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Developing Ethernet Services Offerings
with MEF Specifications
Dmitry Dergalov,
Technical Director
RAD Data Communications-Russia
www.rad.ru
Tel/Fax +7 (495) 231-1239/1097
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MEF/Carrier Ethernet Scope
Business
ServicesResidential Transport
Metro, 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 overFixed Wireless
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Global InterconnectMajor Impact in 2010
Rapid growth of Carrier Ethernet
exchanges
100s service providers connecting
Local, Region, Global Interconnections
Industry building critical mass
for Carrier Ethernet Global
Interconnect
New Ethernet Service providers
joining Carrier Ethernet
community
InternationalCarrier 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
Servicesmust support Translation of MEF EVPL, E-Line,
E-LAN service types and profiles with multiple CoS
Quality of ServiceService Monitoring
Must support enforceable, measurable, end-to-end service
(frame delay, delay variation, availability).
ReliabilityProtection. Must provide protection: carrier
class with geographical diversity
Service ManagementProcess IntegrationMust support normalized process human and system for
process transactions
ScalabilityScalability. 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 Services
In 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 fu l l presentation of Ethernet Services visi t www.MetroEthernetForum .org/presentat ions)
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MEF has Standardized Ethernet Services
E-LineServiceused to create
Ethernet Private Lines (EPL) Virtual Private Lines
Ethernet Internet Access
UNI
Multi-point to
Multi-point EVC
UNIUNI
UNIPoint-to-Point EVC
UNI
E-LANServiceused to create
Multipoint L2 VPNs
Transparent LAN Service
Multicast networks
E-TreeServiceused to create Rooted multi-point L2 VPNs
Broadcast networks
Telemetry networks
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 byCarrier Ethernet
Enables CarrierEthernet
Services, ENNI, OAM,
CoS, Certification
MEF implementationrecommendations
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 EthernetNetwork
CE
UNI
Ethernet Services Eth Layer
Subscriber
Site
ETH
UNI-C
ETH
UNI-N
ETH
UNI-N
ETH
E-NNI
ETH
UNI-C
UNI: User Network Interface, UNI-C: UNI-customer side, UNI-N network side
NNI: Network to Network Interface, E-NNI: External NNI; I-NNI Internal NNI
CE: Customer Equipment
UNI
CE
I-NNI E-NNI
Service Provider 2
I-NNI
ETH
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 TrafficEngineering
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 EVC-2
EVC-3
EIR
UNIEVC
1
CoS 61Mbps CIRfor VoIP
CoS 2
6Mbps CIR
for VPNdata traffic
3Mbps forInternet Access
EVC2
10MbpsUNI
(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 EIRimproves the networks 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 operators CarrierEthernet 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 B1UNI B3
Operator C
UNI C3
UNI C1
UNI C2Operator D
UNI D1
UNI D2UNI D3
Proprietary
interconnect
Every Interconnect arrangement is unique
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Standardized
interconnect
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 enterprisecustomers
Reach new markets at lower
cost
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Interconnects facilitate service delivery that span multipleoperators networks
Standard Carrier Ethernet service handoffs between operators simplifies provisioning andtroubleshooting 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
ISP
POP
Internet ServiceMultiplexed
Ethernet UNI
CE
CEENNI
ENNI
Carrier EthernetNetwork B
Carrier EthernetNetwork A
Carrier EthernetNetwork C
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ENNI Baseline (MEF26)
Transit or Carrier
Ethernet Exc hange
Model
Simp le 2-carr ier
Model
Service Provider
NetworkOperator
Network SubscriberSites
ENNIOVC_A OVC_BUNI
UNI
UNIUNI
UNI
UNI
Transit Operator or
Carrier Ethernet ExchangeService Provider 1
Network
SubscriberSites
ENNIOVC_A OVC_B
UNI
UNI
UNIUNI
UNI
UNI
ENNI
Service Provider 2
Network
SubscriberSites
OVC_C
External Network-to-Network Interface(ENNI) for service availability Simple 2-carrier and multi-carrier service models
Ethernet Virtual Connection (EVC) between UNIsspread across multiple networks
Operator Virtual Connection (OVC) for each EVCsegment
Key ENNI requirements Services: p2p and mp EVC types, single and multipleCoS per EVC
Encapsulation: Standard S-Tag frame format
Scalability: 1 and 10 Gbps PHYs
ENNI Protection: 2-link LAG, active/standby, LACP
SubscriberSites
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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
Providers OVC*
Service
Providers OVC*
ENNI
ENNI
UNI
End-User
UNI
End-User
UNI
End-User
UNI
End-User
UNI
End-UserExchange
OVC
Carrier
EthernetExchange
Carrier
EthernetExchange
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Carrier Ethernet Scope and Reach
Bringing vastly extended scalability for business and residential users
Wireless
Backhaul
VoiceGateway
Voice/VideoTelephony
HD TVTVoD, VoD
Gaming, BusinessBackup, ERP
Residential
Triple-Play
Broadband
mobile data/video
Video
Source
Video
Source
Small/Medium
Business
Internet
FTTx and DSLAM , Cable Modem
E-Line and
E-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 Operators
Headend Hub
EQAM
CMTS
Optical Metro Ring Network
Video
Server
D2A
Ad
Insertion
E-LAN
E-LineBusiness Services
over Fiber (GigE)
Voicegateway
Voice/VideoTelephony
Digital TV, VOD,Interactive TV,
Gaming
Managed BusinessApplications
Internet
AccessAnalog
TV Feeds
A2D
HubUNI
CE
E-NNI
Another MSO or carrier
Network
EoDOCSIS(future)
EoT1/DS3
PON
Greenfield Residential & Business Services
EoSONET/SDH
CEUNI
WDM
UNI
Home RunFiber
EoCoaxEoHFC
SwitchedFiber
Business
Park
Business
Services
Node
E-LineE-LAN
CE
UNI
CE
Wireless
PlantExtension
Leased
T1/DS3
CEUNI
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Related MEF Services Specifications
Purpose Defines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)
MEF 6.1
Purpose
Defines 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 2MEF 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 footprintand 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 improvefinancial benefits
Building a standardized ENNI is faster than building out proprietary
infrastructure
Quicker recognition of internal SP infrastructure projects financialbenefits
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 sellers footprint under seller SP commercial terms Reduce time to market and improvefinancial 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 standardizedand 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.organd www.EthernetAcademy.net
http://www.metroethernetforum.org/http://www.ethernetacademy.net/http://www.ethernetacademy.net/http://www.metroethernetforum.org/Top Related