wan ethernet services

WANEthernet Services

SummaryDocument

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WAN Ethernet Services-Summary document

Table of Contents

2

3 Understanding fundamentals

6 Product nomenclature

7 Dedicated Ethernet

8 EoSecure

9 Priority Ethernet

10 Multipoint Ethernet

10 Option 1: Dedicated Multipoint Ethernet

11 Option 2: Virtual Private LAN (VPLS)

12 Global Priority Stretch Ethernet

13 10 Gig Ethernet

14 Low Latency Global Dedicated Ethernet

15 Low Latency Multipoint Ethernet

16 Enterprise SLA Option

17 FAQs

18 WAN Ethernet coverage

19 Reference material

3


Understanding Fundamentals

Defining the protection types: unprotected, deterministic, and mesh protection

Unprotected circuit– This means that data traveling from location A to location Z has only a single defined path and incase of a cable failure there is no second route for the data to reach its destination.

Deterministic protection– This means that there are two clearly defined paths or cable routes for the data to reach from location A to location Z. In case of a cable failure on one path the data gets rerouted and reaches the destination through the second defined path.

Mesh protection– This means that there are multiple routes available from location A to location Z and the data can travel on any of these routes to reach its destination. In case of a failure on one of the routes the data will be re-routed automatically to one of the other available routes.

Defining CIR

CIR is Committed Information Rate. This means that the customer gets the exact committed bandwidth on our network. For example, if the customer buys 10 Meg of bandwidth, we will reserve 10 Meg of bandwidth for the customer on our network.

4


Ethernet Service Types as Defined by the Metro Ethernet Forum (MEF)

E-Line- Any Ethernet service that is based on a point-to-point Ethernet Virtual Connection (EVC) is designated as an Ethernet Line (E-Line) Service type. An E-Line service type can be used to create a broad range of point-to-point services.

EPL- An Ethernet Private Line (EPL) service is specified using an E-Line service type. An EPL service uses a point-to-point EVC between two UNIs and provides a high degree of transparency for service frames between the UNIs it interconnects such that the service frame’s header and payload are identical at both the source and destination UNI when a service frame is delivered.

EVPL- An Ethernet Virtual Private Line (EVPL) is created using an E-Line service type. An EVPL can be used to create services similar to the Ethernet Private Line (EPL) with some notable exceptions. First, an EVPL allows for service multiplexing at the UNI. This capability allows more than one EVC to be supported at the UNI where the EPL does not allow this. Second, an EVPL need not provide as much transparency of service frames as with an EPL. Because service multiplexing is permitted, some service frames may be sent to one EVC while other service frames may be sent to other EVCs.

E-LAN- Any Ethernet Service that is based upon a multipoint-to-multipoint EVC is designated as an Ethernet LAN (E-LAN) service type.

EP-LAN- Subscribers with multiple sites often want to interconnect them at high speeds so all sites appear to be on the same Local Area Network (LAN) and have equivalent performance and access to resources such as servers and storage. Subscribers commonly desire a highly transparent service that connects multiple UNIs. To this end, the Ethernet Private LAN (EP-LAN) service is defined in this subsection, using the E-LAN service type.

EVP-LAN- Some subscribers commonly desire an E-LAN service type to connect their UNIs in a metro network, while at the same time accessing other services from one or more of those UNIs. An example of such a UNI is a subscriber site that wants to access a public or private IP service from a UNI that is also used for E-LAN service among the subscriber’s several metro locations. It is defined as the Ethernet Virtual Private LAN (EVP-LAN) service in this subsection to address this need.

E-Tree- Any Ethernet Service that is based on a rooted-multipoint-to-multipoint EVC is designated as an Ethernet Tree (E-LAN) service type.

EP-Tree- Subscribers with multiple sites may want to interconnect them to provide services other than those that resemble a LAN. These services may be distributed from a centralized site (or few such sites) where the distribution site is designated as a Root and all the remaining sites are designated as leaves.

EVP-Tree- Subscribers desire access to certain applications or content services from well-defined access points within their own (or an external) network. In this case it is necessary to interconnect the participating UNIs in a rooted-multipoint connection to the well-defined access (or root) point. One or more of the subscriber’s UNIs may also support other services, e.g., EVPL or EVP-LAN. For such cases, the EVP-Tree service is used.

5


What are MEF Certifications?

Metro Ethernet Forum (MEF) is a global industry alliance comprising more than 195 organizations including telecommunications service providers, cable MSOs, network equipment/software manufacturers, semiconductors vendors and testing organizations. The MEF develops Carrier Ethernet technical specifications and implementation agreements to promote interoperability and deployment of Carrier Ethernet worldwide.

MEF certifications are verified through independent testing and assure customers that our global Ethernet services meet rigorous international standards.

MEF 14 ensures that the latency, jitter and packet delivery performance of the services conforms to the rigorous MEF standards.

MEF 9 ensures the conditions required for delivery of services have specific Ethernet User Network Interface (UNI) and Ethernet Virtual Connection (EVC) service attributes, with corresponding parameter values.

MEF 14 and 9 certifications apply to our Global Dedicated Ethernet Service, National Dedicated Ethernet Services, EoSecure, Priority Ethernet Service, Multipoint Ethernet Service, Low Latency Global Dedicated Ethernet and Low Latency Multipoint Ethernet.

Visit www.metroethernetforum.org to learn more about MEF.

What is a MEF Carrier Ethernet Certified Professional (MEF-CECP)?

The MEF-CECP, is the MEF professional certification program designed for telecommunications professionals seeking to validate their expertise, skills and knowledge of Carrier Ethernet technologies, standards, services and applications.

Certification is awarded to individuals who successfully pass MEF administered tests developed by distinguished leaders and experts in the Carrier Ethernet industry. MEF authorized training partners, global leaders in telecommunication classroom based training, education and consulting, offer Carrier Ethernet training courses to prepare individuals for exams.

The MEF certification is a globally recognized and trusted reference for Carrier Ethernet professionals employed with global service providers, equipment vendors, enterprises and governments. It ensures that Carrier Ethernet professionals acquire key competency and skills to design, manage or implement Carrier Ethernet networks, services and applications.

Tata Communications has CECP certified professionals on their Product Management teams, Sales Engineering teams and Operations teams. Tata has an active program to provide top performers CECP training.

6


Product Nomenclature

ServicesMEF Defined

ServiceProtection type

JumboFrames

MEFCertified

Global Dedicated Ethernet

EPLDeterministic, ring or

unprotectedYes Yes

National Dedicated Ethernet

EPL Deterministic, ring Yes Yes

EoSecure EPLDeterministic, ring or

unprotectedYes Yes

Priority Ethernet(point to point)

EVPL Mesh Yes Yes

Priority Ethernet(point to multipoint)

EVPL Mesh Yes Yes

10 Gig Ethernet EPLDeterministic, ring or

unprotectedYes No

Global Priority Stretch Ethernet

EPL Mesh No No

Multipoint EthernetEP-LAN & EP-

TreeDeterministic, ring or

unprotectedYes Yes

Virtual Private LAN Service

EP-LAN & EVP-LAN

Mesh Yes Yes

Low Latency Global Dedicated Ethernet

EPL Unprotected Yes Yes

Low Latency Multipoint Ethernet

EP-LAN & EP-Tree

Unprotected Yes Yes

7


Dedicated Ethernet

Feature Details

Choice of bandwidth2-100 Mb in 2 Mb increments50 – 1,000 Meg in 50 Meg increments1,000—10,000 Meg in 500 Meg increments

Choice of interfacehandoffs

Fast-E interfaces:10BaseTx (copper, RJ45, full duplex)100BaseTx (copper, RJ45, full duplex)Gig-E interface:1000BaseLX (fiber, SM, 1310nm, full duplex)1000BaseSX (fiber, MM, 850nm, full duplex)1000BaseTx (copper, RJ45, full duplex)10 Gig interface:10GE LAN PHY:10Gbase SR: 850nm, multimode, 26-300m10Gbase LR: 1310nm, single mode, 2m-10km10Gbase ER: 1550nm, single mode, 30-40km

Transparent pipesNo deep packet inspection, no MAC learning and no VLAN forwarding required

Choice of frame sizesStandard frame sizes (64-1522 bytes) and jumbo frame sizes (9000 bytes) on request

Committed bandwidth

Committed Information Rate (CIR)

Non service-affectingupgrades

Bandwidth can be upgraded without service interruption and without changing ports

Service levelagreements (SLAs)

GDE: Availability, Latency, Packet Delivery Ratio, MTTRNDE: Availability, MTTR*Contact your sales representative for the latest information on the SLAs

MEF certifications MEF 9 and 14 certified

Service details

• Dedicated, high performance Ethernet to locations spanning the globe

• Flexible bandwidth options, customized for the way you do business

• Bandwidth upgrades with no downtime or contract renewals• Aggressive service level guarantees• MEF 9 & 14 certified• A reliable and resilient network for your 24X7 operations

8


EoSecureService details

• Ethernet over SONET/SDH technology• Robust and reliable network

• Sub-50 ms switching over protected links• Ring protection - diverse cables to all on-net locations

• The Ethernet network is a series of connected Layer 2 switches • Guaranteed uncontended bandwidth• Secure links

• Customer traffic is segregated from ingress through egress• No Layer 2 bridging on port cards• Every physical service port is dedicated to one customer

• Link Loss Forwarding• Available On-Net upon Request

Feature Details

Choice of bandwidth 48-1000 Mb in 48 Mb increment


Fast-E interfaces:100BaseTXGig-E interface:1000BaseT1000BaseSX1000BaseLX1000BaseZX

Transparent pipesNo deep packet inspection, no MAC learning and no VLANforwarding required

Choice of frame sizesStandard frame sizes (64-1518 bytes)Jumbo frame sizes (64-9000 bytes) on request

Committed bandwidth

Committed Information Rate (CIR)


Availability, Latency, Packet Delivery Ratio, MTTR*Contact your sales representative for the latest information on the SLAs


9


Priority Ethernet

Service details

• Multiple classes of service• Flexible bandwidth options• Mesh-protection for a very high network reliability• Bandwidth upgrades or adding/removing sites with no downtime or contract

renewal• Centralized processing for multiple locations with the hub and spoke

configuration• Automatic bursting into higher classes of service to utilize unused bandwidth

Feature Details

Choice of bandwidth1-100 Meg in 1 Meg increments105-145 Meg in 5 Meg increments150 – 300 Meg in 10 Meg increments


Fast-E interface:100BaseTx (copper RJ45)100BaseFx (fiber, SM/MM 1310nm)Gig-E interface:1000BaseLX (fiber, SM, 1310nm)1000BaseSX (fiber, MM, 850nm)1000BaseTx (copper RJ45) (case-by-case)

Choice of frame sizesStandard frame sizes (64-1522 bytes) and Jumbo frame size (up to 9000 bytes) on request

Mesh protectionNetwork protection designed with multiple pathways intoTata Communications PoPs

Interclass burstingAllows for bursting from a lower CoS into unused higher CoS bandwidth


Bandwidth can be upgraded without service interruption, without changing ports

Classes of service Choice of six CoS to prioritize frames and regulate network traffic


CoS 1: Service availability, Packet delivery ratio, Latency, JitterCoS 2: Service availability, Packet delivery ratio, Latency, JitterCoS 3: Service availability, Packet delivery ratio, LatencyCoS 4: Service availability, Packet delivery ratio, LatencyCoS 5: Service availability, Packet delivery ratio, LatencyCoS 6: Service availability, Latency


10


Multipoint Ethernet

Service details

• Dedicated Multipoint Ethernet• Hub & spoke and any to any network service• Managed and unmanaged service options• Bandwidth upgrades with no service interruption or contract

renewals• On-line web portal with near real time reporting for managed option

Feature Details

Choice of bandwidth2-100 Meg in 2 Meg increments50-1,000 in 50 Meg increments1,000-10,000 in 500 Meg increments


Fast-E interfaces:10BaseTx (copper, RJ45, full duplex)100BaseTx (copper, RJ45, full duplex)Gig-E interface:1000BaseLX (fiber, SM, 1310nm, full duplex)1000BaseSX (fiber, MM, 850nm, full duplex)1000BaseTx (copper, RJ45, full duplex)10 Gig interface:10GE LAN PHY:10Gbase SR: 850nm, multimode, 26-300m10Gbase LR: 1310nm, single mode, 2m-10km10Gbase ER: 1550nm, single mode, 30-40km

Choice of frame sizesStandard frame sizes (64-1522 bytes)Jumbo frames (up to 9000 bytes) on request

Protected andunprotected circuits

Deterministic pathCircuits are ring protectedOffer unprotected multipoint plus protected multipoint networks



Transparent pipes No deep packet inspection and no VLAN forwarding required


Managed option: Service uptime, Packet delivery ratio, Latency, JitterUnmanaged option: Service availability, Packet delivery ratio, Latency


Multipoint Ethernet is available in two options with Tata Communications as follows

Option 1: Dedicated Multipoint Ethernet

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Multipoint Ethernet

Service details

• Any to any network service• Multiple classes of service (CoS)• Managed and unmanaged service options• Bandwidth upgrades with no service interruption or contact

renewals• Real time reporting

Feature Details

Choice of bandwidth1-100 Meg in 1 Meg increments105-145 Meg in 5 Meg increments150 – 300 Meg in 10 Meg increments


Fast-E interface:100BaseTx (copper RJ45)100BaseFx (fiber, SM/MM 1310nm)Gig-E interface:1000BaseLX (fiber, SM, 1310nm)1000BaseSX (fiber, MM, 850nm)1000BaseTx (copper RJ45) (case-by-case)

Choice of frame sizesStandard frame sizes (64-1518 bytes) and Jumbo frame size (up to 9000 bytes) on request

Mesh protectionNetwork protection designed with multiple pathways into Tata Communications PoPs

Interclass burstingAllows for bursting from a lower CoS into unused higher CoS bandwidth



Classes of service Choice of six CoS to prioritize frames and regulate network traffic


CoS 1: Service availability, Packet delivery ratio, Latency, JitterCoS 2: Service availability, Packet delivery ratio, Latency, JitterCoS 3: Service availability, Packet delivery ratio, LatencyCoS 4: Service availability, Packet delivery ratio, LatencyCoS 5: Service availability, Packet delivery ratio, LatencyCoS 6: Service availability, Latency


Option 2: Virtual Private LAN (VPLS)

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Global Priority Stretch Ethernet

Service details

• Billed only for bandwidth used• A best-effort service with no minimum or maximum commitments

of bandwidth• Bandwidth as used limited to 100 Meg on Fast-E and 1000 Meg on

Gig-E port• Web portal to check circuit utilization

Feature Details


Fast-E interface:100BaseTx (copper RJ45)Gig-E interface:1000BaseLX (fiber, SM, 1310nm)1000BaseSX (fiber, MM, 850nm)1000BaseTx (copper RJ45) (case-by-case)

Choice of frame sizes Standard frame sizes (64-1518 bytes)

Mesh protectionNetwork protection designed with multiple pathways into Tata Communications PoPs

Classes of service Best - effort CoS

Web portal

Check network utilization daily, weekly, and monthly with the help of a web-based portal.View and report trouble ticketsMonitor circuit performanceFacilitates timely bandwidth management based on actual utilization

13


10 Gig Ethernet

Feature Details

Bandwidth LAN Phy: maximum of 10 G effective throughput bandwidth

Type of bandwidthprofile

One bandwidth profile per UNI/EVC; Only one EVC per UNI

Classes of service Port-based, single high-priority class-of-service, full preservation

Choice of frame sizes(MTU)

Standard frame sizes (64-1518 bytes) and jumbo frame sizes (up to 9000 bytes) on request


10GE LAN PHY:10Gbase SR: 850nm, multimode, 26-300m10Gbase LR: 1310nm, single mode, 2m-10km10Gbase ER: 1550nm, single mode, 30-40km

ConfigurationPoint-to-point EVC service with only two UNIs (MEF 6.1 defined EPL)

VLAN and QoStransparent Pipe

802.1q VLAN transparent; Layer 2 and layer 3 QoS transparent (i.e. CoS, DSCP, PHB, etc)

Service level agreement

Service availability

Service details

• Maximum, future-proof bandwidth at a competitive price• Secure, private network with transparent service to more locations• Guaranteed delivery, quality of service, and SLA options• Global connections to 25 cities in 11 countries• Choice of protected or unprotected circuits

14


Low Latency Global Dedicated Ethernet

Feature Details

Low Latency Ethernet connecting sites

London, Singapore, Tokyo, New York, Chicago and Hong Kong

Choice of bandwidthGig-E interfaces: 2-100 Megs in 2 Meg increments10Gig-E interfaces: 50-500 Megs in 50 Meg increments

Choice of interface handoffs

Gig-E Interface:1000BaseLX (fiber, SM, 1310nm)1000BaseSX (fiber, MM, 850nm)1000BaseTx (copper Rj45)10GE LAN PHY:10GBaseSR :850nm, MM*,26-200m10GBaseLR :1310nm, SM*, 2m-10km10GBaseER :1550nm, SM*, 30-40km*Please refer to the SLA schedule for the most current SLA parameters


Configuration Point-to-point

ResiliencyLondon – Hong Kong route is protected (by default)All other route are unprotected

Committed bandwidth Committed Information Rate (CIR)

Non service-affectingUpgrades



Enterprise SLA option (Customer Premise to Customer Premise) : Availability, Packet delivery ratio, Latency, JitterStandard SLA (PoP to PoP): Service uptime, Packet delivery ratio, Latency


Service details

• Low latency solution connecting six major economic centres• Unprotected network except London to Hong Kong• Standard guaranteed “latency” SLA with continuous latency monitoring, PoP to PoP• Enterprise SLA option - extending the SLA guarantees from your actual site to site and

web portal access• Bandwidth options - pay for the exact bandwidth your business needs today• Scalability with Next Generation Ethernet Network• Added security – Provider Backbone Bridging (PBB) isolates customers and prevents

denial of service attacks on one customer from impacting other customers

15


Low Latency Multipoint Ethernet

Service details

• Low latency solution connecting six major economic centres.• Private multipoint network where your sites can share your bandwidth as high usage

requirements “follow the sun”, saving you up to 50%* per month• Single SLA covering key parameters with choice of Managed option, monitoring your

circuit end to end• Widest range of options to choose the best fit network for your business – hub & spoke

and any to any topology• Flexibility to upgrade, downgrade bandwidth and add sites without service interruptions

and additional CAPEX• One provider offering consolidated billing and single point of troubleshooting, which

means reduced operational IT management

Feature Details

Low Latency Ethernet connecting sites

London, Singapore, Tokyo, New York, Chicago and Hong Kong

Choice of bandwidthGig-E interfaces: 2-100 Megs in 2 Meg increments10Gig-E interfaces: 50-500 Megs in 50 Meg increments

Choice of interface handoffs

Gig-E Interface:1000BaseLX (fiber, SM, 1310nm) 1000BaseSX (fiber, MM, 850nm)1000BaseTx (copper Rj45)10GE LAN PHY:10Gbase SR: 850nm, multimode, 26-300m10Gbase LR: 1310nm, single mode, 2m-10km10Gbase ER: 1550nm, single mode, 30-40km


ConfigurationHub & SpokeAny to Any

ResiliencyLondon – Hong Kong route is protected (by default)All other route are unprotected

Committed bandwidth Committed Information Rate (CIR)

Non service-affectingUpgrades



Managed option (Customer Premise to Customer Premise) : Service uptime, Packet Delivery Ratio, Latency, JitterUnmanaged option (PoP to PoP): Availability, Packet Delivery Ratio, Latency


*based on Tata Communications’ customer implementations

16


Enterprise SLA Option

ESO Service Level Agreements

Details

Service uptimeProtected circuits – 99.9%Unprotected circuits – 99.5%

Packet delivery ratio 99.97% of frames will pass through the network

Latency (round-trip delay)Measurement of the actual circuit pathLatency target is calculated based on the actual path

Jitter (one-way delay variation) Not to exceed 5 ms.

Web portal

• Check network utilization daily, weekly, and monthly with the help of a web-based portal

• View and report trouble tickets• Monitor circuit performance• Facilitates timely bandwidth

managementbased on actual utilization

Service details

• SLAs that extend from customer premise to customer premise• SLA includes service up time, packet delivery ratio, latency, and jitter• Web-based customer portal for SLA monitoring in near real time• End-to-end Monitoring

Tata Communications installs network interface devices (NIDs) at the customer premise. Data is collected from the NIDs every five minutes, allowing Tata Communications to deliver constant, end-to-end monitoring of the circuit. In addition to monitoring, this configuration also facilitates rapid diagnosis if network issues occur. This end-to-end capability delivers highly accurate service measurements in line with customer traffic for performance statistics that accurately reflect the customer’s traffic flow and experience.

A Service Provider version of this option is available.

17

FAQs1. Which Ethernet service provides a point to point, dedicated connectivity globally?

- Global Dedicated Ethernet Service (GDE)

2. What is the name of the service that offers point to point, dedicated connectivity within India?

- National Dedicated Ethernet Service (NDE)

3. What is the difference between GDE and NDE?

- GDE is the name given to the point to point, dedicated Ethernet service that extends to any location outside India (either one point touching a location in India and the other outside India or both end locations are outside India).

- NDE is the name given to Ethernet service that provides point to point, dedicated connectivity within India only.

4. Which point to point service provides multiple classes of service for traffic prioritization?

- Priority Ethernet Service.

5. Does Tata Communications have an any-to-any service that provides the multiple classes of service option as well?

- Yes. Our Multipoint Ethernet Service offers the customer the choice of classes of service.

6. Does Tata Communications offer usage based billing?

- Yes. Tata Communications Priority Stretch Ethernet service is a best effort service that offers usage based billing.

7. Does Tata Communications offer SLAs from customer premise to customer premise as a standard?

- No. As a standard, we offer SLAs from Tata Communications Point of Presence (POP) to Tata Communications POP.

8. What if a customer wants SLAs to be extended from customer premise to customer premise?

- Tata Communications offers an “Enterprise SLA option” that enables end to end monitoring of the network.

9. Does Tata Communications provide Low Latency Service?

- Yes, Tata Communications Ethernet Service do offer Low Latency Service. The product names are Low Latency Global Dedicated Ethernet (LL GDE) and Low Latency Multipoint Ethernet (LL Multipoint Ethernet).


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WAN Ethernet Coverage


APAC: Australia - Melbourne, Sydney; Bangladesh - Dhaka; China - Hong Kong; Guam – Piti; Indonesia - Jakarta; Japan – Tokyo; South Korea – Seoul; Malaysia - Kuala Lumpur; Mauritius – Port Louis; New Zealand – Auckland; Pakistan – Karachi; Philippines - Manila; Singapore; Sri Lanka - Colombo; Taiwan - Taipei; Thailand - Bangkok; Vietnam – Ho Chi Minh

India: PoPs in over 120 cities throughout India; Metro Ethernet in 31 cities in India

Europe: Austria - Vienna; Belgium - Brussels; Denmark – Blaavand, Hersted-Vester; France – Marseille, Paris; Germany - Frankfurt; Hungary - Budapest; Ireland - Dublin; Italy - Milan; Netherlands - Amsterdam; Norway - Oslo; Poland - Warsaw; Portugal - Lisbon; Russia - Moscow; Spain – Madrid, Barcelona; Sweden - Stockholm; Switzerland - Zurich, Geneva; Turkey - Istanbul; United Kingdom – London, Cressex, Somerset

Middle East and Africa:

Angola – Luanda; Bahrain – Manama; Ghana – Accra; Kenya - Nairobi; Morocco - Casablanca; Nigeria - Lagos; Qatar – Doha; Saudi Arabia – Riyadh; South Africa - Cape Town, Johannesburg; UAE – Fujairah, Dubai; Tanzania – Dar-es-Salaam; Uganda – Kampala; Zambia – Lusaka; Zimbabwe – Harare

North America:

California - Los Angeles, Palo Alto, Santa Clara, San Jose; Illinois - Chicago; Florida - Miami; Georgia- Atlanta; New York - New York City; New Jersey – Newark, Wall; Texas – Dallas, Houston; Virginia - Ashburn; Washington - Seattle; Massachusetts - Boston; Canada - Montreal, Toronto, Vancouver, Lake Cowichan, Nova Scotia, Weir

Latin America:

Argentina - Buenos Aires; Brazil - Sao Paulo; Chile - Santiago; Columbia - Bogota; Ecuador - Quito; Guatemala – Guatemala City; Mexico - Mexico City;Panama - Panama City; Peru - Lima; Uruguay - Montevideo; Caracas - Venezuela

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Reference Material


• VideoonTataCommunicationsWANEthernetportfolio

• WANEthernetmicrosite

• ProviderBackboneBridging(PBB)KnowledgeCenter

http://www.tatacommunications.com/vpn/PBBknowledgeCentre.asp

• NGEtechnicaltutorial

• LowLatencyEthernetmicrosite

http://www.tatacommunications.com/vpn/low-latency-ethernet.asp

• HaveaqueryrelatedtoPBB?

Email Tata Communications Ethernet experts at [email protected]

For more information about Tata Communications WAN Ethernet Services,visit www.tatacommunications.com/vpn/ethernet.asp

About Tata Communications Tata Communications is a leading global provider of a new world of communications. With a leadership position in emerging markets, Tata Communications leverages its advanced solutions capabilities and domain expertise across its global and pan-India network to deliver managed solutions to multi-national enterprises, service providers and Indian consumers.

The Tata Global Network includes one of the most advanced and largest submarine cable networks, a Tier-1 IP network, with connectivity to more than 200 countries across 400 PoPs, and nearly 1 million square feet of data center and colocation space worldwide.

Tata Communications’ depth and breadth of reach in emerging markets includes leadership in Indian enterprise data services, leadership in global international voice, and strategic investments in operators in South Africa (Neotel), Sri Lanka (Tata Communications Lanka Limited) and Nepal (United Telecom Limited).

Tata Communications Limited is listed on the Bombay Stock Exchange and the National Stock Exchange of India and its ADRs are listed on the New York Stock Exchange. (NYSE: TCL)

WANEthernet Services

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IndiaTata CommunicationsPlot No C 21 & 36,‘G’ Block, Bandra Kurla ComplexBandra (E), Mumbai 400 098Tel +91 22 6657 8765Fax +91 22 6691 0000

AsiaTata CommunicationsInternational Pte LtdTata Communications Exchange35 Tai Seng Street #06-01Singapore 534103Tel +65 6632 6700Fax +65 6634 8570

Tata Communications2402 Bank of America Tower12 Harcourt RoadCentral, Hong KongTel +852 3693 8888Fax +852 3690 202

AustraliaTata CommunicationsKing Street WharfSuite 503, 35 Lime StreetSydney NSW 2000 AustraliaTel +61 2 9299 2014Fax +61 2 9299 2019

North AmericaTata Communications2355 Dulles Corner Blvd 7th floorHerndon, VA 20171, USATel +1 877 255 8282Fax +1 703 547 6555

Tata Communications90 Matawan Rd – 3rd FloorMatawan, NJ 07747, USATel +1 732 888 6700Fax +1 732 888 6809145

Tata Communications1555 Rue Carrie-DerickMontréal, QuébecCanada, H3C 6W2Tel +1 514 868 7272Fax +1 514 868 7234

Middle East & North AfricaTata CommunicationsHamdan Street, City Center Building, Block – A, 2nd Floor, Office # 204P.O. Box 41660 Abu Dhabi, United Arab EmiratesTel +971 2 626 6223Fax +971 2 627 2624

EuropeTata Communications1st Floor, 20 Old BaileyLondon EC4M 7ANUnited KingdomTel +44 20 7029 9500Fax +44 20 7029 9640

Tata Communications131 Avenue Charles de Gaulle92200 Neuilly sur SeineFranceTel +33 1 41 43 4200Fax +33 1 41 43 4209

Tata CommunicationsAvenida de Europa 4, Bajo AParque Empresarial “La Moraleja”28108 AlcobendasMadrid, SpainTel +34 916 57 48 90Fax +34 916 62 06 79

Tata CommunicationsBettinastrasse 30D-60325 Frankfurt am MainGermanyTel +49 69 97461 123Fax +49 69 97461 149

© 2012 Tata Communications Ltd. All Rights Reserved. Tata Communications and the Tata logoare trademarks or registered trademarks of Tata Sons, Ltd. in the United States and certain othercountries. All other trademarks mentioned in this document are the property of their respective owners.

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