Glossary-18
UDP
User Datagram Protocol
. A protocol that is the part of the Internet Protocol that
provides datagram service. It distinguishes between multiple destinations on a host,
allowing multiple application programs executing on a host to independently exchange
(send and receive) datagrams with multiple application programs on another host.
User Datagram Protocol
See
UDP
.
virtual circuit
A logical communications path between a access server and a
service node
. A virtual
circuit provides a bidirectional, sequential, timer-based, error-free stream of data.
WAN
Wide Area Network
. A network composed of computers connected by
communications links that cover distances up to many thousands of miles.
Contrast
with
LAN
.
Wide Area Network
See
WAN
.
XON/XOFF characters
These characters are used with a form of in-band flow control and are transmitted as
TxD and RxD data.