Nera WiLink-I 3000, System Manual

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WiLink-I Modular Base Station System Manual 213
MAC Media Access Control. The lower of the two sub-layers of the data
link layer defined by the IEEE. The MAC sub-layer handles access to
shared media, such as whether token passing or contention will be
used.
MAC Address
Standardized data link layer address that is required for every port
or device that connects to a LAN. Other devices in the network use
these addresses to locate specific ports in the network and to create
and update routing tables and data structures. MAC addresses are
6bytes long and are controlled by the IEEE.
MAN
Metropolitan Area Network. A data network designed for a town or
city. In terms of geographic breadth, MANs are larger than local-area
networks (LANs), but smaller than wide-area networks (WANs).
MIB
Management Information Base. A database of objects that can be
monitored by a network management system. SNMP uses
standardized MIB formats that allow any SNMP tools to monitor any
device defined by a MIB.
MIR
Maximum Information Rate. Specifies the maximum rate of
information that can be available to a user. The MIR is used by the
traffic policing mechanism to prevent users from sending excess
traffic to the network.
NA
Not Available or Not Applicable
NAT
Network Address Translation. Basic Network Address Translation
(Basic NAT) is a method by which IP addresses are mapped from one
group to another, transparent to end users. Network Address Port
Translation, or NAPT is a method by which many network addresses
and their TCP/UDP ports are translated into a single network
address and its TCP/UDP ports. Together, these two operations,
referred to as traditional NAT, provide a mechanism to connect a
realm with private addresses to an external realm with globally
unique registered addresses.
NIC
Network Interface Card. An expansion board you insert into a
computer (or a built-in component) that enables the computer to
connect to a network. Most NICs are designed for a particular type of
network, protocol, and media, although some can serve multiple
networks.
NIU
Network Interface Unit
NLOS
Non Line Of Sight. A term referring to wireless services which don't
require a clear open path between sites.