KNOM Tutorial 2000 Integrated Management of Access Network Dec. 2000 Ho Chang [email protected] Samsung Electronics.

KNOM Tutorial 2000

Integrated Management of Access Network

Dec. 2000

Ho Chang

[email protected]

Samsung Electronics

Copyright 2000 Samsung Electronics Co.,LTD 2

KNOM Tutorial 2000

Contents

• What is Access Network• Evolution of Access Network -

Voice & Data Over Voice

• Evolution of Access Network -

Voice Over Data

• Managing Converged Voice/Data Network• Conclusion


KNOM Tutorial 2000

What is Access Network• In telephony, an Access Network is the wired connection from a

telephone company's central office in a locality to its customers' telephones at homes and businesses. This connection is usually on a pair of copper wires called twisted pair. The system was originally designed for voice transmission only using analog transmission technology on a single voice channel. Today, your computer's modem makes the conversion between analog signals and digital signals. With Integrated Services Digital Network or Digital Subscriber Line, the local loop can carry digital signals directly and at a much higher bandwidth than they

do for voice only.


KNOM Tutorial 2000

Service Perspectives - 1

• Voice

• Data over Voice

• Data

• Voice over Data


KNOM Tutorial 2000

Service Perspectives - 2

Traffic Estimation in US

0

200

400

600

800

1000

1200

1400

1600

1998 1999 2000 2001 2002 2003

Traffic (Tera Byte / Day)

년도

인터넷트래픽 음성트래픽 인터넷전화


KNOM Tutorial 2000

Network Perspectives - 1

• Subscriber Loop(Local Loop)

• 1G DLC– Digital Loop Carrier– Copper Line

• 2G DLC– Voice(UDLC/IDLC)– Optical Line


KNOM Tutorial 2000

Network Perspectives - 2

• 3G DLC– Voice + Data– Optical Line with Broadband

• Data Access Networks: – DSLAM– HFC– Cable TV– B&A

KNOM Tutorial 2000

Evolution of Access Network

Voice & Data Over Voice


KNOM Tutorial 2000

Subscriber Loop

Local Exchange

PSTNPSTN

Local Exchange

IPIP

NAS

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

• Simply twisted-pair cooper lines from CO to Subscribers


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

1G DLC Network

Local Exchange

PSTNPSTN

Local Exchange

IPIP

N-NAS

DLCDLC DLC DLC

CurbArea

CurbArea


KNOM Tutorial 2000

DS0

DS0

DS0

DS0

DS0

DS0

1G DLC Equipments

CentralOffice

1GDLC

Remote1G

DLC

Phone

Fax

Dial-UpModem

ChannelizedE1 or DS3

LocalExchange

• Multiplexed Cooper Lines from CO to CP• Channelized E1 or DS3


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

CurbArea

CurbArea

2G DLC Network - UDLC

Local Exchange

PSTNPSTN

Local Exchange

IPIP

N-NAS

DLCDLC DLC DLC


KNOM Tutorial 2000

2G DLC Equipments - UDLC

DS0

DS0

DS0

DS0

DS0

DS0

CentralOffice

2GDLC

Remote2G

DLC

Phone

Fax

Dial-UpModem

ChannelizedSTM-1 Local

Exchange

• TDM Optical Lines from CO to CP• Twisted pair cooper lines between CO DLC

and LE• FLC-A or FLC-B


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

CurbArea

CurbArea

2G DLC Network - IDLC

Local Exchange

PSTNPSTN

Local Exchange

IPIP

N-NAS

DLCDLC DLC DLC


KNOM Tutorial 2000

ChannelizedE1

2G DLC Equipments - IDLC

DS0

DS0

DS0

CentralOffice

2GDLC

Remote2G

DLC

Phone

Fax

Dial-UpModem

ChannelizedSTM-1

LocalExchangeChannelized

E1

ChannelizedE1

• TDM Optical Lines from CO to CP• E1 lines between CO DLC and LE• FLC-D


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

CurbArea

CurbArea

3G DLC Network

ATMATM ATMATM

IPIPB-NAS B-NAS

Local Exchange

PSTNPSTN

Local ExchangeDLC DLC DLCDLC


KNOM Tutorial 2000

ChannelizedE1

3G DLC Equipments

CentralOffice

3GDLC

Remote3G

DLC

Phone

Fax

DialModem PC

ATM BasedSTM-1/4/16 Local

Exchange

ChannelizedE1

ChannelizedE1

DS0

CPE

PC

• ATM Based Optical Lines from CO to CP• Directly Transport Data Traffic• FLC-C(Samsung), PathStar(Lucent),

MSAN(Alcatel)


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

DSLAM Network

ATMATM ATMATM

IPIPB-NAS B-NAS

Local Exchange

PSTNPSTN

Local Exchange DSLAMDSLAM

CPE CPE


KNOM Tutorial 2000

DS0

DS0

DS0

DSLAM Equipments

CentralOffice

DSLAM

Phone

Fax

DialModem PC

LocalExchange

DS0

CPE

PC

• Transport High-Speed Data over Existing twisted-pair lines as well as Voice

• DS0 Twisted-Pair Between DSLAM and LE• AceLink(Samsung), Stinger(Lucent),

IMAS(Promatory)

KNOM Tutorial 2000

Evolution of Access Network

Voice Over Data


KNOM Tutorial 2000

Voice over Data

• Voice Over Packet to PSTN– VeDSL(Voice Enabled DSL)– VoDSL Gateway

• PSTN to Packet Network– Access Media Gateway– Trunk Media Gateway


KNOM Tutorial 2000

VeDSL - 1

POTS 512 kbpsupstream

1536 kbpsdownstream

Hz

...

PCM voice channel (64Kbps)

• Voice Enabled DSL• Use one of ADSL Channels as Voice Channel


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

VeDSL - 2

Local Exchange

PSTNPSTN

Local Exchange DSLAMDSLAM

CPE CPE

• Transport Voice PCM Signal itself

• IDLC is normally implemented in DSLAM


KNOM Tutorial 2000

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

VoDSL Gateway

Local Exchange

PSTNPSTN

Local Exchange

DSLAMDSLAM

CPE CPE

VoDSLGateway

VoDSLGateway

• Transport Packetized Voice Signal over ATM• IDLC is normally implemented in DSLAM


KNOM Tutorial 2000

VeDSL vs. VoDSL

AAL2

Echo Canceller

ATM

Compression

Codec

SLIC ADSL Phy

VoDSL (Broadband Loop Emulation Service)

VeDSL (Voice Enabled DSL)

Codec

SLIC ADSL Phy

To DSLAM

To DSLAM


KNOM Tutorial 2000

Trunking Media Gateway

PSTNPSTNPSTNPSTN

SoftSwitch

TrunkingGateway

Long

Distance

,

Intern

ational

SCP

DB

MGCP/H.248

IP/ATMIP/ATM

TrunkingGateway

MGCP/H.248

• Replace Class 4 Switches


KNOM Tutorial 2000

Access Media Gateway

AccessAccessNetworkNetwork

SoftSwitch

AccessGateway

SCP

DB

MGCP/H.248

IP/ATMIP/ATM

AccessGateway

MGCP/H.248

AccessAccessNetworkNetwork

• Replace Class 5 Switches


KNOM Tutorial 2000

Where is the end ?

PACKET Network(IP/ATM)

EnterpriseNetwork

PSTN/ISDN

AccessNetwork

PBX

STP

MobileNetwork

SS7 NetworkNetworkManagement

Center

RADIUSServer

GateKeeper

ITSP/EnterpriseNetwork

Exchange

3rd party Call FeatureServer

MSC/BSC

OSS

RADIUS

H.323

SCP DB

INAP

SS7AP

API

POTSxDSLISDN-BRAISDN-PRAV5.2

MGCP/SIGTRAN/SIP

SIP/SIGTRAN

SS7AP

IntelligentPeripherals

UMS IVR

SoftSwitchSoftSwitch

Element Management

System

POTSISDN-BRA

Internetor

other Networks

M.G

M.G

AccessMediaGatewayTrunking

MediaGateway

Open API

KNOM Tutorial 2000

Managing Converged Access Network


KNOM Tutorial 2000

Reduce Costs

Changing Focus of Integrated Management System

Mechanization

1975

TaskReduction

Automation

1985

TaskElimination

Flow-Through

1995

TimeReduction

ServiceDifferentiation

2005

RevenueEnhancement

Reduce Costs Gain Advantage


KNOM Tutorial 2000

Problems in Integrated Management System

• Nasty Problems– Grandma’s Chair – The Plug

That Won’t Plug In– Too Many Boxes

• Recent Wows


KNOM Tutorial 2000

Grandma’s Chair

• When Implementing a Management System, a Carrier Wants it To Work With the One(s) It Already Has


KNOM Tutorial 2000

Grandma’s Chair in Access Network

DS0

DS0

DS0

DS0

DS0

DS0

CentralOffice

1GDLC

Remote1G

DLC

Phone

Fax

Dial-UpModem

ChannelizedE1 or DS3

LocalExchange

ChannelizedE1

ChannelizedE1

ChannelizedE1

ChannelizedSTM-1

DS0

DS0

DS0

Remote2G

DLC

Phone

Fax

Dial-UpModem

CentralOffice

2GDLC

LocalExchange

DS0

ATM BasedSTM-1/4/16

DS0

DS0Remote

3GDLC

Phone

Fax

Dial-UpModem

PC CPE

CentralOffice

3GDLC


KNOM Tutorial 2000

The Plug That Won’t Plug In

• “Make me a Management System that can plug into any vendor’s NE (today and tomorrow) and provide me the control and information I need. Also, plug together the other Management Systems.”


KNOM Tutorial 2000

Too Many Boxes

• Need Many Management Systems for Small Networks

• Need Many Management Systems for Medium Networks

• Need Many Management Systems for Large Networks


KNOM Tutorial 2000

Too Many Boxes in Access Network Too

CentralOffice

CustomerPremise

ATMATM

IPIPB-NAS

Local Exchange

PSTNPSTN

DSLAM

CPE

EMS for Vendor C

DSLAM

EMS for Vendor A

DSLAM

EMS for Vendor B

DSLAM

EMS for Vendor A

B-NAS

EMS for Vendor C

B-NASEMS for Vendor B

B-NAS

NMS for Vendor A

NMS for Vendor B

NMS for IP Network

NMS for ATM Network

NMS for Fault

Management

ServiceManagement

System for DSLAM


KNOM Tutorial 2000

Recent Wows

• Management System Architecture for Converged Voice/Data Networks

• Large, Correct Databases - Coherent Data Architectures

• Flow-Through Provisioning of Complex Voice/Data Services

• Converged Network Surveillance


KNOM Tutorial 2000

Converged Voice/Data Networks - 1

Local Exchange

PSTNPSTN

Local Exchange

IPIP

N-NAS

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

NMS for Local Exchange


KNOM Tutorial 2000

Converged Voice/Data Networks - 2

CentralOffice

CentralOffice

CustomerPremise

CustomerPremise

CurbArea

CurbArea

ATMATM ATMATM

IPIPB-NAS B-NAS

Local Exchange

PSTNPSTN

Local ExchangeDLC DLC DLCDLC

ServiceManagement

System for Voice


KNOM Tutorial 2000

What Should be Managed

• IADs or CPEs• DLC Systems and DSLAM Systems• NASs, Routers, and IP Switches• ATM Switches• VoP Gateways• Soft Switches• Interoperable Over Variety of Equipments and

Vendors


KNOM Tutorial 2000

How Can Interconnect• OSI Protocols v.s. Internet Protocols• OSI Protocols

– Heavy Weight, Expensive and Poor Performance

– Reliable and Secure

• Internet Protocols– Light Weight and Cheap

– Unreliable, Less-Secure and Limited IP Address Resources

• Interconnect Variety of Equipments and Vendors


KNOM Tutorial 2000

How to Inter-Operate

• TMN CMISE/CMIP

• SNMP V.1/2/3

• CORBA

• WEB based Protocols

• Policy Based Management Protocols


KNOM Tutorial 2000

Integration Over Management Layers

• Element Management Layer

• Network Management Layer

• Service Management Layer

• Flow Through Provisioning from Service Layer to Element Layer

• Correlate Inter-Layer Functionality

KNOM Tutorial 2000

Conclusion


KNOM Tutorial 2000

• Voice to Data

• Data over Voice to Voice over Data

• 64Kbps to 10’s Mbps, over 1000 times Bandwidth

• Convergence of Voice and Data


KNOM Tutorial 2000

• Nasty Problems in Access Network Too– Grandma’s Chair– Too Many Boxes– Too Many Protocols


KNOM Tutorial 2000

• Recent Wows in Access Networks– Converged Voice/Data Network– Flow-Through Provisioning– Integrated Network Surveillance

KNOM Tutorial 2000 Integrated Management of Access Network Dec. 2000 Ho Chang [email protected] Samsung Electronics.

Documents

knom tutorial

voice slide

samsung electronics

data slide

voice data voice

g dlc remote

network perspectives

ds3 slide