Carrier Access Adit 600, Руководство пользователя

Страница: 286 / 296

Glossary - 8 CMG Router - Release 2.7
Glossary
telnet
An Internet standard protocol that enables a computer to function as a
terminal working from a remote computer.
TFTP
Trivial File Transfer Protocol. A simplified version of FTP that transfers
files but does not provide password protection or user-directory
capability.
Trace Route
A software utility that traces a data packet from your computer to a
distant Internet server.
Trunk
A communication line between two switching systems.
Voice over IP
(VoIP)
An emerging technology that is, voice delivered using the Internet
Protocol, is a term used in IP telephony for a set of facilities for managing
the delivery of voice information using the Internet Protocol (IP). In
general, this means sending voice information in digital form in discrete
packets rather than in the traditional circuit committed protocols of the
public switched telephone network (PSTN). A major advantage of VOIP
and Internet telephony is that it avoids the tolls charged by ordinary
telephone service.
VPN
Virtual Private Network. A network that is constructed by using public
wires to connect nodes. For example, there are a number of systems that
enable you to create networks using the Internet as the medium for
transporting data. These systems use encryption and other security
mechanisms to ensure that only authorized users can access the network
and that the data cannot be intercepted.
WAN
Wide Area Network. A private long distance network that uses leased
lines to connect computers or LANs. A wide area network is a linking of
computers not physically attached through conventional network
connectivity. Usually the WAN connection is a dedicated or high grade
dial up phone link. It is often done with T1 or T3 connections but can also
be through satellite or other technologies.