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Subnet mask:
A number that identifies the subnet portion of a network address. so that IP addresses can
be shared on a local area network.
Subnet:
An independent network segment, that is, it has the same network address, but its subnet
address is different.
Switch:
A data switch connects computing devices to host computers, enabling multiple devices to share
a limited number of ports. An electrical switch is a device for making, breaking, or changing the
connections in an electrical circuit.
TCP/IP:
Transmission control protocol/Internet protocol, a set of protocols that govern peer-to-peer
connectivity functions for local and wide area networks.
TCP:
Transmission Control Protocol.
Telnet:
The TCP/IP virtual terminal protocol that allows a user at one site to access a remote system at
another site.
Throughput:
The number of bits, characters, or blocks that are able to pass through a data
communication system.
UDP:
User Datagram Protocol. A connectionless protocol that converts data messages generated by an
application into packets to be sent over IP.
Upload:
To receive a file transmitted over a network.
URL:
Uniform Resource Locator. An Internet standard addressing protocol for describing the location and
access method of a resource on the Internet.
VPN:
Virtual Private Network. A network implemented over a public network that is made "private" by use
of encryption.
WAN:
Wide area network. A communications network that connects geographically separated areas
(Compare with LAN).
1823-A2-GB20-00
May 2005
1823 VoIP Gateway User's Guide
49
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