Lightning SA MultiCom, User Manual

Page: 150 / 172

Glossary
150 Glossary User’s Manual
in the same connector locations at both ends of the cable. A crossed wire cable
however has, as its name suggests, a pair of crossed wires ending in a different
order at one end than on the other end.
Be sure you are using the right cable for your desired connection.
Cable Modems
These modems connect you to high speed Internet-access using cable TV lines.
Since you are connecting to your TV line you will use coaxial cables between the
modem and your cable TV interface. The modem should have an ethernet
interface on it to communicate with your internal network. Speeds are possible up
to 2 Mbps depending on your service provider.
CATV
The high speed Internet-access technology uses cable TV lines to connect the
user's home to the Internet.
Client
Part of a client-server architecture. The client is the software which presents
information to the user and often allows for interaction with that data as well.
This information is retrieved from a server which will actually do the work of
preparing the information for the client.
An example of this is an email program where the program on your computer is
the client and the computer that you connect to (to retrieve your email) is the
server.
Compression
The action of transforming data into files of smaller sizes. While in a small size
the data can be transmitted faster over network media and then uncompressed on
the other side.
Connection State
A TCP identifier found in the header of a TCP data packet. Below are the 4 IP
packet states that filtering rules can be set to watch for.
New - A packet which creates a new connection.
Established - A packet which belongs to an existing connection (i.e. which is a
reply to an accepted request, or an outgoing packet on a connection which has
seen replies.)
Related - A packet which is related to, but NOT part of, an existing connection,
such as an ICMP error or some ftp data connections.