ZyXEL Communications Prestige 642, Руководство пользователя

Страница: 69 / 73

Prestige 642 ADSL Modem
Glossary E
permitted. Change can occur, however, through subsequent RFCs.
RIP Routing Information Protocol is an interior or intra-domain routing protocol that uses the
distance-vector routing algorithms. RIP is used on the Internet and is common in the NetWare
environment as a method for exchanging routing information between routers.
SAP In NetWare, the SAP (Service Advertising Protocol) broadcasts information about available
services on the network that other network devices can listen to. A server sends out SAP
messages every 60 seconds. A server also sends out SAP messages to inform other devices
that it is closing down. Workstations use SAP to find services they need on the network.
Server A computer, or a software package, that provides a specific kind of service to client software
running on other computers.
SNMP
System Network Management Protocol is a popular management protocol defined by the
Internet community for TCP/IP networks. It is a communication protocol for collecting
information from devices on the network.
STP Twisted-pair cable consists of copper-core wires surrounded by an insulator. Two wires are
twisted together to form a pair, and the pair form a balanced circuit. The twisting prevents
interference problems. STP (shielded twisted-pair) provides protection against external
crosstalk.
Straight
through
Ethernet
cable A cable that wires a pin to its equivalent pin. This cable connects two dissimilar devices, for
example, a data terminal equipment (DTE) and a data communications equipment (DCE)
device. A straight through Ethernet cable is the most common cable used.
SUA Single User Account – The Prestige's SUA (Single User Account) feature allows multiple user
Internet access for the cost of a single ISP account - see also NAT.
TCP Transmission Control Protocol handles flow control and packet recovery and IP providing
basic addressing and packet-forwarding services.
Telnet Telnet is the login and terminal emulation protocol common on the Internet and in UNIX
environments. It operates over TCP/IP networks. Its primary function is to allow users to log
into remote host systems.
Terminal A device that allows you to send commands to a computer somewhere else. At a minimum,
this usually means a keyboard and a display screen and some simple circuitry.
Terminal
Software Software that pretends to be (emulates) a physical terminal and allows you to type commands
to a computer somewhere else.
TFTP Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP (File Transfer
Protocol), but it is scaled back in functionality so that it requires fewer resources to run. TFTP
uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control Protocol).
UDP
UDP is a connectionless transport service that dispenses with the reliability services provided
by TCP. UDP gives applications a direct interface with IP and the ability to address a
particular application process running on a host via a port number without setting up a
connection session.