ADTRAN Express 6120 Manual de instrucciones descargar pdf (Pagina 144)

Glossary

Glossary-4 Express 6100/6120 User Manual 61200176L1-1

IEEE

Institute ofElectrical andElectronic Engineers. Professional organiza-

tionthat definesnetwork standards. IEEE LAN standardsare the pre-

dominant LAN standards today and include protocols similar or

virtually equivalent to Ethernet and Token Ring.

IEEE 802.1d

An algorithm used to prevent bridging loops by creating a spanning

tree.

IEEE 802.2

An IEEE LAN protocol that specifies an implementation of the LLC

sublayer of the data link layer. It handles errors, framing, flow con-

trol, network layer (Layer 3) service interface, and is used in LANs.

IEEE 802.3

A physical layer standard specifying a linear bus network LAN with

a CSMA/CD access method on a bus topology. Ethernet follows the

802.3 standard, transmitting at 10 megabits per second. This is the

most commonlocal areanetwork specification. Physical variations of

IEEE 802.3 include 10Base2 and 10BaseT.

in-band signalling

Signalling made up of tones which pass within the voice frequency

band and are carried along the same circuit as the talk path being es-

tablished by the signals. Virtually all signalling (request for service,

dialing, disconnect, etc.)in the U.S.is in-band signalling. Most of that

signalling isMF(Multi-Frequency)dialing. Themoremodernformof

signalling is out-of-band.

interexchange carrier

Since divestiture, any carrier registered with the FCC authorized to

carry customer transmissions between LATAs interstate, or if ap-

proved by a state public utility commission, intrastate. Includes carri-

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ADTRAN Express 6120 Manual de instrucciones Pagina 144