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LOSSARY

Glossary-4

IEEE 802.3x

Defines Ethernet frame start/stop requests and timers used for flow

control on full-duplex links. (Now incorporated in IEEE 802.3-2005.)

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.

Local Area Network (LAN)

A group of interconnected computer and support devices.

Main Distribution Frame (MDF)

The hardware at a facility where external and internal lines terminate and

are cross connected.

Management Information Base (MIB)

An acronym for Management Information Base. It is a set of database

objects that contains information about the device.

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