19216811.liveUser Manual
Aolynk DR811/DR814 ADSL2+Broadband Router
9
Appendix - Glossary
73
RJ-45
Registered
Jack
Standard-45
The 8-pin plug used in transmitting data over phone lines.
Ethernet cabling usually uses this type of connector.
routing
Forwarding data between your network and the Internet on the
most efficient route, based on the data
’
s destination IP address
and current network conditions. A device that performs routing is
called a router.
subnet
A subnet is a portion of a network. The subnet is distinguished
from the larger network by a
subnet mask
that selects some of
the computers of the network and excludes all others. The
subnet's computers remain physically connected to the rest of
the parent network, but they are treated as though they were on
a separate network.
See also network mask
.
subnet mask
A mask that defines a subnet.
See also network mask
.
TCP
See TCP/IP
.
TCP/IP
Transmissio
n Control
Protocol/Inte
rnet Protocol
The basic protocols used on the Internet. TCP is responsible for
dividing data up into packets for delivery and reassembling them
at the destination, while IP is responsible for delivering the
packets from source to destination. When TCP and IP are
bundled with higher-level applications such as HTTP, FTP,
Telnet, etc., TCP/IP refers to this whole suite of protocols.
Telnet
An interactive, character-based program used to access a
remote computer. While HTTP (the web protocol) and FTP only
allow you to download files from a remote computer, Telnet
allows you to log into and use a computer from a remote
location.
TFTP
Trivial File
Transfer
Protocol
A protocol for file transfers. TFTP is easier to use than File
Transfer Protocol (FTP) but not as capable or secure.
twisted pair
The ordinary copper telephone wiring long used by telephone
companies. It contains one or more wire pairs twisted together
to reduce inductance and noise. Each telephone line uses one
pair. In homes, it is most often installed with two pairs. For
Ethernet LANs, a higher grade called Category 3 (CAT 3) is
used for 10BASE-T networks, and an even higher grade called
Category 5 (CAT 5) is used for 100BASE-T networks.
See also
10BASE-T, 100BASE-T, Ethernet
.
upstream
The direction of data transmission from the user to the Internet.
USB
Universal
Serial Bus
A serial interface that lets you connect devices such as printers,
scanners, etc. to your computer by simply plugging them in. The
ADSL router is equipped with a USB interface for connecting to
a stand-alone PC.
VC
Virtual
Circuit
A connection from your DSL router to your ISP.
VCI
Virtual
Circuit
Identifier
Together with the Virtual Path Identifier (VPI), the VCI uniquely
identifies a VC. Your ISP will tell you the VCI for each VC they
provide.
See also VC
.