10BASE5, 10BASE-FL and 10BASE-T Ethernet
implementations.
Internet:
A series of interconnected local, regional, national and international networks, linked using TCP/IP.
Internet links many government, university and research sites. It provides E-mail, remote login and
file transfer services.
Internetworking:
General term used to describe the industry composed of products and technologies used to link
networks together.
IP Address:
See Network Address.
ISO Layered Model:
The International Standards Organization (ISO) sets standards for computers and communications.
Its Open Systems Interconnection (OSI) reference model specifies how dissimilar computing devices
such as Network Interface Cards (NICs), bridges and routers exchange data over a network. The
model consists of seven layers. From lowest to highest, they are: Physical, Data Link, Network,
Transport, Session, Presentation and Application. Each layer performs services for the layer above it.
KB
Kilobyte. KBps is Kilobytes per second.
Kbps:
Kilobits per second.
LAN:
Local Area Network, a data communications system consisting of a group of interconnected
computers, sharing applications, data and peripherals. The geographical area is usually a building or
group of buildings.
Latency:
The delay incurred by a switching or bridging device between receiving the frame and forwarding the
frame.
Layer:
In networks, layers refer to software protocol levels comprising the architecture, with each layer
performing functions for the layers above it.
XPort™ User Manual and Development Kit 12-3
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