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WLAN ADSL2+ Router
7.0 Technology Glossary
10Base-T
An adaptation of the 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.
Address mask
A bit mask used to select bits from an Internet address for subnet addressing.
The mask is 32 bits long and selects the network portion of the Internet
address and one or more bits of the local portion. Sometimes called subnet
mask.
ADSL
Asymmetric Digital Subscriber Line, as it’s 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.
DHCP
Dynamic Host Configuration Protocol. Used for assigning dynamic IP address
to devices on a network. Used by ISPs for dialup users.
DNS
Domain Name Server, translates domain names into IP addresses to help user
recognize and remember. However, the Internet actually runs on numbered IP
addresses, DNS servers needs to translate domain names back to their
respective IP addresses.
