Multitech MR4800E Bedienungsanleitung PDF herunterladen (Seite 10)

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6,219,708

B1

5

ID

call

management

and

security

and

statistical

telephone

call

handling.

The

controller

provides

organization

through

rack

groupings,

visual

feedback

on

system

status,

control

over

callback

security

options,

fault/alarm

status

and

cor

rective

actions,

diagnostic

tools

for

testing,

verifying

and

tracking

modem

operation,

and automated

modem

con?gu

ration.

The

?exibility

of

the

present

system

provides

numer

ous

interfaces

to

perform

the

control

and

management

functions,

as

described

beloW.

A

general

block

diagram

of

the

rack

modem

system

350

is

shoWn

in

FIG.

3.

The

controller

card

300

is

responsible

for

coordinating

the

activities

of

the

front

panel

display

320

and

the

memory

340.

The

controller

card

300

also

has

an

interface

for

other

devices

310,

such

as

a

modem

rack

370.

The

management

interface

330

provides

for

management

of

the

rack

modem

system

350.

Commands

are

received

from

the

netWork

380

at

netWork

interface

360.

In

one

embodiment,

netWork

interface

360

is

an

ethernet or

HTTP

connection.

In

an

alternate

embodiment,

netWork

interface

360

is

a

Point-to-Point

Protocol

(PPP)

connection.

Other

netWork

connections

may

be

used

Without

departing

from

the

scope

and

spirit

of

the

present

invention.

In

one

embodiment,

the

controller

card

300

is

Multi

Tech’s

MR4800E

controller,

Which

is

described

in

detail

in

the

MR4800E

Rack

Controller

OWner’s

Manual,

Which

Was

incorporated

by

reference

in

its

entirety

above.

This

con

troller

incorporates

a

Motorola

68360

25

MHZ

processor

and

features

four

serial

ports

for

backplane

processing,

PPP

access,

ethernet,

and

a

monitor

port.

The

MR4800E

features

8MB

of

SIMMs

memory,

FLASH

proms

for

program

space,

and

a

RAM

drive.

The

controller

300

performs

all

process

ing

needed

for

con?gurations,

managing

security

tasks (user

names

and

passWords),

and

maintains

fault

logs

and

call

traf?c

logs.

The

controller

300

is

con?gured

to

support

remote

management

via

broWsers

and

Web

pages.

The

controller

300

also

acts

as

an

SNMP

agent

and

performs

FTP

support

and

Telnet

services.

The

MR4800E’s

operating

system

is

a

true

multitasking

real-time

kernel,

including

tasks

for

FTP,

SNMP,

backplane

communications

and

moni

tor

activity.

Additionally,

it

offers

?le

management

command,

such

as

directory

services,

copy

and

rename.

The

MR4800E

controller

alloWs

the

modem

rack

to

be

directly

connected

to

the

Internet,

or

any

TCP/IP

netWork

via

Ethernet,

PPP,

or

HTTP.

Management

of

the

modem

rack

may

be

initiated

anyWhere

the

Internet

access

eXists.

Control

is

implemented

via

HTTP

(i.e.,

broWser

or

Web

page),

or

through

SNMP

management

be

either

an

SNMP

manager,

such

as

HP

OpenVieW,

SUN

NetManage,

IBM

NetVieW,

Novell

NMS,

or

Multi-Tech

proprietary softWare.

Remote

management

is

also

available

via

a

command

line

interface

initiated

over

a

Telnet

session

to

perform

management

operations

on

the

modem

rack.

The

features include,

but

are

not

limited

to,

reset

modems,

set

modems

out

of

service,

and

report

a

particular

modem’s

status.

FTP

?le

transfers

are

used

to

maintain

the

various

?les

used

by

the

controller

300

in

managing

the

operation

of

the

modem

rack

system.

Con?guration

?le,

event

data,

and

security

information

may

be

transported

to

and

from

the

remote

POPs

across

the

Internet

using

FTP.

For

eXample,

a

user

may

create

a

security

?le

at

the

central

site

Which

is

applicable

to

many

remote

sites

and

then

FTP

the

?le

to

those

sites.

Rack

Controller

The

MR4800E

rack

controller

contains

the

processor

and

memory

for

intelligent

SNMP

management

of

the

modems

in

the

rack.

The

front

panel

contains

an

RJ45

connection

for

Ethernet

UTP

attachment

to

a

TCP/IP

Ethernet

netWork

and

10

15

25

35

45

55

65

6

a

9-pin

serial

connection

for

PPP

attachment

to

a

remote

TCP/IP

netWork.

The

front

panel provides

16

tWo-color

LEDs

for

MR4800E

card

status

and 4

Ethernet

status

LEDs.

The

MR4800E

provides

centraliZed

modem

rack

man

agement

to

control

modems,

continuously

monitor

connections,

log

the

data,

and

report

the

fault

events.

The

MR4800E

rack

controller

includes:

one

Motorola

MC68360

25mZ

microprocessor;

8

MB

of

RAM

for

volatile

storage;

2

MB

of

?ash

RAM:

1

MB

for

program

space

and

1

MB

for

nonvolatile

?le

system

space;

Ethernet

10Base-T

connector

Which

is

an

RJ45

for

LAN

connection

to

TCP/IP

Ethernet

netWork;

EIA RS232C

connector

for

PPP

connec

tion

to

a

TCP/IP

Ethernet

netWork;

one

RS232C

con?gura

tion

port

out

of

the

back

of

the

rack;

16 tWo-color

LEDs

for

quick

vieW

of

modem

card

status;

and 4

Ethernet

status

LEDs.

SECURITY

The

MR4800E

controller

includes

a

security

system

to

prevent

unauthoriZed

system

modi?cation

by

Telnet

or

FTP

users

Who

access

the

system

via

the

diagnostic

serial

port

on

the

back

of

the

CC4800

rack.

SNMP

and

MultiModemMan

ager

softWare

security

is

done

by

the

selection

of

SNMP

read

and

Write

community

strings.

There

are

three

levels

of

security,

guest,

operator

and

supervisor.

There

are also

default

user-ids

and

passWords

for

each

level:

Supervisor

Operator

Guest

Security

Level

Can

perform

all

Can

perform

non-

Can

only

vieW

management

destructive

information

commands

management

commands

Default

User

ID

supervisor

operator

guest

Default

Password

supervisor

operator

guest

Once

logged

in

a

user

can

change

their

user-id

and

passWord

USERID—AlloWs

a

user

to

change

their

user

id

PASSWD—AlloWs

a

user

to

change

their

passWord

FILE

SYSTEM

The

MR4800E

utiliZes

a

?le

system

for

storing

con?guration,

security,

and

event

information.

There

are

tWo

drives

on

the

system:

A

and

B.

The

A

drive

is

used

for

non-volatile

information

such

as

con?guration

and

security

database

?les,

and

is

about

1

MB

in

siZe.

The

B

drive

is

for

volatile

information

such

as

event

?les

and

is

about

6.5

MB

in

siZe.

Each

drive

has an

MMM

directory

on

it.

A:\MMM

stores

all

the

con?guration

information

for

the

system.

B:\MMM\MR.LOG

contains

all

of

the

event

?les

for

the

system.

The

?le

system can

be

accessed

either

through

the

command

line

interface

or

by

using

FTP.

COMMAND

LINE

INTERFACE

The

MR4800E

provides

a

complete

command

line

inter

face

for

management

functions

through

either

the

MR4800E

diagnostic

serial

connector

or

by

using

Telnet.

When

?rst

setting

up

the

MR4800E

the

MR4800E

diagnostic

serial

connector

may

be

used

to

set

up

the

system’s

TCP/IP

information

(such

as

it’s

IP

Address,

Default

GateWay

IP

Address,

etc.)

When

the

system

is

accessed,

either

in

Telnet

or

by

using

the

serial

port,

the

user

Will

be

prompted

for a

user

id

and

passWord.

A

user

id

and

passWord

for

the

desired

security

level

is

entered

(see

above

for a

description

of

the

security

levels).

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