User manual

Terminology
52
PPPoE (Point-to-Point Protocol over Ethernet)
Point-to-Point Protocol is a method
of secure data transmission originally created
for dial-up connections. PPPoE is for Ethernet connections.
Roaming
Roaming is a function that allows your to move through a particular domain
without losing network connectivity.
Static IP
If your Service Provider has assigned a fixed IP address, enter the assigned IP
address, subnet mask
and the gateway address provided by your service
provider.
SECAM ( Système En Couleur Avec Mémoire)
SECAM is a
color TV standard that was developed in France and broadcasts 25
interlaced frames per second at 625 lines of resolution. It is
used primarily in
France and Russia, and some other countries in Africa and the Middle East as
well.
Subnet Mask
A subnet mask, which may be a part of the TCP/IP information provided by
your ISP, is a set of four numbers configured like an IP address.
It is used to create IP address numbers used only within a particular network
(as opposed to valid IP address numbers recognized by the Internet).
TCP
( Transmission Control Protocol)
TCP and UDP (User Datagram Protocol) are the two transport protocols in
TCP/IP. TCP ensures that a message is sent accurately and in its entirety.
However, for real-time voice and video, there is really no time or reason to
correct errors, and UDP is used instead.
TCP/IP (Transmission Control Protocol/Internet Protocol)
This is the standard protocol for data transmission over the Internet.
UDP ( User Datagram Protocol)
UDP is a protocol within the TCP/IP protocol suite that
i s used in place of TCP
when a reliable delivery is not required. For example,
UDP is used for real-time
audio and video traffic where lost packets are simply ignored, because there is
no time to retransmit. If UDP is used and a reliable delivery is required, packet
sequence checking and error notification must be written into the applications.