3Com 3C888 - OfficeConnect Dual 56K LAN Modem Router, Руководство пользователя

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LOSSARY
analog signals A variety of signals and wavelengths that can be transmitted over communications
lines. An example is a voice call over the phone line.
BACP/BAP Bandwidth Allocation Control Protocol (BACP) and Bandwidth Allocation Protocol
(BAP) are used in conjunction with the Multilink PPP feature. When Multilink PPP is
negotiated, the BACP negotiates with the peer equipment to determine whether
the peer supports BAP. If the peer supports BAP and agrees to use BAP, then the
BAP negotiates the addition and removal of the second modem channel with the
peer equipment based on a user-defined threshold. A key advantage of BACP/BAP
is that it provides a higher probability of establishing a Multilink PPP call during
high traffic conditions by providing a specific telephone number for the second
modem channel to call.
baud rate A term used to measure the speed of an analog transmission from one point to
another. Although not technically accurate, baud rate is commonly used
synonymously with bit rate.
bit rate Also referred to as transmission rate. The number of binary digits (or bits)
transmitted per second (bps). Communications channels using telephone channel
modems are established at set bit rates, commonly 28,800, 56,000, or higher.
central office (CO) The facility at which individual telephone lines in a limited geographic area are
connected to the public telephone network.
client-server :A networking architecture that makes use of distributed intelligence by exploiting
the processing power of all attached computers on the network. A client device is
usually a personal computer—often termed
workstation in this context—and the
server is often a high-speed computer. The term client/server is generally used in
contrast to its counterpart, peer-to-peer , which applies to a network environment
in which all devices are able to serve equally as both client and server, and in which
there is no comparable division of function and hierarchy.
In the context of the LAN Modem’s dial-in scenarios, client-side is used to refer to
the LAN Modem or other device (and/or its associated LAN) that initiates a dial-out
call to the LAN Modem that receives the call.
CHAP Challenge Handshake Authentication Protocol. CHAP is one of two PPP
authentication protocols; PAP is the other. An authentication protocol requests
information to verify a valid user. CHAP is a stronger authentication method
because it uses encryption and may repeatedly request user verification at any
time after link establishment.
compression Compression is a method of reducing the size of data packets without losing any
information. If you desire, the 56K modem can automatically compress data for