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Prestige 304 Broadband Sharing Gateway with 4-Port Switch
Glossary K
relays the PPP frames to the PNS (PPTP Network Server). A PAC must have IP and
dial-up capability.
POP
Post Office Protocol. This is a common protocol used for sending, receiving, and
delivering mail messages.
Port
An Internet port refers to a number that is part of a URL, appearing after a colon (:),
directly following the domain name. Every service on an Internet server listens on a
particular port number on that server. Most services have standard port numbers, for
instance, Web servers normally listen on port 80.
Port (H/W)
An interface on a computer for connecting peripherals or devices to the computer. A
printer port, for example, is an interface that is designed to have a printer connected to
it. Ports can be defined by specific hardware (such as a keyboard port) or through
software.
POTS
Plain Old Telephone Service is the analog telephone service that runs over copper
twisted-pair wires and is based on the original Bell telephone system. Twisted-pair
wires connect homes and businesses to a neighborhood central office. This is called the
local loop. The central office is connected to other central offices and long-distance
facilities.
PPP
Point to Point Protocol. PPP encapsulates and transmits IP (Internet Protocol)
datagrams over serial point-to-point links. PPP works with other protocols such as IPX
(Internetwork Packet Exchange). The protocol is defined in IETF (Internet Engineering
Task Force) RFC 1661 through 1663. PPP provides router-to-router, host-to-router, and
host-to-host connections.
PPPoE
PPPoE (Point-to-Point Protocol over Ethernet) relies on two widely accepted standards:
PPP and Ethernet. PPPoE is a specification for connecting the users on an Ethernet to
the Internet through a common broadband medium, such as a single DSL line, wireless
device or cable modem. All the users over the Ethernet share a common connection, so
the Ethernet principles supporting multiple users in a LAN combine with the principles
of PPP, which apply to serial connections. From authentication, accounting and secure
access to configuration management, PPPoE supports a broad range of existing
applications and services.
PPTP
Point-to-Point Tunneling Protocol.
Protocol
A "language" for communicating on a network. Protocols are sets of standards or rules
used to define, format and transmit data across a network. There are many different
protocols used on networks. For example, most web pages are transmitted using the
HTTP protocol.