ZyXEL Communications Prestige 310 - Manual (Page 153)

Prestige 310 Broadband Sharing Gateway
Glossary M
relay, ATM (Asynchronous Transfer Mode), or Internet-connect system.
DSLAM A Digital Subscriber Line Access Multiplexer (DSLAM) is a network device, usually at a
telephone company central office, that receives signals from multiple customer Digital
Subscriber Line connections and puts the signals on a high-speed backbone line using
multiplexing techniques. Depending on the product, DSLAM multiplexers connect DSL
lines with some combination of asynchronous transfer mode ATM, frame relay, or IP
networks.
Ethernet A very common method of networking computers in a LAN. There are a number of
adaptations to the IEEE 802.3 Ethernet standard, including adaptations with data rates
of 10 Mbits/sec and 100 Mbits/sec over coaxial cable, twisted-pair cable, and fiber-
optic cable. The latest version of Ethernet, Gigabit Ethernet, has a data rate of 1
Gbit/sec.
Flash memory The nonvolatile storage that can be electrically erased and reprogrammed so that data
can be stored, booted, and rewritten as necessary.
FTP File Transfer Protocol is an Internet file transfer service that operates on the Internet
and over TCP/IP networks. FTP is basically a client/server protocol in which a system
running the FTP server accepts commands from a system running an FTP client. The
service allows users to send commands to the server for uploading and downloading
files. FTP is popular on the Internet because it allows for speedy transfer of large files
between two systems.
Gateway A gateway is a computer system or other device that acts as a translator between two
systems that do not use the same communication protocols, data formatting structures,
languages, and/or architecture.
Host Any computer on a network that is a repository for services available to other
computers on the network. It is quite common to have one host machine provide
several services, such as WWW and USENET.
HTTP Hyper Text Transfer Protocol. The most common protocol used on the Internet. HTTP
is the primary protocol used for web sites and web browsers. It is also prone to certain
kinds of attacks.
IANA Internet Assigned Number Authority acts as the clearinghouse to assign and
coordinate the use of numerous Internet protocol parameters such as Internet
addresses, domain names, protocol numbers, and more. The IANA Web site is at
http://www.isi.edu/iana.
ICMP Internet Control Message Protocol is a message control and error-reporting protocol
between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP)
datagrams, but the messages are processed by the TCP/IP software and are not
directly apparent to the application user.
Intranet A private network inside a company or organization that uses the same kinds of