ipv6 a long term solution for ipv4 address shortage · ipv6 a long term solution for ipv4 address...

IPv6 a long term solution for IPv4 address shortage

AfriNIC-6 Abuja Meeting

May 2nd 2007

Modou SALL

Head of Backbone & Collecte Service

Network Division

Sonatel

[email protected]

2

AGENDAAGENDAAGENDA

� The Limits of IPv4

� Facts and reasons for IPv6

� IPv6 a new Challenge for Africa

� Case Study : Sonatel’s IPv6 deployment

3

THE LIMITS OF IPv4 THE LIMITS OF IPv4 THE LIMITS OF IPv4

� IPv4 Address Allocation History

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1980 1985 1990 1995 2000 2005 2010

1981 – IPv4 protocol published

– IP addresses used to uniquely identify

and locate IP devices

1985 – 1/16 of total space




2002.5 – 2/3 of total space

This consumption despite increasingly intense conservation efforts

PPP/DHCP address sharing

NAT (network address translation)

CIDR (classless interdomain routing)

Source: Neil Lovering, Cisco Systems “IPv6 and Semantic Interoperability”

(http://colab.cim3.net/file/work/SICoP/2006-04-2728/NLovering04272006.ppt )

Current estimates predict that all IPv4 addresses will be used between 2008 and

2015, the most common prediction is sometime in 2010.

4

� IPv4 a restricted addressing space and a Non Equal distribution

An addressing on 32 bits representing approximately 4.2 billion addresses

Total IPv4 addresses allocated by RIR

84,73 87,82

175,52

0

50

100

150

200

Year 2001 Year 2003 Year 2005

Million Addresses

Millions Addresses

The total IPv4 addresses available is almost exactly 1.3 billion in January 1st

2007 this out of 3706.65 million usable IPv4 addresses

Non Equal Geographical Distribution (> 50% USA)

Source 2006 IPv4 address use report

THE LIMITS OF IPv4THE LIMITS OF IPv4THE LIMITS OF IPv4

5

� Internet Growth INTERNET USAGE GROWTH

16 3670

147

248

361

513

587

719

817

1018

1093

0

200

400

600

800

1000

1200

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

Year

Millions of Users

NUMBER OF USERS

1,093 millions of users in Dec. 06

16.6% of Word Population

How can we address the future

Worldwide population? (2 billion in

the next 10-12 years)

Word Internet Users

3%

35%

28%

2%

21%

9% 2%Africa

Asia

Europe

Middle East

North America

Latin America

Oceania

35% of word internet

Users are located in ASIA

In Asia the available IPv4 address

space is already exhausted

Emerging Countries need Address

space

Source internetwordstats.com

Source internetwordstats.com


6

� Mobile Growth

Over 2.6 billion mobile subscribers wordwide

Over 100% penetration for more mature mobile markets

3G roll-outs are progressing, and 10% penetration level are reached in some

Countries

In the developing market of Africa 85% of all telephone lines are mobile and the

Growing of 3G/HSDPA mobile system will really increase the development of

Internet Access

(Source : 2007 Global Mobile Communications Statistics, trends and forecast- Paul Budde Communication Pty Ltd)

New Generation of Internet Devices are introduced for Mobile Internet :

- PDAs

- Mobiles Phone

- Tablet PCs

- Etc.


7

� NGN-Next Generation Network

Evolution of the networks towards whole IP with a fixed/mobile convergence:

- IP/MPLS Based Infrastructure for voice, video and data. Standardized, cheap and

open access

- IP addressing will bring in not just people and computers to the network but also

cars, refrigerators, tv-sets, sensor system, home games and many more.

-A QoS multiple-broadband network and will support seamless mobility providing

users with a ubiquitous provision of service

- Multiple-Technologies : UMTS/HSxPA, xDSL, LTE, FTTx, Wimax etc.

THE ANSWER TO THAT CHALLENGE IS IPv6


8

Broadband everywhereBroadband everywhere

Service Platforms Service Platforms

inter working with inter working with

networknetwork

IP NetworkIP Network1

2

Multi access intelligent Multi access intelligent

devicesdevices

45

Mobility everywhere Mobility everywhere 3

Service platforms

2

Physical networks /

transport

Physical networks /

transport

1

Transac

tion syst

ems

3

Source: FT investor day 11/2003



9


- IMS based for Voice, Video and Data convergence in fixed/mobile network

- Broadband Access with ‘’ Always on Mode’’

- Mobility Services Everywhere around GPRS/UMTS/HxDPA/Wifi/Wimax

- Multi access intelligent Devices

- Connected electronics and communicating vehicles

- The robotic applications and the sensors systems

THE ANSWER TO THAT CHALLENGE IS IPv6


10

FACTS AND REASONS FOR IPv6FACTS AND REASONS FOR IPv6FACTS AND REASONS FOR IPv6

� IPv6 a very large addressing space

Addressing on 128 bits

Available Stock of 2128 Addresses- (3.4 x 1038 ~)

This stock will make possible to face:

- Growth of Internet in all the geographical areas

- To satisfy the needs for new applications :

Mobile Internet

Large Public Electronic connected

Sensors system fixed or mobile,

Needs rising from the “always one” mode for Broadband Access

- The “end to end” mode restoration for some applications like VoIP

11


The number of mobile devices and devices with embedded Internet stacks

will grow by magnitudes over the following years (the ongoing use of IPv4

would create poorly interconnected islands of IP networks with limited

mobility and security between them)

IPv6 is MANDATORY for the 3GPP UMTS IMS (IP Multimedia Subsystem) in

release 5

IPv6 will bring better support for security and quality of service for mobility

IPv6 allows the accesses since any point of the network with the principle

of the auto configuration

� IPv6 ensures a better management of mobility

IPv6 is designed taking into account the mobile networks, which are expected

to be ubiquitous networks of the future providing always on-line, anytime and

anywhere

12


� VoIPv6 in a fixe/mobile converged network context

PSTN

3G

Access

3G

Access

IMSIMS

IPv6 network

IPv4 network

PSTN

Interconnection

media gateways

VoIPv6 on

3G mobile

phones

IPv4 VoIP service

VoIPv6 on WiFi

phonesIPv6 Centrex

phones

Enterprise

VoIPv6

Gatekeeper /

Call Server

13

IPv6 A NEW CHALLENGE FOR AFRICAIPv6 A NEW CHALLENGE FOR AFRICAIPv6 A NEW CHALLENGE FOR AFRICA

IPv6 is an opportunity for Africa to reduce Digital Divide

� Telecom Operators

IPv6 will (soon) come and it's better to be prepared for it!

Development of IPv6 competencies and expertise

Hands-on training

Set IPv6 testbeds

Participation and involvement in the national and regional (AfriNIC)

IPv6 initiatives

Plan of IPv6 Integration in the operational networks (Core and

Access)

The IPv6 protocol is stable and most of the commercial products are IPv6 ready

(equipments and operational systems)

14


� Telecom Operators

Prepare the migration for existing services

– Establishment of a migration roadmap per service (progressive

migration of the services according to the availability and maturity of

the equipments),

In coherence with the renewal of the equipment and the terminals :

– To minimise the CAPEX

– The launched RFP will have obligatorily an IPv6 dedicated

chapter

The strategy of migration “dual-stack” is recommended for its reliability and

its flexibility:

– It will be focused in priority on the applications and the CPE

The new services will have to be studied « V6 ready »

15


� African Universities

- To integrate IPv6 modules in the network trainings

- To encourage the field of fundamental and applied research in IPv6

- Implementation of an IPv6 Backbone inter-connecting the main African

Universities

- Development of the Technical cooperation with Telecom Operators

16

CASE STUDY : SONATEL’s IPv6 DEPLOYMENTCASE STUDY :CASE STUDY : SONATELSONATEL’’ss IPv6 DEPLOYMENTIPv6 DEPLOYMENT

� Acquisition of an IPv6 Prefix from AfriNIC 2001:4278::/32

� A Native IPv6 connectivity with 6bone via France Telecom

� Development of IPv6 Competencies

� Active member Task Force IPv6 Senegal

17

CASE STUDY : SONATEL’s IPv6 DEPLOYMENTCASE STUDY : CASE STUDY : SONATELSONATEL’’ss IPv6 DEPLOYMENTIPv6 DEPLOYMENT

� ADSLv6 connectivity service (- Ongoing)

� Videoconferencing IPv6 (- Ongoing)

� VPNv6 (- Planned Q4 2007)

� E-learningv6 (Multicast)

� P2P Applications

� IPv6 applications in the context of mobility: VoIPv6 & Multimedia over

WiFi/WiMAX/3G

� VoIPv6

18

Réseau IPv6 de

France Telecom's

Réseau IPv6

de SONATELFrance Telecom's IPv6

International network

(OpenTransitv6)

Latency, Packet loss, Jitter RTP metrics

France France France France Telecom/ParisTelecom/ParisTelecom/ParisTelecom/Paris

Tester le comportement de la visioconférence à travers une liaison IPv6 longue distance caractérisée par

un fort taux de perte de paquets, gigue, délai

1) Phase 1: Tester en local chez SONATEL

2) Phase 2: Tester entre Paris (FT) et Dakar(SONATEL)

Dakar/SONATELDakar/SONATELDakar/SONATELDakar/SONATEL

FranceFranceFranceFrance SenegalSenegalSenegalSenegal

CASE STUDY : SONATEL’s IPv6 DEPLOYMENT Videoconferencing Tests with FTCASE STUDY : CASE STUDY : SONATELSONATEL’’ss IPv6 DEPLOYMENT IPv6 DEPLOYMENT Videoconferencing Tests withVideoconferencing Tests with FTFT

19

6VP

E

6VP

E

6VP

E

Backbone MPLS

(IPv4)

Site1

Client SONATEL

Site2

Client SONATEL

Site2

Client de SONATELK

Site1

Client de SONATEL

IPv6 link

MP-iBGP sessions

VRF

VRF

VRF

VRF

P routers

CE

CE

CE

CE

Description de l'expérimentation

– Mettre les VPNv6 au même niveau que les VPNv4

– Convergence entre IPv6 et IPv4 sur MPLS VPN (RFC 2547bis)

– Résout les limitations techniques des solutions basées sur IP-Sec

– Solutions sur la technologie MPLS largement épprouvée.

– Equipements industriels disponibles

– Ne rermet pas en cause le coeur de réseau IPv4 (donc économique)

– Seuls les routeurs de péréphérie(PE) sont impactés

CASE STUDY : SONATEL’s IPv6 DEPLOYMENT VPNv6 Tests CASE STUDY : CASE STUDY : SONATELSONATEL’’ss IPv6 DEPLOYMENT IPv6 DEPLOYMENT VPNv6 Tests VPNv6 Tests

20

PAS (Radius Proxy)

Internet

RADIUS ISP

Authentication

CPE Backbone

De Collecte GE

RouterDSLAM

POP

BRAS IPv4PC

Authentication

IPv6/PPP

OBJECTIF : sur la base d'un accès ADSLv4

IPv4/PPP

Fournir un accès ADSLv6

Core NetworkUser

Network

Local Loop Backhaul Network

BRAS IPv6

CASE STUDY : SONATEL’s IPv6 DEPLOYMENT ADSLv6 Tests CASE STUDY : CASE STUDY : SONATELSONATEL’’ss IPv6 DEPLOYMENT IPv6 DEPLOYMENT ADSLv6 Tests ADSLv6 Tests

21

Thank You

ipv6 a long term solution for ipv4 address shortage · ipv6 a long term solution for ipv4 address...

Documents