1. Developing Ethernet Services Offerings with MEF Specifications
Dmitry Dergalov,
Technical Director
RAD Data Communications-Russia
Tel/Fax +7 (495) /1097

2. MEF/Carrier Ethernet Scope
HD TV, TVoD, VoD, Content Providers
Host applications, Consolidated Servers
Gaming, DR, ERP
Internet information & Software apps
Voice/Video
Telephony
Metro, National, International
UNI
E-Line
UNI
E-LAN
UNI
E-Tree
E-LINE
Virtual Private Lines (EVPL)
Ethernet Private Lines (EPL)
Ethernet Internet Access
E-LAN Service
Multipoint L2 VPNs
Transparent LAN Service
Multicast networks
E-Tree Service
Rooted multi-point L2 VPNs
Broadcast networks
Telemetry networks
Business Services
Residential Transport
Mobile Backhaul 2

3. Delivered Over Variety of Access Media
Carrier Ethernet provides consistent services delivered to users connected over the widest variety of access networks
Ethernet
Ethernet
Direct Fiber
Ethernet over Fixed Wireless
COAX
Direct Fiber
Bonded Copper
Ethernet
Ethernet
SONET/ SDH
TDM
WDM Fiber
PON Fiber
Ethernet
Carrier 2
DS3/E3
Bonded T1/E1
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet

4. 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
Carrier Ethernet Exchange
Carrier Ethernet Service Providers
ENNI
Direct Connect
What is Global Interconnect?
it is interconnected, autonomous, Carrier Ethernet networks, worldwide
Enabling…
- 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 Companies
78 Service Providers
Global Representation
Standards
Education
Compliance
MEF 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 Program
Program 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 CoS
Quality of Service – Service Monitoring
Must 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 transactions
Reliability – Protection. Must provide protection: carrier class with geographical diversity
A true Carrier Ethernet exchange must facilitate each of the 5 attributes of Carrier Ethernet
Therefore, Carrier Ethernet Exchange, must interconnect Carrier Ethernet services with these five attributes
Carrier Ethernet is defined by MEF as Ethernet plus five carrier-class attributes:
Reliability; Standardized Services, Quality of Service, Service Management, Scalability
Deliver on-net experience off-net
Deliver 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 months
Scalability – 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 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 full presentation of Ethernet Services visit

8. MEF has Standardized Ethernet Services
E-Line Service – used to create
Ethernet Private Lines (EPL)
Virtual Private Lines
Ethernet Internet Access
Point-to-Point EVC
UNI
UNI
Enterprise Clients
E-LAN Service – used to create
Multipoint L2 VPNs
Transparent LAN Service
Multicast networks
Multi-point to
Multi-point EVC
UNI
UNI
UNI
SoHo & Residential Triple-Play
E-Tree Service – used to create
Rooted multi-point L2 VPNs
Broadcast networks
Telemetry networks
UNI
Rooted Multipoint EVC
UNI
UNI
Mobile Data/Video 8

9. Carrier Ethernet Architecture(1)
and the elements of Global Interconnect
MEF
Enabled by Carrier Ethernet
Enables Carrier Ethernet
Services, ENNI, OAM, CoS, Certification
MEF implementation recommendations
key to Carrier Ethernet worldwide adoption
OSS/BSS
App Layer
Eth Layer
Tran Layer

10. Carrier Ethernet Architecture (2)
Ethernet Services “Eth” Layer
Carrier Ethernet Network
Service Provider 1
Service Provider 2
Subscriber Site
Subscriber Site
UNI
I-NNI
E-NNI
I-NNI
UNI CE CE
Ethernet Services Layer Terminology
ETH
UNI-C
ETH
UNI-N
ETH
E-NNI
ETH
E-NNI
ETH
UNI-N
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

11. 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
EIR
EVC-2
EVC-3
UNI
EVC1
CoS 6
1Mbps CIR for VoIP
CoS 2
6Mbps CIR for VPN data traffic
3Mbps for Internet Access
EVC2
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 improves the network’s Goodput

12. Carrier Ethernet Interconnect Challenge
Operators need to interconnect their Carrier Ethernet Networks
UNI B2
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
UNI A1
Operator B
UNI A2
UNI B1
Operator A
UNI B3
UNI A3
UNI D1
UNI C2
Operator D
Operator C
UNI D3
UNI D2
At 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 improvement
Once a GI standard is finalized GC can move forward with new processes and may retrofit if appropriate to accommodate best of breed…
UNI C1
UNI C3
Proprietary interconnect
Every Interconnect arrangement is unique

13. Towards Standardized Interconnections
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
UNI B2
UNI A1
UNI A2
UNI B3
Operator A
Operator B
Operator C
Operator D
UNI C1
UNI D3
UNI C3
UNI D2
The 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.
Standardized
interconnect

14. Carrier Ethernet Interconnect Brings Global Reach
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
ISP
POP
Internet
Service Multiplexed Ethernet UNI
Carrier Ethernet Network B
ENNI CE
Without standardization, the providers have no common definition of how to interconnect, and lack a common language which often costs time and increases complexity
Standardization 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 A CE
Carrier Ethernet Network C
ENNI

15. ENNI Baseline (MEF26) Simple 2-carrier Model
Service Provider
Network
Operator Network
Subscriber Sites
ENNI
OVC_A
OVC_B
UNI
Simple 2-carrier Model
Subscriber Sites
Transit or Carrier Ethernet Exchange
Model
Service Provider 1 Network
Transit Operator or
Carrier Ethernet Exchange
Service Provider 2 Network
UNI
OVC_C
UNI
OVC_A
ENNI
OVC_B
ENNI
UNI
UNI
UNI
Subscriber Sites
UNI
Subscriber Sites
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

16. 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

17. Carrier Ethernet Exchange Model
Eliminates NxN connections, while retaining service differentiation
Ethernet Virtual Connection (EVC)
Service Provider’s OVC*
UNI
End-User
UNI
End-User
ENNI
ENNI
Exchange OVC
Carrier Ethernet Exchange
UNI
End-User
UNI
End-User
UNI
End-User
UNI
End-User
Contains Animation
Service Provider (Access)
Service Provider

18. Carrier Ethernet Scope and Reach
Bringing vastly extended scalability for business and residential users
HD TV
TVoD, VoD
Gaming, Business
Backup, ERP
Voice/Video
Telephony
Voice Gateway
Wireless Backhaul
Internet
Video
Source
Video
Source
COPPER, FIBER, COAX and WIRELESS
E-Line and
E-LAN service
Broadband
mobile data/video
COPPER, FIBER, EPON, WIRELESS, COAX CABLE
Small/Medium Business
Residential
Triple-Play
FTTx 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 end
Runs on a standard Ethernet Line Service (E-Line)
Carrier Ethernet Network
TDM Circuits
(e.g. T1/E1 Lines)
TDM Circuits
(e.g. T1/E1 Lines)
Circuit Emulated
TDM Traffic

20. Carrier Ethernet Architecture for Cable Operators
Headend
Hub
Business Services over Fiber (GigE) CE
E-Line
Internet
Access
UNI
Home Run
Fiber
Analog
TV Feeds
E-LAN
D2A
Node
EoCoax
EoHFC
A2D
Video
Server
EQAM CE
UNI Ad
Insertion
CMTS
Digital TV, VOD, Interactive TV, Gaming
Switched
Fiber
Optical Metro Ring Network
Business
Park
Services
Managed Business
Applications
EoDOCSIS
(future)
E-NNI
UNI
Hub
Dedicated Fiber end-points
DOCSIS end-points
MEF E-Line
EPL (Ethernet Private Line)EVPL (Ethernet Virtual Private Line)
MEF E-LAN
Converged Services (Video, VoIP, HSI, VPNs)
EoSONET
/SDH
Another MSO or carrier
Network
Wireless
Plant
Extension
PON
E-Line
E-LAN
Leased
T1/DS3
Voice/Video
Telephony
Voice gateway
WDM CE
EoT1/DS3
UNI CE
UNI CE
Greenfield Residential & Business Services

21. Related MEF Services Specifications
Metro Ethernet Services Definitions Phase II
Purpose
Defines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)
Ethernet Services Attributes Phase 2
MEF 10.1
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.

22. 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)
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 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
The benefits on the “sell” side of the relationship include… summarize the charts.

24. 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

25. 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
The 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.  
Standards
Education
Compliance

26. Thank you! Visit the following MEF Web sites for more details:
and