Specifications

105
Glossary
Gigaset SX761 dsl / eng / A31008-M707-R111-2x-7619 / glossary.fm / 06.10.2008
Schablone 2005_07_27
Global IP address
See Public IP address
Half duplex
Operating mode for data transmission. Only one side can send and/or receive data at
the same time.
See also: Full duplex
HTTP proxy
An HTTP proxy is a Server that network components use for their Internet traffic. All
requests are sent via the proxy.
Hub
A hub connects several network components in a star-topology network by sending all
the data it receives from one network component to all the other network components.
See also: Switch, Bridge, Router, Gateway
IEEE
Institute of Electrical and Electronic Engineers
The IEEE is an international body for defining network standards, especially for stand-
ardising LAN technologies, transfer protocols, data transfer speeds and wiring.
IGMP
Internet Group Management Protocol
IGMP is an Internet Protocol that enables an Internet computer to inform neighbouring
routers that it is a member of a multicast group. With multicasting, a computer can send
content on the Internet to several other computers that have registered an interest in
the first computer's content. Multicasting can, for example, be used for multimedia pro-
grams for media streaming to recipients that have set up multicast group membership.
Internet
The Internet is a wide-area network (WAN) linking several million users around the
world. A number of Protocols have been created for exchanging data, and these are
known collectively as TCP/IP protocol stack. All participants on the Internet can be iden-
tified by an IP address. Servers are addressed by Domain names (e.g. gigaset.com).
Domain names are assigned to IP addresses by the Domain Name Service (DNS).
These are some of the main Internet services:
u Electronic mail (e-mail)
u The World Wide Web (WWW)
u File transfer (FTP)
u Discussion forums (Usenet / Newsgroups)
Internet service provider
An Internet service provider offers access to the Internet for a fee.