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node:
A connection or switching point in a network, also called a host.
noise:
Unwanted interference to a transmitted signal by an outside source.
PAP:
Password Authentication Protocol. PPP protocol that ensures authentication of the
connection between two devices.
PAT:
Port Address Translation is a form of NAT that maps multiple Private IP addresses to a
single Public IP address.
ping:
An internet utility signal sent to check the accessibility of a device.
Plug-and-Play:
The ability of a PC to configure expansion boards and other devices
automatically without requiring the user to turn off the system during installation.
point-to-point connection:
that connects only two stations.
poison reverse:
A routing protocol command that tells its neighbor gateways that one of the
gateways is no longer connected.
POP:
Point Of Presence.
Port:
An access point where data can enter or exit.
POTS:
Plain Old Telephone Service.
PPP over ATM:
Point-to-Point Protocol over Asynchronous Transfer Mode.
PPP:
Point-to-Point Protocol. A protocol (RFC 1661) for transmitting packets over serial links
between devices made by the same or different manufacturers.
PPPoE:
Point-to-Point Protocol over Ethernet. A method for establishing sessions and
encapsulating PPP packets over an Ethernet, specified by RFC 2516.
PPTP:
Point-to-Point Tunneling Protocol. An extension of Point-to-Point Protocol used to
create virtual private networks between PCs.
protocol:
A set of rules that govern the transmission of data between interconnected devices to
maintain or improve communication.
proxy server:
Provides a list of items available on other servers to increase the availability and
speed of retrieving that information.
PSTN:
Public Switched Telephone Network. The standard telephone network.
PVC:
Permanent Virtual Circuit. Virtual circuit that is permanently established.
QoS:
Quality of Service. The expected data loss or latency.
remote access:
ommunication from a remote location or facility through a data link.
C
Any connection with only two endpoints. A dedicated data link
1813 VoIP Gateway User's Guide
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