User`s manual

Appendix F Glossary
111
Appendix F Glossary
KEYWORD EXPLANATION
10 Base-T
Part of the original IEEE 802.3 standard, 10 Base-T is the Ethernet
specification of 10 Mbps base-band that uses two pair of
twisted-pair, Category 3, 4 or 5 cabling- using one pair to send data
and the other to receive. 10 Base-T has a distant limit of about 100
meters per segment.
100 Base-T
Based on the IEEE 802.3u standard, 100BaseT is the Fast Ethernet
specification of 100 Mbps base-band that uses UTP wiring.
100BaseT sends link pulse over the network when no traffic is
present.
Address Mask
The address mask for an IP address is used to identify the boundary
between the network portion of the address and host portion.
ADSL
Asymmetric Digital Subscriber Line: An evolving high-speed
transmission technology originally developed by Bell-core and mow
standardized by ANSI as T1.413.
Uses existing UTP copper wires from Telephone Company’s central
office to subscriber’s premises.
Involves electronic equipment in the form of ADSL modems at
central office and subscriber’s premises.
Sends digital signal up and down these copper wires and sends
more information one way than the other- hence the term
“asymmetric”.
ARP
Address Resolution Protocol is a method to find a host’s physical
address from its IP address. An ARP request is sent to the network,
naming the IP address, then machine with that IP address returns its
physical address so it can receive the transmission.
ATM
Asynchronous Transfer Mode. International standard for cell relay in
which multiple service types (such as voice, video, or data) are
conveyed in fixed-length (53-byte) cells. Fixed-length cells allow cell
processing to occur in hardware, thereby reducing transit delays.
ATM is designed to take advantage of high-speed transmission
media such as E3, SONET, and T3.