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Developing Ethernet Services Offerings with MEF Specifications

Dmitry Dergalov, Technical DirectorRAD Data Communications-Russia www.rad.ruTel/Fax +7 (495) 231-1239/1097

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MEF/Carrier Ethernet Scope

Business Services

Residential Transport

Metro, National, InternationalMetro, National, International

HD TV, TVoD, VoD, Content Providers

Host applications, Consolidated

Servers

Gaming, DR, ERP

Voice/VideoTelephony

Internet information & Software apps

Mobile Backhaul

UNI

UNI

UNI

E-LAN

UNI

UNIUNI

E-Tree

UNI

UNI

E-Line

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Carrier Ethernet provides consistent services delivered to users connected over the widest variety of access networks

Delivered Over Variety of Access Media

COAXDirect Fiber

WDM Fiber

DS3/E3

Bonded Copper

Bonded T1/E1

Carrier 2

TDM

Ethernet

Ethernet Ethernet

Ethernet

EthernetEthernet

Ethernet

Direct Fiber

SONET/ SDH

PON Fiber

EthernetEthernet

Ethernet

Ethernet over Fixed Wireless

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Global Interconnect – Major Impact in 2010

• Rapid growth of Carrier Ethernet exchanges

– 100’s service providers connecting

– Local, Region, Global Interconnections

• Industry building critical mass for Carrier Ethernet Global Interconnect

– New Ethernet Service providers joining Carrier Ethernet community

– International Carrier Ethernet network forming

UNI

End-User

UNI

End-User

Carrier Ethernet

Exchange

Carrier Ethernet Service Providers

Carrier Ethernet Service Providers

ENNI

Direct Connect

ENNI

ENNI

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MEF: Defining Body of Carrier Ethernet

• 174 Member Companies• 78 Service Providers• Global Representation

Standards Education Compliance

Program Focus 2010-2011:Global Interconnect

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Five Attributes of Carrier Ethernet

Services – must support Translation of MEF EVPL, E-Line,

E-LAN service types and profiles with multiple CoSQuality of Service – Service MonitoringMust support enforceable, measurable, end-to-end service (frame delay, delay variation, availability).

Reliability – Protection. Must provide protection: carrier class with geographical diversity

Service Management – Process IntegrationMust support normalized process human and system for process transactions

Scalability – Scalability. Must support and access millions of EVCs and worldwide locations with scalable processes

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Carrier Ethernet Terminology

• UNI (User-to-Network Interface)– Physical interface/demarcation between service provider and subscriber– Service start/end point

• Ethernet Virtual Connection (EVC)– An association of two or more UNIs

• Three types of EVC– Point-to-Point– Multipoint-to-Multipoint– Rooted Multipoint (Point-to-Multipoint)

• EVCs and ServicesIn a Carrier Ethernet network, data is transported across Point-to-Point, Point-to-Multipoint and Multipoint-to-Multipoint EVCs according to the attributes and definitions of the E-Line and E-LAN services

• NNI (Network-to-Network Interface)– Demarcation/peering point

• Between service providers (NNI)• Between service provider internal networks (I-NNI)

(For full presentation of Ethernet Services visit www.MetroEthernetForum.org/presentations)

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MEF has Standardized Ethernet Services

E-Line Service – used to create• Ethernet Private Lines (EPL)• Virtual Private Lines• Ethernet Internet Access

UNI

Multi-point to Multi-point EVC

Multi-point to Multi-point EVC

UNIUNI

UNIPoint-to-Point EVCPoint-to-Point EVC

UNI

E-LAN Service – used to create

• Multipoint L2 VPNs• Transparent LAN Service• Multicast networks

E-Tree Service – used to create

• Rooted multi-point L2 VPNs• Broadcast networks• Telemetry networks

Rooted Multipoint EVC

Rooted Multipoint EVC

UNI

UNI

UNI

Enterprise Clients

SoHo & Residential Triple-Play

Mobile Data/Video

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Carrier Ethernet Architecture(1)

OSS/BSS

App Layer

Eth Layer

Tran Layer

MEF

Enabled by Carrier Ethernet

Enables Carrier Ethernet

Services, ENNI, OAM, Services, ENNI, OAM, CoS, CertificationCoS, Certification

MEF implementation recommendations

key to Carrier Ethernet worldwide adoption

and the elements of Global Interconnect

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Ethernet Services Layer Terminology

Carrier Ethernet Architecture (2)

Service Provider 1

Carrier Ethernet Network

CECE

UNIUNI

Ethernet Services “Eth” Layer

Subscriber Site

ETHUNI-CETH

UNI-CETH

UNI-NETH

UNI-NETH

UNI-NETH

UNI-NETH

E-NNIETH

E-NNIETH

UNI-CETH

UNI-C

UNI: User Network Interface, UNI-C: UNI-customer side, UNI-N network sideNNI: Network to Network Interface, E-NNI: External NNI; I-NNI Internal NNI

CE: Customer Equipment

UNIUNI

CECE

I-NNII-NNI E-NNIE-NNI

Service Provider 2

I-NNII-NNI

ETHE-NNIETH

E-NNI

Subscriber Site

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Bandwidth Profiles & Traffic Management

Bandwidth Profiles per EVC (service) and per CoS– CIR (Committed Information Rate)

• CIR assured via Bandwidth Reservation and Traffic Engineering

– EIR (Excess Information Rate)

• EIR bandwidth is considered ‘excess’

• Traffic dropped at congestion points in the network

– CBS/EBS (Committed/Excess Burst Size)

• Higher burst size results in improved performance

EVC-1

CIR

EIREVC-2

CIR

EIR

EVC-3

CIR

EIR

UNIEVC 1EVC 1

CoS 6CoS 61Mbps CIR for VoIP

CoS 2CoS 26Mbps CIR for VPN data traffic

3Mbps for Internet AccessEVC 2EVC 2

10Mbps UNI

(port)

BWPs can divide bandwidth per EVC (service) over a single UNI

– Multiple services over same port (UNI)– CoS markings enable the network to

determine the network QoS to provide

CIR defines the assured bandwidth EIR CIR defines the assured bandwidth EIR improves the network’s Goodput improves the network’s Goodput

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• Current implementations – Limited in features,

proprietary and/or ad-hoc– Differing feature and

functionality transparency– Do not support MEF Carrier

Ethernet services– Require extensive discussions

between operators in order to verify each operator’s Carrier Ethernet product and operational capabilities

Operators need to interconnect their Carrier Ethernet Networks

Carrier Ethernet Interconnect Challenge

Operator A

Operator BUNI A1UNI A2

UNI A3

UNI B2

UNI B1 UNI B3

Operator C

UNI C3UNI C1

UNI C2Operator D

UNI D1

UNI D2UNI D3

Proprietary interconnect

Every Interconnect arrangement is uniqueEvery Interconnect arrangement is unique

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Standardizedinterconnect

UNI D3

UNI A1

UNI C3

UNI A2

UNI B2

UNI B3

UNI C1UNI D2

Towards Standardized Interconnections

Operator A Operator B

Operator C Operator D

Standardized Carrier Ethernet ENNI Interconnect (MEF 26)

• Enables operators to…– Streamline their interconnect

operations– Cost effectively scale up

deployment of Carrier Ethernet services

– Provide wider range of services to enterprise customers

– Reach new markets at lower cost

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Interconnects facilitate service delivery that span multiple operators networks

• Standard Carrier Ethernet service handoffs between operators simplifies provisioning and troubleshooting across multiple networks

• Reduces time to revenue by cutting lead time to deliver the service• Lowers cost to manage the service once its turned up

Carrier Ethernet Interconnect Brings Global Reach

ISPPOP

Internet Service Multiplexed

Ethernet UNI ENNIENNI

ENNIENNI

Carrier Ethernet Network B

Carrier Ethernet Network A

Carrier Ethernet Network C

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ENNI Baseline (MEF26)

Transit or Carrier Ethernet ExchangeModel

Simple 2-carrier Model

Service ProviderNetwork

Operator Network Subscriber

Sites

ENNIOVC_A OVC_B

UNI

UNI

UNI UNI

UNI

UNI

Transit Operator orCarrier Ethernet Exchange

Service Provider 1Network

Subscriber Sites

ENNIOVC_A

OVC_B

UNI

UNI

UNI UNI

UNI

UNI

ENNI

Service Provider 2 Network

Subscriber Sites

OVC_C

• External Network-to-Network Interface (ENNI) for service availability

– Simple 2-carrier and multi-carrier service models– Ethernet Virtual Connection (EVC) between UNIs

spread across multiple networks– Operator Virtual Connection (OVC) for each EVC

segment

• Key ENNI requirements– Services: p2p and mp EVC types, single and multiple

CoS per EVC– Encapsulation: Standard S-Tag frame format – Scalability: 1 and 10 Gbps PHYs– ENNI Protection: 2-link LAG, active/standby, LACP

Subscriber Sites

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Carrier Ethernet Exchange Model

• Implements MEF ENNI to enable Carrier Ethernet interconnection at strategic points

• Enables multiple virtual connections over a single physical connection

• Exchange presents an MEF ENNI interface to connected service providers and acts as an MEF Operator Virtual Connection (OVC)

• Simplifies and lowers implementation, costs and creates scalability up and down

• Enables much larger market for Ethernet Services

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ENNI

Carrier Ethernet Exchange Model• Eliminates NxN connections, while retaining service differentiation

Service Provider(Access)

Service Provider

UNI

End-User

Ethernet Virtual Connection (EVC)

Service Provider’s OVC*

Service Provider’s OVC*

ENNI

ENNI

UNI

End-User

UNI

End-User

UNI

End-User

UNI

End-User

UNI

End-User

Exchange OVC

Carrier

Ethernet

Exchange

Carrier

Ethernet

Exchange

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Carrier Ethernet Scope and ReachBringing vastly extended scalability for business and residential users

Wireless Backhaul

Voice Gateway

Voice/VideoTelephony

HD TVTVoD, VoD

Gaming, BusinessBackup, ERP

ResidentialTriple-Play

Broadbandmobile data/video

VideoSource

VideoSource

Small/Medium Business

Internet

FTTx and DSLAM , Cable Modem

E-Line andE-LAN service

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TDM Circuits(e.g. T1/E1 Lines)

Circuit Emulation Services over Carrier Ethernet

• Enables TDM Services to be transported across Carrier Ethernet network, re-creating the TDM circuit at the far end– Runs on a standard Ethernet Line Service (E-Line)

Carrier Ethernet NetworkTDM Circuits

(e.g. T1/E1 Lines)Circuit Emulated

TDM Traffic

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Carrier Ethernet Architecture for Cable OperatorsHeadend Hub

EQAM

CMTS

Optical Metro Ring Network

VideoServer

D2A

AdInsertion

E-LAN

E-LineBusiness Services over Fiber (GigE)

Voice gateway

Voice/VideoTelephony

Digital TV, VOD,

Interactive TV, Gaming

Managed BusinessApplications

InternetAccess

AnalogTV Feeds

A2D

HubUNIUNI

CECE

E-NNIE-NNI

Another MSO or carrierNetwork

EoDOCSIS(future)

EoT1/DS3

PON

Greenfield Residential & Business Services

EoSONET/SDH

CECEUNIUNI

WDM

UNIUNIHome RunFiber

EoCoaxEoHFC

SwitchedFiber

Business Park

Business Services

Node

E-LineE-LAN

CECE

UNIUNI

CECE

WirelessPlant

ExtensionLeasedT1/DS3

CECEUNIUNI

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Related MEF Services Specifications

Purpose Defines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)

MEF 6.1MEF 6.1

PurposeDefines the service attributes and parameters required to offer the services defined in MEF 6. Updated from Original MEF 10 in October 2006

Audience

Appropriate for equipment vendors, service providers, and business customers, since it provides the fundamentals required to build devices and services that deliver Carrier Ethernet. For Enterprise users it gives the background to Service Level Specifications for Carrier Ethernet Services being offered by their Service Providers and helps to plan Ethernet Services as part of their overall network.

Ethernet Services Attributes Phase 2 MEF 10.1MEF 10.1

Metro Ethernet Services Definitions Phase II

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Buyer Benefits

• Reduce operating costs – Through aggregation and inter-operability of multiple Carrier Ethernet services

over a single standards-based physical connection • Reduce capital costs

– Through use of logical connections instead of capital intensive physical assets (e.g. POPs, circuits, etc.)

• Increase footprint and reach larger and/or new markets– Geographic (e.g. emerging markets, regional markets)– Capacity (e.g. 1 GbE, 10 GbE) – Capability to address new market segments (e.g. residential, enterprise, etc.)

• Reduce time to market and improve financial benefits– Building a standardized ENNI is faster than building out proprietary

infrastructure– Quicker recognition of internal SP infrastructure projects’ financial

benefits• Increase business efficiencies

– Lower management costs through proven inter-operability processes (ordering, implementation, operations, billing)

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Seller Benefits

• Reduce operating costs – Spreading fixed operating costs over a large number of inter-operable, standards-

based virtual connections

• Reduce capital costs– Faster amortization of initial investment through larger number of virtual

connections

• Defend footprint– By providing efficient access to seller’s footprint under seller SP commercial terms

• Reduce time to market and improve financial benefits– More efficient sales distribution channel using ENNIs instead of multiple EPLs – Enables faster revenue recognition from retail customers

• Increase business efficiencies– Through standardized ENNI fulfillment and repair processes

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Summary

• Implementation of Carrier Ethernet Global Interconnects worldwide with continued acceleration in 2011 and beyond

• MEF Global Interconnect Program, consisting of MEF Specifications, Certification and Connect, provides a common and standard framework for the industry

• Collectively, Global Interconnect exists to enable standardized and streamlined delivery of MEF-certified Carrier Ethernet services to scale locally and globally:– For end users the worldwide connection is transparent and seamless.

– For service providers it unlocks new revenue opportunities: expanding the numbers of locations that can be reached economically

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MEF Global Interconnect Summary

• Totality of interconnected autonomous Carrier Ethernet networks worldwide

• Enabling– Standardized and streamlined delivery of MEF-

certified Carrier Ethernet services– End-to-end Class of Service, management and

protection

Standards Education Compliance

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Thank you!

Visit the following MEF Web sites for more details:

www.MetroEthernetForum.org and www.EthernetAcademy.net