Chapter vii: glossary – AirLive WT-2000ARM User Manual

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AirLive WT-2000ARM User’s Manual

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Chapter VII: Glossary

10Base-T

It is an Ethernet standard for Local Area Network (LAN). 10Base-T uses a twisted pair cable with

maximum length of 100 meters.

AAL

ATM Adaptation Layer that defines the rules governing segmentation and reassembly of data into cells.

Different AAL types are suited to different traffic classes.

ADSL

Asymmetric Digital Subscriber Line, as its name showing, is an asymmetrical data transmission

technology with high traffic rate downstream and low traffic rate upstream. ADSL technology satisfies

the bandwidth requirement of applications, which demand “asymmetric” traffic, such as web surfing,

file download and Video-on-demand (VOD).

ATM

Asynchronous Transfer Mode is a layer 2 protocol supporting high-speed asynchronous data with

advanced traffic management and quality of service features.

bps

Bits per second, a standard measurement of digital transmission speeds.

Bridge

A device that connects two or more physical networks and forwards packets between them. Bridges

can usually be made to filter packets, that is, to forward only certain traffic. Related devices are:

repeaters which simply forward electrical signals from one cable to the other and full-fledged routers

which make routing decisions based on several criteria.

CPE

Customer Premises Equipment, such as ADSL router, USB modem.

Default Gateway (Router)

Every non-router IP device needs to configure a default gateway’s IP address. When the device sends

out an IP packet, if the destination is not on the same network, the device has to send the packet to its

default gateway, which will then send it out towards the destination.

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