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Glossary
The send and receive directions are transposed on the uplink
port. On some devices the port can change between normal
and uplink mode by means of a switch.
upload
This term designates the procedure of transmitting files from
one’s own computer to another computer in the Internet.
UPnP
short for Universal Plug and Play (UPnP)
UPnP is an extension of the Microsoft Plug & Play standard
that allows devices to network globally and to exchange ser-
vices — without a central server or computer.
UPnP allows devices from all kinds of manufacturers (stereo
systems, routers, printers, house controls) to be controlled
via an IP-based network (
), with or without cen-
tral control through a gateway. It is based on a number of
standardized network protocols and data formats. Expressed
simplistically, devices can communicate with each other au-
tomatically using UPnP to exchange information.
Today the UPnP forum specifies the UPnP standard and certi-
fies devices that are compliant with this standard.
UPnP AV
short for Universal Plug and Play Audio/Video
UPnP AV is a UPnP specification for the interaction between
the media server, playback devices and devices controlling
the streaming (transmitting a data stream) of audio, image
and video data within networks. Media servers are devices
that make audio, image and video data available upon re-
quest. Playback devices render the audio, image and video
data (television, stereo system, streaming clients). Control
devices are remote controls (smartphone, remote control).
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