Carrier Ethernet: User to Network Interface UNI Network-to-Network Interfaces E-NNI and End-to-End OAM

1. Carrier Ethernet: User to Network Interface (UNI)  Network-to-Network Interfaces (E-NNI)and End-to-End OAM

2. Agenda Carrier Ethernet Services and Challenges Carrier Ethernet (CE) MEF defined Services CE Service Provider challenges Ethernet Services Network Basics Demarcation Points - Definition of UNI and E-NNI Anatomy of Ethernet Service Link and Service OAM OAM Hierarchies, Components and Protocols Link and Service OAMs Wholesale Logistics Global Services Directory Wholesale Access Template

3. Carrier Ethernet Services and Challenges

4. 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

5. Demand Drivers � Services and Bandwidth

6. The MEF 5-Attributes of Carrier Ethernet

7. MEF defined Basic CE Services

8. Global Services crossing carrier boundaries

9. Some of the Challenges of CE Service Providers Turn-up services quickly and efficiently � be competitive, get revenues 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.

10. Carrier Ethernet Network Basics

11. 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

12. Carrier Ethernet Service 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

13. Network Interface Device (NID)

14. Global Services crossing carrier boundaries

15. Link and Service OAMs

17. Link Fault Management OAM Link OAM - IEEE 802.3ah � Per link (point-to-point): Link monitoring -- Remote loopback Remote failure indication -- Loopback Control Good for single links, but does not monitor across EVC

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19. E2E Service OAM - Hierarchical Domains

20. Ethernet Service Connectivity Fault Management IEEE 802.1ag for EVC Connectivity Fault Management For Protection/Restoration Connectivity Check Messages (CCMs) for heartbeats For diagnostic purposes Connectivity Check (Layer 2 Ping), Link Trace, Loopbacks CCMs initiated between: Management Endpoints (MEPs / UNIs) Management Intermediate Points (MIPs / NNIs) Management Endpoints and Intermediate Points (UNI-NNI)

21. Ethernet Service Continuity Check

22. Ethernet Link Trace

23. Service Performance Management Key Metrics Frame/Packet Delay � Latency (e.g. UNI/UNI 30ms@99.9%@15min) Frame/Packet Delay Variation � Jitter (e.g. 10ms@99.9%@15min) Frame/Packet Loss Ratio (e.g. CIR FL=1%@15min) Service Availability (e.g. 99.99%@30days) ITU-T has defined measurement framework/metrics for items 1-3 IP packet-based measurements ITU-T Y.1731 defines how to use 802.1ag to measure performance MEF has defined measurement framework for items 1-4 Ethernet Frame-based measurements MEF 10.1 defines formulae for metrics calculation

24. Interfaces and Ethernet Virtual Circuits

25. Summary New Protocol Solutions Point-to-Point Link OAM (802.3ah) End-to-End Service Connectivity Fault OAM (802.1ag) End-to-End Service Performance Monitoring OAM (Y.1731) Enable quick turn-up � Acct acquisition/revenue Increase reliability/up-time � Acct retention/revenue Enables SLA commitments � Keep revenue Enable efficient service operation / maintenance (man/machine/time/energy) � reduce OPEX 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.

26. Wholesale Logistics

27. 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

28. 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

29. Global Services Directory Project Review MEF worked with Heavy Reading to develop up-to-date 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 Add more service providers and allow real time updates via Service Provider back-end Provide in-depth service information, Non-MEF Service Providers (TBD)

30. Service Provider Participants

31. Wholesale Access Interconnection Group

32. WAIG Template

33. WAIG Template (cont.)

34. WAIG Status Draft is being posted for MEF membership review �Trial run� Access Providers to fill-out the draft template � expect comments Implement comments Initial publication � Q4 (Oct. 08) MEF meeting (Malta) Early adaptors can start using Template 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

35. Carrier Ethernet�s �Evolution�

36. Thank You