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Streaming Glossary
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U |
| UDP: |
(User Datagram Protocol) - UDP is referred to
as a connectionless protocol which runs on top of
IP networks. Its primary use is to send broadcasting
messages over a network,. UDP is an alternative
to the Transmission Control Protocol (TCP). Unike
TCP, UDP does not provide the service of dividing
a message into packets (datagrams) and reassembling
it at the other end. Specifically, UDP doesn't provide
sequencing of the packets that the data arrives
in. However, RTP provides sequencing and time-stamping.
This means that the application program that uses
UDP must be able to make sure that the entire message
has arrived and is in the right order. |
| Unicast: |
A one-to-one protocol where communication exists
betwen a single sender and a single receiver. IP
packets are sent from a source to a single destination.
This is the usual way that IP is used on the internet
today. Contrasted with multicast, where the same
packet is delivered to multiple computers. |
| UNIX: |
A generic term applied to several similar operating
systems usually found on servers. |
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