Glossary-3
Glossary
IEEE 802.3u
Defines CSMA/CD access method and physical layer specificatio ns for
100BASE-TX Fast Ethernet. (Now incorporated in IEEE 802.3-2002.)
IEEE 802.3x
Defines Ethernet frame start/stop requests and timers used for flow control on
full-duplex links. (Now incorporated in IEEE 802 .3-2002.)
IEEE 802.3z
Defines CSMA/CD access method and physical layer specifications for 100 0BASE
Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.)
LAN Segment
Separate LAN or collision domain.
LED
Light emitting diode used for monitoring a device or network condition.
Local Area Network (LAN)
A group of interconnected computer and supp ort devices.
Media Access Control (MAC)
A portion of the networking protocol that governs access to the transmissi on
medium, facilitating the exchange of data between network nodes.
MIB
An acronym for Management Information Base. It is a set of database objects that
contains information about the device.
Modal Bandwidth
Bandwidth for multimode fiber is referred to as modal bandwidth because it varies
with the modal field (or core diameter) of the fiber. Modal bandwidth is specified in
units of MHz per km, which indicates the amount of bandwidth support ed by the fiber
for a one km distance.
Network Diameter
Wire distance between two end stations in the s ame collision domain.
Redundant Power Supply (RPS)
A backup power supply that automatically takes over in case the primary power
supply should fail.