Installation manual

Glossary-4
UDP User Datagram Protocol
UTP/STP Unshielded Twisted Pair/Shielded Twisted Pair
V. 3 5 / V. 3 6 ITU-T standard synchronous physical layer protocol between
a network a
ccess device and a packet network.
VA D Voice Activity Detection
VLAN Virtual Local Area Network
VME VersaModule Eurocard
Vo F R Voice over Frame Relay
Vo I P Voice over Internet Protocol
WAN Wide Area Network
X.21 ITU-T standard serial communications over synchronous
digi
tal lines used
primarily in Europe and Japan
X.25 CCITT recommendation for interface between data terminal
eq
uipment and packet-switched data networks.
(See Telnet.)
ZAP
Console terminal command-line utility
Term Meaning