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Glossary
µBST
Micro Base Station
U
A unit for measuring the height in rack cabinets. 1U = 1.75
inches.
UDP
User Datagram Protocol. Connectionless transport layer protocol
in the TCP/IP protocol stack. UDP is a simple protocol that
exchanges datagrams without acknowledgments or guaranteed
delivery, requiring that error processing and retransmission be
handled by other protocols. UDP is defined in RFC 768.
UL
Up Link
VLAN
Virtual Local Area Network. A group of devices on one or more
LANs that are configured with the same VLAN ID so that they can
communicate as if they were attached to the same wire, when in
fact they are located on a number of different LAN segments.
Used also to create separation between different user groups.
VLSI
Very Large Scale Integration. The process of placing thousands
(or hundreds of thousands) of electronic components on a single
chip.
VoIP
Voice over Internet Protocol. Provides an advanced digital
communications network that bypasses the traditional public
switched telephone system and uses the Internet to transmit
voice communication. VoIP enables people to use the Internet as
the transmission medium for telephone calls by sending voice
data in packets using IP rather than by traditional circuit
switched transmissions of the PSTN.
VPL
Virtual Private Link. A virtual connection between two points on
the network, such as a base station and a service provider or
corporate network. Identified by the VPL ID, with functionality
that is similar to VLAN ID (VLAN on the backbone network).
VPN
Virtual Private Network. A private network of computers that's at
least partially connected by public lines. A good example would
be a private office LAN that allows users to log in remotely over
the Internet (an open, public system). VPNs use encryption and
secure protocols like PPTP to ensure that data transmissions are
not intercepted by unauthorized parties.
WAN
Wide Area Network. A computer network that spans a relatively
large geographical area. Wide area networks can be made up of
interconnected smaller networks spread throughout a building, a
state, or the entire globe.
XII
BreezeMAX System Manual
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