SMC Networks SMC TigerSwitch 10/100/1000 SMC8124PL2 Installation Manual page 63

Glossary
IEEE 802.3x
Defines Ethernet frame start and stop requests and timers used for flow control on
full-duplex links. (Now incorporated in IEEE 802.3-2005.)
IEEE 802.3z
Defines CSMA/CD access method and physical layer specifications for 1000BASE
Gigabit Ethernet. (Now incorporated in IEEE 802.3-2005.)
LAN Segment
Separate LAN or collision domain.
Layer 2
Data Link layer in the ISO 7-Layer Data Communications Protocol. This is related
directly to the hardware interface for network devices and passes on traffic based on
MAC addresses.
LED
Light emitting diode used for monitoring a device or network condition.
Link Segment
Length of twisted-pair or fiber cable joining a pair of repeaters or a repeater and a
PC.
Local Area Network (LAN)
A group of interconnected computers and support devices.
Management Information Base (MIB)
An acronym for Management Information Base. It is a set of database objects that
contains information about the device.
Media Access Control (MAC)
A portion of the networking protocol that governs access to the transmission
medium, facilitating the exchange of data between network nodes.
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 supported by the fiber
for a one km distance.
Network Diameter
Wire distance between two end stations in the same collision domain.
Glossary-3