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Telscom Why do we need IPv6 1
IPv6 Why do we need IPv6 ?
Dr. S. Rao
Telscom AG, Switzerland
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
Telscom Why do we need IPv6 3
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
Telscom Why do we need IPv6 4
The Interconnected IP World
Telscom Why do we need IPv6 5
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
Telscom Why do we need IPv6 6
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
Telscom Why do we need IPv6 7
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
Telscom Why do we need IPv6 8
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.
Telscom Why do we need IPv6 9
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
Telscom Why do we need IPv6 10
Initiatives of IPv6
• 6REN / 6TAP
• 6Bone
• vBNS IPv6
• TAHI
• KAME
• WIDE
• NTTv6net
• Military
• RNRT
• Eurescom
• 6INIT
• ….
Telscom Why do we need IPv6 11
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
Telscom Why do we need IPv6 12
European Initiative: 6INIT Project
• Costs: 4,238,248 euro (approx.)
• Duration: 16 Months
• Partners
InternationalSponsoringPartners
Telscom Why do we need IPv6 13
6INIT project framework
Evaluation/TestingDevelopment
Operation
6INITEU funding
Private funding/collaboration
Telscom Why do we need IPv6 14
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
Telscom Why do we need IPv6 15
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
Telscom Why do we need IPv6 16
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
Telscom Why do we need IPv6 17
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
Telscom Why do we need IPv6 18
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
Telscom Why do we need IPv6 19
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
Telscom Why do we need IPv6 20
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
Telscom Why do we need IPv6 21
Global dimension of EU Trials
Japan
Canada
Telscom Why do we need IPv6 22
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 ...
Telscom Why do we need IPv6 23
6INIT to demonstrate
an IPv6-based European Internet
as one of the
Strategic Investments
in the building of the
European Business Future
Telscom Why do we need IPv6 24
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
Telscom Why do we need IPv6 25
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
Telscom Why do we need IPv6 26
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