User's Manual

SPEEDLAN 9000 Series Installation and Operation User Guide
Glossary-11
MAC address
In a LAN environment each computer contains its own Medium Access Control (MAC) address which is the embedded and
unique hardware number. For computers on Ethernet LANs, this is the same number as its Ethernet address. This address is
controlled at the DataLink Layer of the OSI model, and is in a hexadecimal format separated by four octets (i.e.,
82.39.1E.38).
Major alarm
Indicates that the alarm may cause service interruption.
MAN
This is a metropolitan network that enables computers, network equipment, other peripherals, and more than one LAN to
communicate within the city or nearby limits.
Management Information Base (MIB)
A database of network parameters used by SNMP and CMIP to monitor and change network device settings. It provides a
logical naming of all information resources on the network pertinent to the network’s management.
Mean Time Between Failure (MTBF)
A measure of the theoretical times a component or device will operate without failing.
MHz (MegaHertz)
Millions of Hertz.
Minor alarm
Indicates that the radio is placed in a condition that may affect the 100 Mb throughput, but can be restored (i.e., turning
off loopback functions).
Modulation
The process of varying characteristics of a carrier signal to represent changes in the transmitted information.
MOdulator-DEModulator (MODEM)
A device that converts a digital signal to analog, or vice versa, and is used to transfer data between computers over com-
munications lines.
Msps
Million of samples per second.