MEF Report: User to Network Interface UNI Network-to-Network Interfaces E-NNI and Global Interconnection Tools

1. MEF Report: User to Network Interface (UNI)  Network-to-Network Interfaces (E-NNI)and Global Interconnection Tools

2. Agenda Carrier Ethernet Challenges and Services Ethernet Services Network Demarcation: UNI and E-NNI NID Project Global Interconnect Tools Global Services Directory Wholesale Access Template

3. Carrier Ethernet Challenges and Services

4. Demand Drivers � Services and Bandwidth

5. Some of the Challenges of CE Service Providers Turn-up services quickly and efficiently - ASAP On/Off-Net services � meet global customer needs - buy and sell / wholesale with other providers - generate revenue on and off-net Reliability/Up-time (99.999%) - enable high value services with SLAs for higher rate revenues Quality � build customer satisfaction � increase customer retention � keep revenues coming Efficient operation - keep OpEx costs down � be competitive and profitable Traditional Private Lease Line and Private Virtual Connection (PVC) are provided through T1/T3 or SONET/SHD access loops. They are complicated, costly, somewhat slow and not very scalable. They do offer very consistent and reliable performances, and have built-in OAM for fault detection and management.Traditional Private Lease Line and Private Virtual Connection (PVC) are provided through T1/T3 or SONET/SHD access loops. They are complicated, costly, somewhat slow and not very scalable. They do offer very consistent and reliable performances, and have built-in OAM for fault detection and management.

6. The MEF 5-Attributes of Carrier Ethernet

7. MEF defined Basic CE Services

8. Global Services crossing carrier boundaries

9. Carrier Ethernet�s �Evolution� Basic Ethernet Access Services definition From Metro to Regional Services From Regional to National Services From National to International / Global Services From Intra-Provider (In-franchise/IF) to Inter-Provider (out-of-franchise/OOF) Services

10. Three Phases of Carrier Ethernet

11. Carrier Ethernet Networks Demarcation:UNI and E-NNI

12. Carrier Ethernet Demarcation Points UNI - User-to-Network Interface Demarcation point between Ethernet Service Provider/Access Network Provider and Subscriber Ethernet Service / Ethernet Virtual Connection (EVC) starting / ending point E-NNI - External Network-to-Network Interface Demarcation point between: Ethernet Service Provider and Access Network Provider Ethernet Access Provider and Transport Network Provider EVC - Ethernet Virtual Connection Ethernet service connecting between 2 or more UNIs

13. The MEF User Network Interface The User Network Interface (UNI) The UNI is the single point that is the demarcation between the customer and the service provider/Cable Operator/Carrier/MSO The UNI is typically at a port on an active device owned and operated by the Service Provider The UNI in a Carrier Ethernet Network uses a physical Ethernet Interface at operating speeds 10Mbs, 100Mbps, 1Gbps or 10Gbps

14. Functional Elements of the UNI There are two functional elements (typically*) located in two connected devices situated on either side of the UNI demarcation point: UNI-C: Executes the processes of the customer side UNI-N: Executes the processes of the network side * All the functions of the UNI-N and UNI-C need not be located in the same physical device as they may be located in several devices

15. From UNI 1 to UNI 2 MEF 11 introduced 3 types of UNI UNI Type 1 (now defined in MEF 13), November 2005 Service Provider and Customer manually configure the UNI-N and UNI-C for services UNI Type 1.1 and 1.2 are defined Type 1.1 : Non-multiplexed UNI for Services like EPL Type 1.2 : Multiplexed UNI for Services like EVPL UNI Type 2 (now defined in MEF 20) An automated implementation model allowing UNI-C to retrieve EVC status and configuration information from UNI-N Enhanced UNI attributes Additional fault management and protection functionality UNI Type 2.1 and 2.2 are defined Backward compatibility with UNI Type 1 UNI Type 3 (Possible future MEF Specification) Allows the UNI-C to request, signal and negotiate EVCs and its associated Service Attributes to the UNI-N. UNI Type 3 is for further study.

16. Functionality and Scope of MEF 20 Ethernet Local Management Interface (E-LMI) Allows UNI-C to retrieve EVC status and service attributes from UNI-N as specified in MEF 16 Link OAM (Operation, Administration and Management) Allows customer and service provider to monitor and diagnose the UNI connectivity via Link OAM (link level) Service OAM Allows customer and service provider to monitor and diagnose the UNI connectivity via Service OAM (end-to-end) Protection Capability to protect UNI against port failure via Link Aggregation protocol Enhanced UNI Attributes Such as bandwidth profile per egress UNI, Maximum Transfer Unit size, etc. as defined in MEF 10., MEF 6.1 L2CP Handling Governs the passing or filtering of Layer 2 control protocols to the Ethernet Virtual Connections

17. UNI 2 - MEF 20 Implementation Options MEF 20 Specifies phased/alternate implementation. This allows quicker time to market and faster time to revenue for all concerned

18. Testing UNI Types 1 & 2

19. Global Interconnect: E-NNI is a Key element External Network to Network Interface (E-NNI) A reference point where 2 Service Providers meet in support of specified MEF Services Supports Multiple Carrier Ethernet networks and services, management, QoS , etc. Supports simple interconnect and tunneling Impact on the Industry Creates ubiquitous service level network for large and mid-size businesses Generates new worldwide business opportunities for service providers at lower cost Brings new product and revenue opportunities for vendors

20. E-NNI Phase I In Scope: E-LINE and E-LAN services (but not E-TREE) Multiple CENS Inc. multiple E-NNIs or links between two CENs E-NNI protection (but not End-to-End service protection) Customers & SP must provide loop-free connectivity End-to-End OAM and QoS Inc. traffic �coloring� via IEEE PCPs or IETF DSCPs Service Frame delineation via IEEE 802.1 No S-Tag or single S-Tag

21. Service Type MTU Endpoint Service Mux Tag ID/CoS Preservation Link Rate L2CPs E-NNI Attributes

22. E-NNI Constructs: Putting it all together Access Network Provider Provides CEVC1 connection between Subscriber UNI1 (RUNI) and VUNI1 at E-NNI1 with Transport Network Provider Transport Network Provider Provides CEVC2 connection between E-NNI1 (VUNI2) and E-NNI2 (VUNI3) with Ethernet Service Provider Ethernet Service Provider Provides connection to E-NNI2 with Transport Network Provider Provides End-to-End Ethernet Service to Subscriber Provides EVC between UNI1 and UNI2

23. Global Interconnect: E-NNI is a Key element MEF is acutely aware of the impact on the industry � Strong push from the board to release a spec this year

24. NID Project

25. Network Interface Device (NID)

26. NID Types: Transport NID

27. NID Types: Service NID

28. Tunnel / Tunnel + Transport / Hybrid NIDs

29. MEF Global Interconnect Tools

30. MEF worked with Heavy Reading to develop database of Ethernet Service Providers worldwide Identifies Carrier Ethernet services by city, country, and service application Four phase project to: Cover MEF Service Providers with basic service and location information - Now Add more service providers and allow real time updates via Service Provider back-end Provide in-depth service information, Non-MEF Service Providers (TBD) Global Services Directory Summary

31. Global Services Directory Summary Business Users Find Carrier Ethernet services anywhere in the world. Service Providers Find a partner to build a global Carrier Ethernet service. Featuring Free access to interactive map driven system Latest info on available services globally, locally http://www.metroethernetforum.org/gsd

32. Global Services Directory Summary Business Users Find Carrier Ethernet services anywhere in the world. Service Providers Find a partner to build a global Carrier Ethernet service. Featuring Free access to interactive map driven system Latest info on available services globally, locally http://www.metroethernetforum.org/gsd

33. Wholesale Access Interconnection Group (WAIG)

34. WAIG Template

35. WAIG Template (cont.)

36. Global WAIG Status Template is available to MEF member companies Streamlined template draft published � 1Q09 MEF meeting (San Francisco) Early adaptors can start using Templates - Now Tom Franklin Leading Asking for continued and additional participant; perhaps sub-team leader Input of parameters by August 17; meeting by 8/24 Not limited to telecom, Wholesale arm of Cable COs Processes include not only ordering, also monitoring and maint Tom Franklin Leading Asking for continued and additional participant; perhaps sub-team leader Input of parameters by August 17; meeting by 8/24 Not limited to telecom, Wholesale arm of Cable COs Processes include not only ordering, also monitoring and maint

37. Three Phases of Carrier Ethernet

38. Summary - Carrier Ethernet�s �Evolution�

39. Thank You