IBM SY27-0345-06 manual Man

Internet Protocol.

Internet

Protocol

(IP)

.

(1) A

protocol that

routesM

data

through

a

network

or

interconnected

networks. IP

acts

as an

interface

between

the

higher

logical

layers

and

procedure

(MAP)

.

A mainte-

the physical

network. However,

this

protocol

maintenance

analysis

does

not

provide

error

recovery, flow

control,

or

nance document that gives a service representative a

guarantee

the

reliability

of

the

physical

network. IP is

step-by-step procedure for tracing a symptom to the

a

of a

failure.

connectionless

protocol.

(2) A

protocol

used

cause

to

route

data

from

its

source

to

its

destination

in

an

Internet

area

network.

environment.

MAN .

Metropolitan

inverse

ARP .

A

method

for

discovering

a

management

services

(MS)

.

Services

that assist in

protocol

management of networks in areas such as problem

address

through the

known

hardware

the

address. In

frame

relay,

the

data

link

connection

management, performance and accounting manage-

identifier (DLCI)

is

synon-

management, and

change manage-

ymous

with

the

known

hardware

address.

ment,

configuration

ment.

IP .

IPX .

ISDN .

K

Kbps .

MAP .

Maintenance

analysis

procedure.

Internet Packet

Exchange.

maximum

transmission

unit

(MTU)

.

The

largest

pos-

Integrated services digital

network. sible

unit

of

data

that

can

be

sent on

a given

ph

medium in a single frame. For example, the MTU for

Ethernet is

1500

bytes.

memory

.

All

of

the

addressable

storage

space

in

a

1000 bits per

second.

processing

unit

and

other

internal

storages

that

is

u

to execute

instructions.

L

metropolitan

area

network

(MAN)

.

A

network

formed

by

the

interconnection

of

two

or

more

networks

which

LAN .

Local

area

network.

may operate at higher speed

than those

networks,

ma

LED .

Light

emitting

diode.

cross administrative boundaries, and may use multiple

access

methods. (T)

Contrastlocalwitharea network

link .

(LAN)

andwide

area

network

.(WAN)

The

combination

of

the

link

connection

(the

trans-

mission

medium)

and

two

link

stations,

one

at

each

end

information

base.

(2) MIB

MIB .

(1) Management

of

the

link

connection. A

link

connection

can

be

shared

module.

among multiple links in a multipoint or

token-ring

config-

uration.

modem

(modulator/demodulator)

.

(1) A

functional

lobe .

unit

that

modulates

and

demodulates

signals. One

of

(1) In

a

star/ring

network

configuration,

two

pairs

of

a

modem

is

to

enable

digital

data

the

functions

of

conductors

that

provide

separate

send

and

receive

over

analog

transmission

facilities. (T) (A)

transmitted

paths

between

a

wiring

concentrator

and

a

network

device

that

converts

digital

data

from

a

compu

(2) A

port,

such

as

a

wall

outlet.

(2) In

the

IBM

Token-Ring

to

an

analog signal that can be transmitted on a tel

Network,

the

section

of

cable

that

attaches

device

to

and

converts

the

analog

signal

communication

line,

an access

unit. The

cable

can

consist

of

several

seg-

data

for

the

computer.

ments.

received

to

local

area

network

(LAN) .

monitor

.

(1) A

device

that

observes

and

records

(1) A

computer

network selected activities within a data processing system

located

on

a

user’s

premises

within

a

limited

geograph-

indicate

significant

analysis. Possible uses are to

ical

area. Communication

within

a

local

area

network

is

from

the

norm, or

to

determine

levels

of

departure

not

subject

to external

regulations;

however,

communi-

of

particular

functional

units. (T)

(2) Software

zation

cation

across

the

LAN

boundary

may

be

subject

to

controls,

or

v

or hardware that observes, supervises,

some

form

of

regulation. (T)

(2) A

network

in

which

operations

of

a

system.

(A)

(3) In

a

token-ring

fies

set

of

devices

are

connected

to one

another

for

commu-

function

required

to

initiate the

trans-

network,

the

nication

and

that

can

be

connected

to

a

larger

network.

token

on

the

ring

and to provide soft-e

See

alsoEthernet andtoken

ring.

(3) Contrast

with

mission

of

a

recovery

in

case

of

lost

tokens,

circulating

frames,

metropolitan

area

network

(MAN)and wide

area

other

difficulties. The capability is present in all

network

(WAN).

stations.

MS .

Management

services.

X-4

2210

Service

and

Maintenance