Agilent-technologies J3972A Manual de usuario descargar pdf (Pagina 166)

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Layer

A level in the hierarchy of telecommunications protocols. Protocols in the higher

layers inter-operate with those in the lower layers.

LOCS

Loss Of Cell Synchronization

LOSS

Loss Of Scrambler Synchronization

M23 Parity

A DS3 framing format. See also C-Bit Parity.

MAC address

A 12-digit (48 bit) hexadecimal number that identifies a specific network station

and allows messages to be directed to that station only. Because the IEEE has

assigned identifiers for each hardware manufacturer, no two pieces of equipment

have the same address. The address assigned according to the IEEE plan is

referred to as a device’s globally-administered station address. Some devices

provide an option for the user to assign a different station address that will

override the original. This type of address is referred to as a locally-administered

station address. The station address is also commonly called a MAC address,

Ethernet address, Token-Ring address, or physical address.

Manager

A node that collects network management information from agents.

Management station

A station that collects network management information from probes.

MAU (Medium Attachment Unit)

The assembly used to provide the physical connection and access to a LAN. It is

the device on the LAN that detects collisions. (A transceiver is also called a MAU

in the IEEE 802.3 standard.)

Mbps

Megabits per second.

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Agilent-technologies J3972A Manual de usuario Pagina 166