User's Manual

Glossary
AAA Authentication, Authorization, and Accounting (Pronounced "triple
a."). A system (or several systems) that controls what resources
users have access to, and keeps track of the activity of users over
the network.
ANSI American National Standards Institute. A voluntary organization
composed of corporate, government, and other members that
coordinates standards-related activities, approves U.S. national
standards, and develops positions for the United States in
international standards organizations.
ARP Address Resolution Protocol. Internet protocol used to map an IP
address to a MAC address. Defined in RFC 826.
ARQ Automatic Repeat reQuest. A communication technique in which the
receiving device detects errors and requests retransmissions.
ASCII American Standard Code for Information Interchange. A code for
representing English characters as numbers, with each letter
assigned a number from 0 to 127.
ATM Asynchronous Transfer Mode. A network technology that
dynamically allocates bandwidth. ATM uses fixed-size data packets
and a fixed channel between two points for data transfer. ATM was
designed to support multiple services such as voice, graphics, data,
and full-motion video. It allows service providers to dynamically
assign bandwidth to individual customers.
ATPC Automatic Transmit Power Control
AU Access Unit
AVU Air Ventilation Unit
BE Best effort. A service where neither throughput nor delay guarantees
are provided. The subscriber unit sends requests for bandwidth in
either random access slots or dedicated transmission opportunities.
The occurrence of dedicated opportunities is subject to network
load, and the subscriber unit cannot rely on their presence. Service
parameters include Committed Time (CT) and Maximum Information
Rate (MIR).