©2008 Tata Communications, Ltd. All Rights Reserved

WAN Ethernet

WAN Ethernet ServicesAnalyst Briefing

October 2008

1WAN Ethernet

Who is Tata Communications?

State-of-the-art Infrastructure200,000 route km global network

300 points of presence (PoPs)

20+ terabit submarine capacity

~1M sq. feet of data center space

Customers1,500 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 international long distance services in India

#1 enterprise data services in India

#1 Internet services in India

2WAN Ethernet

Ethernet | Standing apart from the crowd

3WAN Ethernet

Tata Communications has taken a more expansive approach to Ethernet

TechnologyTata Communications has deployed 2 platforms globally to deliver Ethernet

Ethernet over MPLSEthernet over SONET/SDH

Services are designed to provide flexibility to both Carriers and EnterprisesFootprint

Tata Communications offers metro and national services within IndiaAble to provide services to almost any location in India

Tata Communications offers global services to 32 major business centers outside India40 major business centers including the 8 Tier one cities within India

ServicesTata Communications offers the widest selection of servicesTata Communications offers a managed service available globallyTata Communications offers

Point to Point, Point to Multipoint and Multipoint configurationsClasses of service (interclass bursting) and transparent pipesWide SLA selection, bandwidth flexibility and MEF certification

4WAN Ethernet

Ethernet Service Portfolio

Point to PointGlobal Dedicated Ethernet National Dedicated Ethernet Priority Ethernet (National and Global)

Point to Multipoint (Hub and Spoke)Priority Point to Multipoint Ethernet (National and Global) Dedicated Point to Multipoint Ethernet (National and Global)

Multipoint (Any to Any)Dedicated Multipoint Ethernet (National and Global)

OptionsEnterprise SLA Option

5WAN Ethernet

For more information about MEF Certification, please go to

www.metroethernetforum.com

Quality Service, Independent verification, Global recognition

Tata Communications is very proud to offer the first MEF 9 and MEF 14 certified global service

Global Dedicated Ethernet

Tata Communications is very proud to offer the first MEF 9 certified India service

National Dedicated Ethernet

Independent agency performed over 400 tests on the Tata network

Tata Communications joins a special group of providers who offer MEF Certified Services

6WAN Ethernet

Current Global Locations

7WAN Ethernet

Global Expansion continues:

1. Zurich, Switzerland2. Brussels, Belgium3. Stockholm, Sweden4. Warsaw Poland5. Dubai, United Arab Emirates6. Seattle, Washington, USA7. Atlanta, Georgia, USA8. Miami, Florida, USA9. Manila, Philippines10.Kuala Lumpur, Malaysia

11.Bangkok, Thailand12.China

1. Beijing2. Shanghai3. Guangzhou4. Shenzhen

Potential new sites1. South Korea2. Qtar

8WAN Ethernet

National Footprint In India

ChandigarhAmbala

Karnal

Delhi

JaipurAgra

Gwalior

ItarsiBhopal

NagpurJalgaon

Vadodra

Bhavnagar

Nadiad

Surat

Nasik

KalyanAurangabad

MUMBAI

HYDERABAD

Kolhapur

Panaji

Guntur

Rajahmundry

Hubli

CHENNAI

MysoreSalemErode

ThrissurERNAKULAM

TRIVENDRUMQuilon

KottayamAlappuzha

Madurai

TrichyThanjavur

VelloreMANGALORE

KannurKozhikode

AmritsarJalandhar

Ludhiana

HissarRohtak

Bhatinda

Udaipur

Karwar

TuticorinTirunelvelli

Belgaum

Vizag

Patiala

Virudhunagar

Lucknow

Bareilly

Kanpur

Allahabad

Fatehpur

PatnaVaranasi

Arrah

Cuddalore

Nellore

VijayawadaEluru

SataraSholapur

Jamnagar

Junagarh

Pune

Valsad

Bharuch

Raipur

Jaunpur

Kachipuram

Chapra

CuttackBhubaneshwar

Kharaghpur

ChittoorKolar

COIMBATORE

BiaoraUjjain

Krishnagiri

Hassan

Medikeri

TirupatiSMW-3

GurgaonGhaziabad

Ranchi KolkataMehsana

Rajkot

Ahmedabad

Delhi

ChandigarhAmbala

Karnal

GhaziabadGurgaon

JaipurGwalior

Itarsi

Bhopal

NagpurJalgaon

Vadodra

Bhavnagar

Nadiad

Surat

Nasik

KalyanAurangabad

MUMBAI

HYDERABADKolhapur

Panaji

Guntur

Rajahmundry

Hubli

CHENNAI

MysoreSalemErode

ERNAKULAM

TRIVENDRUMQuilon

KottayamAlappuzha

Madurai

TrichyThanjavur

VelloreMANGALORE

KannurKozhikode

AmritsarJalandhar

Ludhiana

HissarRohtak

Bhatinda

Mehsana

Ajmer

Udaipur

Karwar

TuticorinTirunelvelli

Belgaum

Vizag

Patiala

Virudhunagar

Lucknow

Bareilly

Kanpur Fatehpur

PatnaVaranasi

Arrah

Ranchi Kolkata

Cuddalore

Ahmedabad

Nellore

VijayawadaEluru

Satara

Jamnagar

Junagarh

Pune

Valsad

Bharuch

Raipur

Jaunpur

Kachipuram

Chapra

CuttackBhubaneshwar

Kharaghpur

ChittoorKolar

BiaoraUjjain

Dewas

Hassan

Medikeri

TirupatiSMW-3

Karaikkudi

DavangereShimoga

ChickmagaloreTumkur

SrikakulamWarrangal

Karimnagar

Chandrapur

Raipur

Jabalpur

Bhandara

NarsinghpurSeoni

BalaghatBilaspur

Mandla

AkolaEdalabad

Khandwa

Indore

VidishaDamoh

Ambala

Karnal

Ludhiana

Rohtak

Patiala

PathankotHoshiarpur

PatnaVaranasi

Arrah Chapra

Meerut

JhansiChattarpur

Rewa

TonkBhilwara

Rewari Faridabad

Shivpuri

Guna

RatlamBanswara

Godhra

Dhule Buldana

ParbhaniNanded

NizamabadAhmednagar

Osmanabad

Gulbarga

Bidar

BellaryRaichur

Mehboobnagar

Sangareddy

Anantpur

BANGALORE

Pondicherry

PaliJodhpur

JammuUdhampur

Srinagar

Shimla

Sriganganagar

Sikar

Churu

MuzzarnagarSaharanpur

Dehradun

Farakka

SiliguriBongaigaon

Shillong

GuwahatiMisa

Tejpur

Itanagar

Kohima

Imphal

AizawalAgartala

Surendranagar

Palanpur

RaigarhRourkela

Jamshedpur

Chittorgarh

Palakkad

Moradabad

Roorkee

Berhampur

BastiBarabanki

Gorakhpur

PannaSatna Asansol

40,000 km fiber transmission network –reaching 300 major towns

Point to Point, Point to Multipoint and Multipoint Ethernet services to 120 cities

Fiber-optic Metro Area Networks in top cities

9WAN Ethernet

Current Customer facts

•We are selling to Carrier and Enterprise customers•Some Carrier customers are white labeling our Ethernet services•Current customers come from all market segments•Most customers stay with our service for multiple years. Very low churn.

• 95% of our customers remain on our Ethernet services•Non-service affecting upgrades is the most popular feature

• Used by almost every customer• Key to Tata Communication’s success with this feature, we do not require a contract term

renewal• This feature provides customers with the flexibility they need to adjust to their changing network

•Customers migrating from Layer 1 and Layer 3 services• Migrating from Layer 1 to reduce costs

• Ethernet “sweet spots” are: 10-30 Meg, 50 Meg, 100 Meg, 200 – 500 Meg• Migrating from Layer 3 to gain more control of their network

10WAN Ethernet

Customer stories

An international Pharmaceutical company: 3 years ago started with 4 Meg. Today they have 40 Meg and have performed 5 upgrades over the last 3 years.

An international Finance company: Today they have 3 small circuits with us that have been operational for over 2 years. The customer has performed several upgrades plus moved to our managed solution (Enterprise SLA Option) when it became available. Today they are looking at our Ethernet service for their backbone to avoid the DS3 to STM1 jump in bandwidth and reduce costs.

Carrier Customer: Is white labeling our service today to offer a global solution to their customer set without a global investment. The carrier uses its relationships with its current customer base to obtain more business from their customer and deepen the relationship.

11WAN Ethernet

Tata Communications Ethernet Service Portfolio

The following slides are for reference and will not be reviewed during the presentation. If you have questions, we can address them during the presentation.

12WAN Ethernet

Global and National Dedicated Point to Point Ethernet

Transparent PipeRing based network protectionBandwidth:

Fast-E Interface: 2-100 Megs in 2 Meg incrementsGig-E Interface: 50 – 1,000 Megs in 50 Meg increments

SLA – PoP to PoPAvailability Outside India and to Tier 1 cities in India

Packet Delivery RatioGlobal service only

No MAC learning, no MAC limits

13WAN Ethernet

Global and National Priority Point to Point Ethernet

4 Classes of ServiceInterclass bursting within the CIR

Mesh protectionOn-Line ReportingBandwidth:

Fast-E Interface: 64, 128 and 512 kbps; 1 -100 Megs in 1 Meg incrementsGig-E Interface: 100 – 145 Megs in 5 Meg increments

SLA dependent on the CoSPoP to PoP

MAC address limits

14WAN Ethernet

Global and National Priority Point to Multipoint Ethernet

Hub and Spoke4 Classes of Service

Interclass bursting within the CIR

Mesh protectionOn-Line ReportingVLANs used for frame forwardingBandwidth:

Fast-E Interface: 64, 128 and 512 kbps; 1 -100 Megs in 1 Meg incrementsGig-E Interface: 100 – 145 Megs in 5 Meg increments

SLA dependent on the CoSPoP to PoP

MAC address limits

15WAN Ethernet

Global and National Dedicated Point to Multipoint Ethernet

Hub and spokeTransparent PipePurely private networkStandard SLA is customer premise to customer premiseFrames forwarded using MAC addresses

MAC learning

Bandwidth:Fast-E Interface: 2-100 Megs in 2 Meg incrementsGig-E Interface: 50 – 1,000 Megs in 50 Meg increments

Ring based network protectionMAC address limits

16WAN Ethernet

Global and National Dedicated Multipoint Ethernet

Any to AnyTransparent PipePurely private networkStandard SLA is customer premise to customer premiseFrames forwarded using MAC addresses

MAC learningBandwidth:

Fast-E Interface: 2-100 Megs in 2 Meg incrementsGig-E Interface: 50 – 1,000 Megs in 50 Meg increments

Ring based network protectionMAC address limits

17WAN Ethernet

Enterprise SLA Option

• A managed solution for Global Ethernet

• Extending the SLA to the customer premise anywhere in India or in the world

• Expanding the SLA: Service Uptime, Packet Delivery Ratio, latency and jitter

• In-Line Monitoring – measurements reflect customer’s actual experience

• Reporting upon request

©2008 Tata Communications, Ltd. All Rights Reserved

WAN Ethernet

Thank you