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Glossary
UDP
User Datagram Protocol
UDP is a
protocol family that handles data transport between two
communication partners (applications). Unlike
, UDP is a non-session based proto-
col. It does not establish a fixed connection. The recipient is responsible for making sure
the data is received. The sender is not notified about whether it is received or not.
UPnP
Universal Plug and Play
UPnP technology is used for the spontaneous linking of home or small office networks.
Devices that support UPnP carry out their network configuration automatically once
they are connected to a network. They also provide their own services or use services of
other devices in the network automatically.
URL
Universal Resource Locator
Globally unique address of a domain on the
.
VCI
Virtual Channel Identifier
Part of an address in an ATM network.
Virtual server
A virtual
that runs not on itself, but on another
network component. The router Gigaset 504 AGU can be configured as a virtual server.
It will then direct incoming calls for a service via
directly to the appro-
priate
of the network component in question.
VLAN
Virtual Local Area Network
A VLAN is a virtual local network within a physical network. A widely disseminated tech-
nical implementation of VLANs is defined partially in the Standard IEEE 802.1Q. VLAN
allows preferred forwarding of voice data, for example. This functionality is important
for VoIP (IP telephony). This also means that phone calls can be made without interrup-
tion with a restricted bandwidth.
VoIP
Voice over IP
See
VPI
Virtual Path Identifier
Part of an address in an ATM network.
