Layer 2 Customer-controlled Global VPN Services

Tata Communications’ Layer 2 VPN service is delivered on our multipath, private MPLS network for exceptional security and redundancy. Your customized VPN solution delivers security, reliability, low costs, and end-to-end Quality of Service (QoS).

Our private MPLS network encompasses major business hubs across Asia, Europe, the Americas, and over 116 Indian cities.

Customized Customer Mapping

_ Layer 2 MPLS-VPN over secure private network _ Multiple CoS to provide differentiated QoS for voice, video and data applications_ Global reach to grow your business efficiencies_ Any Transport over MPLS (AToM) _ Ethernet _ Ethernet Relay Service (ERS): A VLAN-based service that can be used to create a hub-and-spoke architecture in Layer 2 using multiple CoS on each VLAN _ Ethernet Wire Service (EWS): A port-based service, best suited for single-CoS, high bandwidth, point-to-point requirements _ ATM _ AAL5 _ Cell Relay (AALO) _ FR, PPP and HDLC_ Legacy cost savings (L2 interfaces and encapsulation supported)_ VPN access options: Nx64kbps, E1, E3/DS3,STM-1, Fast Ethernet, and Gig Ethernet

_ PE-CE encapsulation options: _ Frame Relay, ATM, PPP, HDLC, and Ethernet_ Secure customer network without Tata Communications’ participation in customer routing_ Customized commercial terms and pricing_ Multiple jurisdiction contracting_ Guaranteed service with strong service level guarantees _ Centrally managed, proactive 24x7x365 networking monitoring by trained staff_ Monthly SLA reports

ENTERPRISENetwork

TataCommunications

PoP

TataCommunications

PoP

TataCommunications

PoP

TataCommunications

Global VPN

Carrier-class, legacy-free multipath private MPLS network

For more information on Layer 2, please visit:www.tatacommunications.com/contact

www.tatacommunications.com

Layer 2

© 2008 Tata Communications, Ltd. All Rights Reserved. 2P_TC_layer-2-global-vpn_ver1.0_feb-2008

MPLS MAP

AtlanticPacific

Pacific

Indian

Arctic Ocean

Ocean

Ocean

Ocean

Ocean

Arctic Ocean

Chukchi Sea

Beaufort Sea

Caribbean Sea

Hudson BayGulf of Alaska

Baffin Bay

Gulfof Mexico

Norwegian Sea

Greenland Sea

North Sea

Mediterranean Sea

BalticSea

Black Sea

AralSea

ArabianSea

Bay of Bengal South ChinaSea

Sea ofJapan

(East Sea)

EastChinaSea

YellowSea

Sea ofOkhotsk

Bering Sea

Tasman Sea

GreatAustralian

Bight

Barents Sea

Kara Sea

Leptev Sea

Russia

Finland

Austria

Italy

Spain

Sweden

Norway

Germany

France

Portugal

Hungary

Romania

Bulgaria

Turkey

Denmark

Poland

Belarus

UkraineCzech. Rep.

Slovakia

Greece

Netherlands

Belgium

Ireland

Lithuania

Latvia

Estonia

Lux.

CroatiaSlovenia

Switz.

Greenland

Iceland

United States

Canada

Mexico The Bahamas

Cuba

Panama

El Salvador

Guatemala

Belize

Honduras

Nicaragua

CostaRica

JamaicaHaiti

DominicanRepublic

Dominica

Antigua

Argentina

Bolivia

Colombia

Venezuela

Peru

Brazil

Suriname

Guyana

Chile

Ecuador

Paraguay

Uruguay

Kenya

Ethiopia

Eritrea

Sudan

Egypt

Niger

Mauritania

Mali

Nigeria

Somalia

Namibia

Libya

Chad

South Africa

Tanzania

Dem. Rep.Of Congo

Angola

Algeria

Madagascar

Mauritius

Mozambique

Botswana

Zambia

Gabon

Central AfricanRepublic

Tunisia

Malta

Morocco

Uganda

BeninGhana

Coted'Ivoire

Liberia

Sierra Leone

Guinea

Burkina FasoGambia

Cameroon

Sao Tome & Principe

Zimbabwe

Congo

Equatorial Guinea

WesternSahara

Djibouti

Senegal

Guinea Bissau

CapeVerde

Azores

Jordan

Azerbaijan

Kyrgyzstan

Tajikistan

Kuwait

Qatar

U. A. E.

Yemen

Syria

Iraq

Iran

Oman

SaudiArabia

Afghanistan

Pakistan

India

China

Kazakhstan

Turkmenistan

Uzbekistan

Burma

Thailand

Cambodia

Nepal

Vietnam

Sri Lanka

Laos

Bangladesh

Malaysia

Papua NewGuinea

Philippines

Indonesia

East Timor

Japan

Mongolia

South Korea

Australia

NewZealand

U. K.

NewCaledonia

Vanuatu

Guam

Palau

SolomanIslands

Fiji

Comoros

Kiribati

Micronesia

Kiribati

Guadeloupe

MartiniqueSt. Lucia

St. VincentGrenada

Trinidad and Tobago

SamoaIslands

Tonga

French Polynesia

© 2008 Tata Communications, Ltd. All Rights Reserved. The map is for illustration purposes only and is intended only to give a general description of Tata Communications’ facilities and installations.

Key Features

_ Multi-interface support_ Robust and secure infrastructure _ Converged, service-ready infrastructure_ Carrier-class, legacy-free MPLS network_ MPLS-TE (Traffic Engineering)_ Seamless global reach in 12 countries across four continents, including pan-India coverage _ Unified global MPLS core

_ Real-time monitoring and reporting_ Billing flexibility

Current WAN Challenges

_ Legacy cost structures_ Expensive WAN maintenance costs_ High downtime due to lack of protection options_ Drive to outsource WAN ownership