Cisco 605-RF - 605 - 7 Mbps DSL Modem Manual de usuario descargar pdf (Pagina 7)

US

6,711,138

B1

3

implemented.

ADSL

is

currently

the

preferred

standard

in

the

industry.

Further,

the

router

R

supports

both

home

networking

(PHY)

layer

functionality

and

Ethernet

(MAC)

layer

functionality.

The

CPU

112

is

further

coupled

to

a

set

of

status

light

emitting

diodes

(LEDs)

and

a

liquid

crystal

display

(LCD)

102,

a

memory

104,

a

button

interface

(I/F)

106,

a

?ash

read

only

memory

(ROM)

108,

a

poWer

subsystem

110

and

a

compact

?ash

slot

100.

The

LEDs

102

may

include

a

home

phoneline

netWork

indicator

to

indicate

active

home

net

Working

functionality

and

a

DSL

indicator

to

indicate

active

DSL

connectivity.

Referring

to

FIG.

2,

an

exemplary

real

time

softWare

architecture

for

the

router

R

is

shoWn.

The

router

R

is

shoWn

including

a

real

time

operating

system

(RTOS)

226.

The

RTOS

226

provides

functions

and

services

to

a

number

of

illustrative

softWare

components:

softWare

plug-ins

200

for

OEM

customiZation,

a

user

interface

202,

a

host

communi

cations

module

204,

a

statistics

and

logging

module

206,

caching

algorithms

208,

a

Web

server

component

210,

a

management

agent

module 212

to

support

SNMP

(Simple

Network

Management

Protocol),

a

security

module

214

to

support

a

?reWall

and

IP

(Internet

Protocol)

source

and

destination

?ltering,

OSI

(Open

System

Interconnection)

layers

5

and

6

(session

and

presentation)

module

216,

a

TCP

(Transmission

Control

Protocol)/UDP

(User

Datagram

Protocol)/ICMP

module

218,

an

IRP

and

ARP

(Address

Resolution

Protocol)

module

220,

an

SAR,

AAL,

and

DSL

control

module

222,

a

MAC

driver

224,

a

DSL

hardWare

driver

228,

a

LAN

hardWare

driver

230

and

a

USB

controller

driver

232.

These

softWare

components

Which

can

run

on

the

CPU

112

may

be

stored

in

the

memory

104

or

the

?ash

ROM

108.

Those

skilled

in

the

art

Will

appreciate

the

techniques

Which

might

be

employed

to

integrate the

illustrated

soft

Ware

and

drivers

Within

the

router

R.

Use

of

softWare

such

as

that

illustrated

enables

the

router

R

to

handle

bridging,

routing,

proxy

and

other

related

services

in

a

residential

environment.

Like

a

typical

router,

the

router

R

can

support

full-featured

bridging

and

routing

capabilities.

Other

arrangements

of

softWare

components

or

modules

to

support

the

router

R

are

possible.

The

OSI

layers

5

and

6

module

216

provides

netWork

routing

stacks

to

implement

a

typical

router

algorithm

such

as

NetWork

Address

Translation

(NAT

The

Web

server

204

is

used

in

con?guring

the

CPU

112,

the

DSL

modem

120

and

the

MAC

118.

Referring

to

FIG.

3,

an

exemplary

digital

subscriber

line/home

phoneline

netWork

router

is

shoWn.

PoWer

is

supplied

to

the router

R

through

a

plug

304.

The

router

R

includes

the

RJ-11

jack

or

connector

130

for

connection

via

a

phone

Wire

300

to

a

Wall

phone

jack 302.

The

single

phone

Wire 300,

Which

handles

both

DSL

connectivity

and

home

phoneline

connectivity,

alloWs

for

ease of

installation

for

the

router

R.

The

phone

Wire

300

serves

to

connect

the

DSL

AFE

126

to

a

public

netWork

and

serves

to

connect

the

1M8

AFE

128

to

a

phoneline

netWork.

The

RJ-11

jack

130

serves

as

both

a

home

phoneline

netWork

interface

and

a

DSL

interface.

As

shoWn

in

FIG.

1,

the

RJ-11

jack

couples

the

DSL AFE

126

and

the

1M8

AFE

128.

The

router

R

presents

only

a

single

RJ-11

jack

130

to

a

user.

With

the

single

phoneline

300

and

the

single

RJ-11

jack

130,

the

router

R

can

handle

concurrent

DSL

connectivity

and

home

phone

line

connectivity.

Referring

to

FIG.

4,

an

exemplary

home

phoneline

net

Work

environment

is

shoWn.

This

netWork

environment

includes

the

digital

subscriber

line/home

phoneline

netWork

router

R.

The

router

R

is

shoWn

coupled

to

a

public

netWork

400

(such

as

the

Public

NetWork)

and

a

phoneline

network

10

15

25

35

45

55

65

4

404.

The

phoneline

netWork

404

is

further

coupled

to

multiple

client

personal

computers

(PCs)

406.

Packets

are

transmitted

to

and

from

the

client

PC

406

on

the

phoneline

netWork

404.

The

phoneline

netWork

400

may,

for

example,

be

a

1

Mbps

home

phoneline

netWork

or

a

10

Mbps

home

phoneline

netWork

effectively

compliant

With

the

standards

of

the

Home

Phoneline

NetWorking

Alliance.

Internet

access

and

other

services

for

the

client

PCs

406

are

accomplished

through

the

router

R.

The

clients

PCs

406

may

connect

to

the

Internet

or

a

remote

LAN.

In

addition, the

client

PCs

406

can

utiliZe

the

Web

server

204

to

properly

con?gure

the

router

R.

While

only

client

PCs

406

are

shoWn

connected

to

the

phoneline

netWork

404,

it

should

be

understood

that

a

variety

of

netWork

devices

(e.g.,

digital

telephones,

digital

televisions

and

laptops)

may

also

be

connected

to

the

phoneline

netWork

404.

Other

con?gurations

of

a

home

phoneline

netWork

environment

supporting

the

router

R

are

possible.

It

should

be

understood

that

the

disclosed

functionality

and

structure

may

be

integrated

into

high

speed

access

products

other

than

a

router or

bridge.

While

DSL

services

are

mentioned

in

connection

With

the

disclosed

router,

it

should

be

understood

that

alternatively

a

router

or other

high

speed

access

device

might

support

derivative,

compliant

or

similar

high

speed

data

services

available

on

the

Public

SWitched

Telephone

NetWork.

We

claim:

1.

A

digital

subscriber

line/home

phoneline

netWork

router,

comprising:

a

central

processing

unit;

a

digital

subscriber

line

modem

coupled

to

the

central

processing

unit;

a

media

access

controller

coupled

to

the

central

process

ing

unit;

a

home

phoneline

netWorking

physical

interface

coupled

to

the

media

access

controller;

a

digital

subscriber

line

analog

front

end

coupled

to

the

digital

subscriber

line

modem;

a

home

phoneline

netWorking

analog

front

end

coupled

to

the

home

phoneline

netWorking

physical

interface;

and

a

customer

premise

equipment/telephone

company

inter

face

coupled

to

the

digital

subscriber

line

analog

front

end

and

the

home

phoneline

netWorking

physical

interface,

Wherein

the

media

access

controller

communicates

With

a

home

phoneline

netWork

via

the

home

phoneline

net

Working

physical

interface,

and

Wherein

the

digital

subscriber

line

analog

front

end,

the

home

phoneline

netWorking

analog

front

end,

and

the

customer

premise

equipment

telephone

company

inter

face

are

provided

on

a

plug-in

card.

2.

The

router

of

claim

1,

Wherein

the

customer

premise

equipment

telephone

company

interface

comprises

an

RJ-11

jack.

3.

The

router

of

claim

1

further

comprising:

a

Wire

coupled

to

the

customer

premise

equipment/

telephone

company

interface

to

support

digital

sub

scriber

line

connectivity

and

home

phoneline

connec

tivity.

4.

The

router

of

claim

1,

Wherein

the

home

phoneline

netWorking

physical

interface

comprises

a

home

netWorking

1M8

physical

layer

device.

5.

The

router

of

claim

1,

further

comprising:

a

universal

serial

bus

controller

coupled

to

the

central

processing

unit.

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