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Gigaset SX763 WLAN dsl / en / A31008-M707-R131-2-7619 / glossary.fm / 08.12.2006

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Half duplex
Operating mode for data transmission. Only one side can send and/or receive data at 
the same time.
See also: 

HTTP proxy
An HTTP proxy is a 

 that network components use for their 

 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: 

 

IEEE
Institute of Electrical and Electronic Engineers
The IEEE is an international body for defining network standards, especially for stand-
ardising 

 technologies, transfer protocols, data transfer speeds and wiring. 

 802.11 is a standard for wireless LANs operating in the 2.4 GHz band. In so-called 

, terminals can be connected to a base station (

) or they 

can connect with each other spontaneously (

).

IGMP
Internet Group Management Protocol
IGMP is an Internet 

 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.

Infrastructure mode
Infrastructure mode is a way of operating wireless local networks (

) in which an 

 handles the data traffic. Network components cannot establish a direct 

connection with each other as is the case in 

.