3 Delivered Over Variety of Access Media Carrier Ethernet provides consistent services delivered to users connected over the widest variety of access networksEthernetEthernetDirect FiberEthernet over Fixed WirelessCOAXDirect FiberBonded CopperEthernetEthernetSONET/ SDHTDMWDM FiberPON FiberEthernetCarrier 2DS3/E3Bonded T1/E1EthernetEthernetEthernetEthernetEthernet
4 Global Interconnect – Major Impact in 2010 Rapid growth of Carrier Ethernet exchanges100’s service providers connectingLocal, Region, Global InterconnectionsIndustry building critical mass for Carrier Ethernet Global InterconnectNew Ethernet Service providers joining Carrier Ethernet communityInternational Carrier Ethernet network formingUNIEnd-UserCarrier Ethernet ExchangeCarrier Ethernet Service ProvidersENNIDirect ConnectWhat is Global Interconnect?it is interconnected, autonomous, Carrier Ethernet networks, worldwideEnabling…- Standardized, streamlined delivery of MEF-certified Carrier Ethernet services over multiple, connected, Carrier Ethernet networks.- End-to-end Class of Service, Management and Protection- Ubiquitous service delivery
5 MEF: Defining Body of Carrier Ethernet 174 Member Companies78 Service ProvidersGlobal RepresentationStandardsEducationComplianceMEF Membership grew to 174 members, including 78 service providers and our first representatives from South America, the Caribbean and Africa – areas of “Market Development” focus for MEF;MEF specifications are being adopted globally and the work of the TC is the envy of the telecommunications industry.Global Interconnect moved to the forefront, with the launch of MEF 26 (ENNI), the emergence of Carrier Ethernet Exchanges and MEF’s Global Interconnect ProgramProgram Focus :Global Interconnect
6 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).Service Management – Process Integration Must support normalized process human and system for process transactionsReliability – Protection. Must provide protection: carrier class with geographical diversityA true Carrier Ethernet exchange must facilitate each of the 5 attributes of Carrier EthernetTherefore, Carrier Ethernet Exchange, must interconnect Carrier Ethernet services with these five attributesCarrier Ethernet is defined by MEF as Ethernet plus five carrier-class attributes:Reliability; Standardized Services, Quality of Service, Service Management, ScalabilityDeliver on-net experience off-netDeliver scalable Carrier Ethernet interconnect worldwide for any Carrier Ethernet service location connecting to any other seamlessly, much like telephony services by today PSTN networks, but inclusive of data, voice and video, and operational in days not monthsScalability – Scalability. Must support and access millions of EVCs and worldwide locations with scalable processes
7 Carrier Ethernet Terminology UNI (User-to-Network Interface)Physical interface/demarcation between service provider and subscriberService start/end pointEthernet Virtual Connection (EVC)An association of two or more UNIsThree types of EVCPoint-to-PointMultipoint-to-MultipointRooted 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 servicesNNI (Network-to-Network Interface)Demarcation/peering pointBetween service providers (NNI)Between service provider internal networks (I-NNI)(For full presentation of Ethernet Services visit
8 MEF has Standardized Ethernet Services E-Line Service – used to createEthernet Private Lines (EPL)Virtual Private LinesEthernet Internet AccessPoint-to-Point EVCUNIUNIEnterprise ClientsE-LAN Service – used to createMultipoint L2 VPNsTransparent LAN ServiceMulticast networksMulti-point toMulti-point EVCUNIUNIUNISoHo & Residential Triple-PlayE-Tree Service – used to createRooted multi-point L2 VPNsBroadcast networksTelemetry networksUNIRooted Multipoint EVCUNIUNIMobile Data/Video8
9 Carrier Ethernet Architecture(1) and the elements of Global InterconnectMEFEnabled by Carrier EthernetEnables Carrier EthernetServices, ENNI, OAM, CoS, CertificationMEF implementation recommendationskey to Carrier Ethernet worldwide adoptionOSS/BSSApp LayerEth LayerTran Layer
11 Bandwidth Profiles & Traffic Management Bandwidth Profiles per EVC (service) and per CoSCIR (Committed Information Rate)CIR assured via Bandwidth Reservation and Traffic EngineeringEIR (Excess Information Rate)EIR bandwidth is considered ‘excess’Traffic dropped at congestion points in the networkCBS/EBS (Committed/Excess Burst Size)Higher burst size results in improved performanceEVC-1CIREIREVC-2EVC-3UNIEVC1CoS 61Mbps CIR for VoIPCoS 26Mbps CIR for VPN data traffic3Mbps for Internet AccessEVC210Mbps UNI(port)BWPs can divide bandwidth per EVC (service) over a single UNIMultiple services over same port (UNI)CoS markings enable the network to determine the network QoS to provideCIR defines the assured bandwidth EIR improves the network’s Goodput
12 Carrier Ethernet Interconnect Challenge Operators need to interconnect their Carrier Ethernet NetworksUNI B2Current implementationsLimited in features, proprietary and/or ad-hocDiffering feature and functionality transparencyDo not support MEF Carrier Ethernet servicesRequire extensive discussions between operators in order to verify each operator’s Carrier Ethernet product and operational capabilitiesUNI A1Operator BUNI A2UNI B1Operator AUNI B3UNI A3UNI D1UNI C2Operator DOperator CUNI D3UNI D2At Global Crossing we understand the challenges inherent in developing interconnects… because each arrangement has been unique… today, we…- Submit and evaluate detailed assessments and RFIs to match SP’s carrier Ethernet products and capabilities to GC’s requirements- We participate in detailed discussions with partners, in areas such as Class of Service mapping…But we closely monitor MEF progress towards standards, recognizing the potential for process improvementOnce a GI standard is finalized GC can move forward with new processes and may retrofit if appropriate to accommodate best of breed…UNI C1UNI C3Proprietary interconnectEvery Interconnect arrangement is unique
13 Towards Standardized Interconnections Standardized Carrier Ethernet ENNI Interconnect (MEF 26)Enables operators to…Streamline their interconnect operationsCost effectively scale up deployment of Carrier Ethernet servicesProvide wider range of services to enterprise customersReach new markets at lower costUNI B2UNI A1UNI A2UNI B3Operator AOperator BOperator COperator DUNI C1UNI D3UNI C3UNI D2The goal is to ensure standardization at all points of the interconnect…Issues arise in the process – which are discussed later on, but which can be mitigated through standardization.Standardizedinterconnect
14 Carrier Ethernet Interconnect Brings Global Reach Interconnects facilitate service delivery that span multiple operators networksStandard Carrier Ethernet service handoffs between operators simplifies provisioning and troubleshooting across multiple networksReduces time to revenue by cutting lead time to deliver the serviceLowers cost to manage the service once its turned upISPPOPInternetService Multiplexed Ethernet UNICarrier Ethernet Network BENNICEWithout standardization, the providers have no common definition of how to interconnect, and lack a common language which often costs time and increases complexityStandardization enables Operator to Operator simplification where those involved are talking the same language – which saves time, optimizes efforts and gets all to market faster…Carrier Ethernet Network ACECarrier Ethernet Network CENNI
15 ENNI Baseline (MEF26) Simple 2-carrier Model Service ProviderNetworkOperator NetworkSubscriber SitesENNIOVC_AOVC_BUNISimple 2-carrier ModelSubscriber SitesTransit or Carrier Ethernet ExchangeModelService Provider 1 NetworkTransit Operator orCarrier Ethernet ExchangeService Provider 2 NetworkUNIOVC_CUNIOVC_AENNIOVC_BENNIUNIUNIUNISubscriber SitesUNISubscriber SitesExternal Network-to-Network Interface (ENNI) for service availabilitySimple 2-carrier and multi-carrier service modelsEthernet Virtual Connection (EVC) between UNIs spread across multiple networksOperator Virtual Connection (OVC) for each EVC segmentKey ENNI requirementsServices: p2p and mp EVC types, single and multiple CoS per EVCEncapsulation: Standard S-Tag frame formatScalability: 1 and 10 Gbps PHYsENNI Protection: 2-link LAG, active/standby, LACP
16 Carrier Ethernet Exchange Model Implements MEF ENNI to enable Carrier Ethernet interconnection at strategic pointsEnables multiple virtual connections over a single physical connectionExchange 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 downEnables much larger market for Ethernet Services
17 Carrier Ethernet Exchange Model Eliminates NxN connections, while retaining service differentiationEthernet Virtual Connection (EVC)Service Provider’s OVC*UNIEnd-UserUNIEnd-UserENNIENNIExchange OVCCarrier Ethernet ExchangeUNIEnd-UserUNIEnd-UserUNIEnd-UserUNIEnd-UserContains AnimationService Provider (Access)Service Provider
18 Carrier Ethernet Scope and Reach Bringing vastly extended scalability for business and residential usersHD TVTVoD, VoDGaming, BusinessBackup, ERPVoice/VideoTelephonyVoice GatewayWireless BackhaulInternetVideoSourceVideoSourceCOPPER, FIBER, COAX and WIRELESSE-Line andE-LAN serviceBroadbandmobile data/videoCOPPER, FIBER, EPON, WIRELESS, COAX CABLESmall/Medium BusinessResidentialTriple-PlayFTTx and DSLAM , Cable Modem
19 Circuit Emulation Services over Carrier Ethernet Enables TDM Services to be transported across Carrier Ethernet network, re-creating the TDM circuit at the far endRuns on a standard Ethernet Line Service (E-Line)Carrier Ethernet NetworkTDM Circuits(e.g. T1/E1 Lines)TDM Circuits(e.g. T1/E1 Lines)Circuit EmulatedTDM Traffic
20 Carrier Ethernet Architecture for Cable Operators HeadendHubBusiness Services over Fiber (GigE)CEE-LineInternetAccessUNIHome RunFiberAnalogTV FeedsE-LAND2ANodeEoCoaxEoHFCA2DVideoServerEQAMCEUNIAdInsertionCMTSDigital TV, VOD, Interactive TV, GamingSwitchedFiberOptical Metro Ring NetworkBusinessParkServicesManaged BusinessApplicationsEoDOCSIS(future)E-NNIUNIHubDedicated Fiber end-pointsDOCSIS end-pointsMEF E-LineEPL (Ethernet Private Line)EVPL (Ethernet Virtual Private Line)MEF E-LANConverged Services (Video, VoIP, HSI, VPNs)EoSONET/SDHAnother MSO or carrierNetworkWirelessPlantExtensionPONE-LineE-LANLeasedT1/DS3Voice/VideoTelephonyVoice gatewayWDMCEEoT1/DS3UNICEUNICEGreenfield Residential & Business Services
21 Related MEF Services Specifications Metro Ethernet Services Definitions Phase IIPurposeDefines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)Ethernet Services Attributes Phase 2MEF 10.1PurposeDefines the service attributes and parameters required to offer the services defined in MEF 6. Updated from Original MEF 10 in October 2006AudienceAppropriate 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.
22 Buyer Benefits Reduce operating costs Through aggregation and inter-operability of multiple Carrier Ethernet services over a single standards-based physical connectionReduce capital costsThrough use of logical connections instead of capital intensive physical assets (e.g. POPs, circuits, etc.)Increase footprint and reach larger and/or new marketsGeographic (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 benefitsBuilding a standardized ENNI is faster than building out proprietary infrastructureQuicker recognition of internal SP infrastructure projects’ financial benefitsIncrease business efficienciesLower management costs through proven inter-operability processes (ordering, implementation, operations, billing)The benefits on the “buy” side of the relationship include… summarize the charts.
23 Seller Benefits Reduce operating costs Reduce capital costs Spreading fixed operating costs over a large number of inter-operable, standards-based virtual connectionsReduce capital costsFaster amortization of initial investment through larger number of virtual connectionsDefend footprintBy providing efficient access to seller’s footprint under seller SP commercial termsReduce time to market and improve financial benefitsMore efficient sales distribution channel using ENNIs instead of multiple EPLsEnables faster revenue recognition from retail customersIncrease business efficienciesThrough standardized ENNI fulfillment and repair processesThe benefits on the “sell” side of the relationship include… summarize the charts.
24 SummaryImplementation of Carrier Ethernet Global Interconnects worldwide with continued acceleration in 2011 and beyondMEF Global Interconnect Program, consisting of MEF Specifications, Certification and Connect, provides a common and standard framework for the industryCollectively, 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
25 MEF Global Interconnect Summary Totality of interconnected autonomous Carrier Ethernet networks worldwideEnablingStandardized and streamlined delivery of MEF-certified Carrier Ethernet servicesEnd-to-end Class of Service, management and protectionThe MEF considers Global Interconnect as essential for accelerating worldwide adoption of Carrier Ethernet services, and has positioned it in as the third phase of the evolution of Carrier Ethernet after Specifications and Certification. StandardsEducationCompliance
26 Thank you! Visit the following MEF Web sites for more details: and