©2008 Tata Communications, Ltd. All Rights Reserved Tata Communications IPv6 Development Update Beijing IPv6 Summit 14 th - 16 th April 2008 Hon Kit, Lam Director, IP Product Development, Global IP and VPN Services

1 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 Tata Communications Feb-2008 (VSNL, VSNLI & TG)

2 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

3 Round the World Global IP Infrastructure

4 End-Jan-2008 Cable Cuts in Middle East Endorsement 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

5 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

6 IMEWE design as announced in February 2008 Expected Length ~ 13,000km 3.84 Tb capacity on 3 fiber pairs Target RFS: 2H2009

7 India to Europe Network Diversity Combining 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

8 TGN - Intra Asia Cable Interconnect Australia - Japan Cable Guam - Philippines Cable Future USA Connection Multiple Routes/Choice Optimized Latency Unprecedented route choice and reliability Length: 6,800 km # of Fiber Pairs:4 Initial Capacity:320Gbps Design Capacity:3.84Tbps Speeds available: STM-1/4/16 & 10G Target RFSQ4-2008

9 IPV6 network availability AS POPs with 65+ IPv6/IPv4 dual stack access PoP

10 IPV6 network availability AS6453

11 IPV6 network availability AS6453

12 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

13 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

14 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 : IPv6 address block : 2001:DF9::1/32

15 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 Storage Sensor Device

16 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