©2008 Tata Communications, Ltd. All Rights Reserved

Tata CommunicationsIPv6 Development Update

Beijing IPv6 Summit

14th - 16th April 2008

Hon Kit, Lam

Director, IP Product Development, Global IP and VPN Services

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Tata Group

125-year old largest private sector group

$24 billion in revenues

275,000 Employees

3% of India’s Gross Domestic Product (GDP)

Conglomerate comprising 93 operating companies

Acquired VSNL in February 2002

TATA Steel recently acquired Corus for $23 billion

Tata Consultancy Services (TCS) Asia’s largest software & systems integration services company 33 countries across 5 continent

Tata Group Financial Stability & IT Capabilities

TataCommunicationsFeb-2008(VSNL, VSNLI & TG)

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Tata Communications Leadership Landscape

State-of-the-art Infrastructure

200,000 route km global network

300 points of presence (PoPs)

20+ terabit submarine capacity

More than 200 IP PoPs globally with 60+ IPv6 Ready

Over 700G IP BB

Customers

1,500 global carriers

600 mobile operators

“Fortune 1000” of India

5,000+ SMEs in India

500,000 Internet and broadband subs

Industry Leader

#1 global wholesale voice

#1 global submarine cable capacity

#1 intnl. long distance services in India

#1 enterprise data services in India

Tier-1 global ISP and #1 Internet services in India

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Round the World Global IP Infrastructure

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End-Jan-2008 Cable Cuts in Middle EastEndorsement of the round the globe IP network during SMW4 and FLAG cable cut

We showed that we have fast response to SMW4 & FLAG cable cut in end-Jan-08 to restore IP backbone capacity for Middle East and India

Most Impacted Countries

Network Restored

Note: Reference from Renesys

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EurAsia Express (TGN-EA)

Tata Communications Joint Build with Telecom Egypt for an express route cable

• Expected Length 9,000km • Planned for 2 fiber pairs• Design Capacity: 1.28Tbps• Target RFS: early 2009

TGN-EA

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IMEWE design as announced in February 2008

Expected Length ~ 13,000km 3.84 Tb capacity on 3 fiber pairs Target RFS: 2H2009

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India to Europe Network DiversityCombining SMW-4, IMEWE, TGN-EA, SMW-3 will provide Tata Communication a four route from India to Europe and increase South Asia – Middle East – Europe diversity

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TGN - Intra Asia Cable

Interconnect Australia - Japan CableGuam - Philippines CableFuture USA Connection

• Multiple Routes/Choice• Optimized Latency

Unprecedented routechoice and reliability

Length: 6,800 km# of Fiber Pairs: 4Initial Capacity: 320GbpsDesign Capacity: 3.84TbpsSpeeds available: STM-1/4/16 & 10GTarget RFS Q4-2008

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IPV6 network availability AS6453

200+ POPs with 65+ IPv6/IPv4 dual stack access PoP

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IPV6 network availability AS6453

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IPV6 network availability AS6453

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India IP Network Coverage (AS 4755) 120+ POP locations across India.

3-tier Hierarchical topology for better management.

IPv4 and IPv6 access in Tier 1 and tier 2 cities

Rollout 16 cites with Dual Stack access in India in year 2007:

Mumbai, Chennai, Delhi, Bangalore, Hyderabad, Kolkata, Pune, Ahmedabad Ernakulam, Lucknow, Jaipur, Jailandhar, Gurgaon, Surat, Bhopal and Colmbatore

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AS 6453 & AS 4755

IPv6 connectivity options

Offering:

Dual stack, tunneling &

tunnel broker access.

IPv6 AAAA DNS look up

service.

customer prefixes /48 or

larger size.

RFC 2858 IPv6 BGP-4 as EGP.

Coverage :

Dual stack IPv4/IPv6 in

65+ locations globally

Ips Resources:

IPv6 « slash 32’s » from

ARIN, APNIC, RIPE and

Afrinic

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Support IPv6 connectivity in Key India event - SANOG 10 & ICANN India in New Delhi

AS10201

AS24555

AS4755

AS 6453 and IPv6 Internet

Mumbai Hong Kong

Mumbai Tunnel Termination Router(LNS)

IPv6oIP Tunnel

Delhi

Tata Comm Customer•Local tunnel IP address : 169.223.1.254 •IPv6 address block : 2001:DF9::1/32

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IPv6 Applications / Requirement in India

IPv6 address - A

There is growing demand for p2p mobile applications in India There are 57.8 million and 31.3 million Internet subscribers at the end of Dec & Mar 2007 respectively, who are accessing Internet through mobile handset (GSM/ CDMA). (Source: TRAI report 2008)

Growth rate is around 28% per quarter (I.e. around 110% per year).

Potential sensor device application to capture data from remote locations.

IPv6 address - B

IPv6

e.g. Interactive Game Data

IPv6

Usage Data

StorageSensor Device

Sensor Device

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Did our early emphasis on IPv6 pay off?

Visibility, early mover advantage and differentiator in the marketplace If carrier A offers IPv4 only and carrier B offers both IPv4 and IPv6, other criteria being

similar, who would a tier 2 ISP carrier base go for? 40+ of our major customers connect in both IPv4 and IPv6

IPv6 support is becoming a must to win a bid Of around 60 major RFQ’s for IP transit answered both in 2006 and 2007, about 50

included questions on IPv6 support, roughly half gave points to IPv6 support in their response evaluation and 10 had IPv6 support as mandatory or exclusion factor if not compliant.

Next step: stimulate growth of the IPv6 component of the overall IP traffic.

Thank You