Telscom Why do we need IPv6 1

IPv6 Why do we need IPv6 ?

Dr. S. Rao

Telscom AG, Switzerland

Rao@telscom.ch

Telscom Why do we need IPv6 2

Internet - the way forward

• Internet today– Millions of users

– Web, email, low-quality audio & video

– Applications adapt to underlying technology

• Next Generation Network of tomorrow– Billions of users and devices

– Convergence of applications and services

– New technologies lead to novel applications

– Building a real information society with ‘Always-on Network’

– Global village a reality

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Networked Society

IP

• Different types of network infrastructures are linked through common protocol

• All communication will be based on packets running on circuit, packet and wireless networks

• There will be convergence at service level to reach any one from anywhere at any time

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The Interconnected IP World

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Address Boom

+ Wireless Growth

Internet Growth

+ Always-On

Internet 2000 is a baby!Internet 2000 is a baby!

100 IP Adds/person!

+ Info Soft Appliances

7 Million Web Sites (est. Jun 2000)700+ Million web pages10k+ ISPs worldwide (5k+ in U.S.); numerous new servicesTraffic growth 100-1000%/year reported

700 M - 1000 M users by 2002

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IPv6 Features

• IPv6 has been recognised as the future protocol by IETF, Eurescom, and 3GPP and vendors– Uses 128 bit address space and Hierarchical addressing

• Improved routing based on aggregated addresses

– Autoconfiguration• Computers assign themselves an Ipv6 address

– IP Mobility• End devices can roam onto other networks

– Improved security• Authentication and encryption at the packet level

– Better support for QoS• Integrated QoS, multicasting

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IPv4 vs IPv6

Y

N? Y

N

NY?

IPv4 ((NATNAT)))) IPv6 IPv4 ((NATNAT)))) IPv6

1970 2001

• Address Space Shortage• Security• Cost of System Management

• Lack of Capability needed for Next Generation Applications

IPv4 IPv6

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NGN Requirements - IPv6

• Requirements– Scalability of networks with address space,QoS and security, which are basic

features of IPv6 networks

– Connectivity with existing IPv4 networks is necessary

– IPv6 should happen from the edges, not from the core.

– Applications are important for pushing IPv6• it has to be transparent to the end user

– Interoperability with IPv4 has a cost• 100% interoperability is not always necessary

– We need a credible transition story.

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IP headers compared

• Variable length• 14 different fields• 4 byte addresses

• Streamlined header• 8 different fields• Including flow label• 16 byte addresses • Fixed length of 40 bytes• Supports Extension Headers• No checksum field

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Initiatives of IPv6

• 6REN / 6TAP

• 6Bone

• vBNS IPv6

• TAHI

• KAME

• WIDE

• NTTv6net

• Military

• RNRT

• Eurescom

• 6INIT

• ….

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Significance for India

• India is the GURU in information technology and are showing the way forward– Bangalore has been recognised as the BRAIN Valley of the Globe

• The potential of internet is just being realised by common people and soon it will explode– Department of post can go on holidays as more and more

communication is going electronically– In matter of 10 years each one of the billion would need an IP

address: India would be the major consumer of addresses• But where do you find them ? – IPv6 is the only solution

– Be a leader and not a follower• Take-on IPv6 now

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European Initiative: 6INIT Project

• Costs: 4,238,248 euro (approx.)

• Duration: 16 Months

• Partners

InternationalSponsoringPartners

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6INIT project framework

Evaluation/TestingDevelopment

Operation

6INITEU funding

Private funding/collaboration

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6INIT activities

Network:Define and develop/deploy/co-ordinate a Pan European IPv6 network - with links to the rest of the world

Interworking:Investigate and deploy an IPv6/IPv4 interworking mechanisms

Applications:Define and develop/port a number of multimedia applications to IPv6

Trials:Trial the applications on the network, using native IPv6 features

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Network Requirements

• Pan European IPv6 Network with:– DNS

– QoS - Diffserv

– IPsec: tunnel mode for VPN’s etc

– v4-v6 interworking via NAT-PT (ALG’s for DNS, ftp, SIP, Quake …), plus some use of tunnel broker and 6to4

– Multiple sTLA’s

– BGP4+ peering

– IPv6 Exchange

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IPv4 and IPv6 networks Interworking

IPv4/IPv6dual stack router

IPv4 InternetIPv4/IPv6

dual stack router

IPv6 tunneledthrough the IPv4 Internet

IPv6 host IPv6 host

End-to-end IPv6

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IPv6 Native Services

IPv6router

IPv6router

IPv6 host IPv6 host

End-to-end IPv6

router-to-router PVCsATM is a great multiplexer

Initial participants were R&E networks

6INIT IPv6 Native network with ATM transport

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6INIT IPv6 deployment

• Start with five regional clusters:– UK, Germany, Greece, Scandinavia, France

• Each cluster will be stand alone ie– DNS, Interworking with v4,

• Then interconnect the clusters primarily via an IPv6 exchange to form the Pan European IPv6 Network

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Cluster Interconnection

TunnelTermination

RouteServer

Switch

Native IPv6 BGP4+

IPv6 BGP4+ in IPv4 tunnel

Firewall

6INITIPv6

Cluster

Ten 155Ethernetor ATM

ATM

GlobalIPv4Internet

6INITIPv6

Cluster

6INITIPv6

Cluster

UK6X

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Pan-European Trials

UKScandinavia

BT, UoS,NTT, Telscom

GermanyFrance

Greece

Thomson,Renata II

Intracom

NATPT

EXInternet

Tunnels

Telia, Telebit,Netmedia,

erFP

T-Nova, IABGNTT, CRC

NATPT

NATPT

NATPT

Native IPv6 via TEN 155

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Global dimension of EU Trials

Japan

Canada

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Applications

• Major Applications:– VoIPv6: SIP initially, may try H323 (Telscom)

– Newspaper printing

– Multimedia News on Demand (NoD)

– Direct Online Trading (erDOT)

• Universal Applications– Mail, ftp, web server/browser …

– Multimedia web, audio and video tools

– Games: Quake ...

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6INIT to demonstrate

an IPv6-based European Internet

as one of the

Strategic Investments

in the building of the

European Business Future

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Recent announcements• Both Nokia and Ericsson have adopted IPv6 for their

Mobile Internet and M-Commerce

• BT with Smartone have announced the Mobile internet trials

• NTT announced the first international IPv6 ISP

• Microsoft, SUN, CISCO,… have announced their support for IPv6

• Request of 32 million addresses for GPRS, by GSM Assn.

• 3GPP adopted IPv6 for UMTS

• Electrolux announnced the networked home appliances

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Conclusions

• Internet is the network of the future to provide ‘Always-On’ connectivity among all kinds of terminals

• will reach not only all citizens around the world, but also the home appliances

• IPv6 is the solution to solve the address crunch, security and QoS issues of the future networked society

• 6INIT project is leading the European first IPv6 experiments in the framework of IST

• It is time for India to take-on IPv6 and show the world the power of information technology to the common citizen

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FinallyFinally

The longer the upgrade is postponed, the costlier it will be and the more complicated the transition

will be !

(compare to Y2K!)

Time to take-up v6

YYv4v4