1. 1 1 Carrier Ethernet Services Overview 26 September2007 Moderator: Ralph Santitoro - Turin Networks Panelists: Tony Tam - Anda Networks Dr. Sarath Kumar - Tejas Networks Umesh Kukreja - Atrica

2. 2 Umesh Kukreja Director of Product Marketing Atrica umesh_kukreja@atrica.com Ralph Santitoro Chair, MEF Web Marketing Committee Director of Carrier Ethernet Solutions Turin Networks Ralph@Marcom-Services.net Dr. Sarath Kumar Group Director, Ethernet Products Group Tejas Networks sarath@india.tejasnetworks.com Tony Tam Sr. Product Line Manager Anda Networks ttam@andanetworks.com

3. 3 Agenda Carrier Ethernet Terminology –User to Network Interface (UNI) –Network to Network Interface (NNI) –Ethernet Virtual Connections (EVCs) –Ethernet Service Types Ethernet Service Definitions –E-Line Services –E-LAN Services –E-Tree Services Ethernet Service Attributes –EVC and UNI Service Attributes –Bandwidth Profiles –Traffic Management Ethernet Service Application Examples –Ethernet Private Line –Ethernet Virtual Private Line –E-LAN Services –E-Tree Services

4. 4 4 Service Definitions Ralph Santitoro 4

5. 5 Carrier Ethernet Terminology User to Network Interface (UNI) –Physical interface/demarcation between service provider/Cable Operator/Carrier/ and subscriber Ethernet Virtual Connection (EVC) –Logical representation of an Ethernet service as defined by the associate between 2 or more UNIs Network to Network Interface (NNI) –Demarcation between carrier Ethernet networks operated by one or more carriers –An active project of the MEF UNI, EVC and NNI are the Fundamental Constructs of an Ethernet Service

6. 6 Carrier Ethernet Network UNI MEF Carrier Ethernet Terminology - User to Network Interface (UNI) Physical Interface 10/100/1000Mbps or 10Gbps –The UNI is always provided by the Service Provider MEF has defined two types of UNIs –MEF UNI Type I A UNI compliant with MEF 13 Manually Configurable –MEF UNI Type II Automatically Configurable via E-LMI Manageable via OAM CE: Customer Equipment, UNI: User Network Interface. MEF certified Carrier Ethernet products CE UNI

7. 7 MEF Carrier Ethernet Terminology - Ethernet Virtual Connection (EVC) An Ethernet Service Instantiation –Most commonly identified via 802.1ad SVLAN-ID Connects two or more subscriber sites (UNIs) –Can multiplex multiple EVCs on the same UNI Three types of EVCs defined in MEF 10.1 TS –Point-to-Point –Multipoint-to-Multipoint –Rooted Multipoint (Point-to-Multipoint)

8. 8 MEF Ethernet Service Definition Framework Ethernet Service Type –Categorizes the service based on its EVC type Point-to-Point, Multipoint-to-Multipoint or Point-to-Multipoint Ethernet Service Attributes and Parameters –Specifies the UNI and EVC requirements for each Ethernet Service Type The MEF defines Ethernet Services using this Framework

9. 9 Carrier Ethernet: Two Service Types Using EVCs E-Line Service Type used to create –Ethernet Private Lines –Virtual Private Lines –Ethernet Internet Access E-LAN Service Type used to create –Multipoint Layer 2 VPNs –Transparent LAN Service –Foundation for Multicast networks TLS, IPTV E-Line Service Type Point-to-Point EVC Carrier Ethernet Network CE UNI CE UNI: User Network Interface, CE: Customer EquipmentMEF certified Carrier Ethernet products E-LAN Service Type Multipoint-to-Multipoint EVC Carrier Ethernet Network CE UNI CE UNI

10. Service Definitions Tony Tam 10

11. 11 Services Using E-Line Service Type Ethernet Private Line (EPL) –Replaces a TDM Private line –Dedicated UNIs for Point-to-Point connections –Single Ethernet Virtual Connection (EVC) per UNI –The most popular Ethernet service due to its simplicity Point-to-Point EVCs Carrier Ethernet Network CE UNI CE UNI CE UNI ISP POP UNI Storage Service Provider Internet

12. 12 Services Using E-Line Service Type Ethernet Virtual Private Line (EVPL) –Replaces Frame Relay or ATM services –Supports Service Multiplexed UNI i.e., multiple EVCs per UNI –Enables multiple services to be offered over a single physical connection (UNI) to customer premise equipment Service Multiplexed Ethernet UNI Point-to-Point EVCs Carrier Ethernet Network CE UNI CE UNI CE UNI

13. 13 Services Using E-LAN Service Type Ethernet Private LAN and Ethernet Virtual Private LAN Services –Supports dedicated or service-multiplexed UNIs –Supports transparent LAN services and multipoint Layer 2 VPNs Multipoint-to-Multipoint EVC Carrier Ethernet Network CE UNI CE UNI Ethernet Private LAN example

14. 14 Services Using E-Tree Service Type Ethernet Private Tree (EP-Tree) and Ethernet Virtual Private Tree (EVP-Tree) Services –Enables Point-to-Multipoint Services with less provisioning than typical hub and spoke configuration using E-Lines Provides traffic separation between users with traffic from one “leaf” being allowed to arrive at one of more “Roots” but never being transmitted to other “leaves” Root Carrier Ethernet Network CE UNI CE Leaf UNI CE Leaf Rooted-Multipoint EVC Ethernet Private Tree example

15. 15 Service Attributes Dr. Sarath Kumar 15

16. 16 Service Attributes EVC Service Attributes –Details regarding the EVC including: Bandwidth profiles, QoS Assignment and Tagging options Frame Delay (Latency), Frame Delay Variation (Jitter), Frame Loss Ratio UNI Service Attributes –Details regarding the UNI including: Physical interface capabilities Service multiplexing capability C-VLAN bundling capability EVC and UNI Bandwidth Profiles Service Attributes –Committed Information Rate (CIR) –Excess Information Rate (EIR) –MTU (frame) size

17. 17 Bandwidth Profiles per EVC BW profiles per EVC –CIR (Committed Information Rate) Frame delivery obligation per SLA –EIR (Excess Information Rate) Excess frame delivery allowed –typically not subject to SLA –CBS/EBS (Committed/Excess Burst Size) Size of burst window for CIR/EIR Color Marking Green – Forwarded frames –CIR conforming traffic Yellow – Discard Eligible frames –Non-conformant with CIR, conformant with EIR Red – Discarded frames –Non-conformant with CIR and EIR Total UNI BW EVC1 CIR EIR EVC2 CI R EIR EVC3 CIR EIR

18. 18 UNI EVC 1 EVC 2 EVC 3 Ingress Bandwidth Profile Per Ingress UNI UNI EVC 1 EVC 2 EVC 3 Ingress Bandwidth Profile Per EVC 1 Ingress Bandwidth Profile Per EVC 2 Ingress Bandwidth Profile Per EVC 3 UNI EVC 1 CE-VLAN CoS 6 Ingress Bandwidth Profile Per CoS ID 6 CE-VLAN CoS 4 CE-VLAN CoS 2 Ingress Bandwidth Profile Per CoS ID 4 Ingress Bandwidth Profile Per CoS ID 2 EVC 2 Port-based Port/VLAN-based Port/VLAN/CoS-based MEF 10.1 Traffic Management Model

19. 19 Ethernet Service Application Examples Umesh Kukreja 19

20. 20 EPL Example HQ Branch EPL Simple configuration “The port to the Internet is un- trusted” “The port to the branches is trusted” No coordination with MEN SP for HQ to branch subnets Fractional bandwidth (Bandwidth Profile) options to offer sub-rate services Internet Firewall EPL

21. 21 EVPL Example ISP Customer 1 Internet Service Provider (ISP) ISP Customer 2 ISP Customer 3 Service Multiplexed UNI VLAN2000  Blue VLAN 2000  Blue VLAN2000  Yellow VLAN 2000  Yellow VLAN2000  Green VLAN 2000  Green VLAN 178  Blue VLAN 179  Yellow VLAN 180  Green Efficient use of ISP router ports Easy configuration at ISP customer sites This port and VLAN 2000 (or even untagged) to ISP

22. 22 EVP-LAN Example Deadbeat Detect Credit Check, Inc. (DDCC) Instant Cash Loans, Inc. (ICL) Walk In Drive Out Used Cars, Inc. (WIDO) Redundant points of access for critical availability higher layer service Multi-point to Multi-point service e.g. LAN Extension Service, IP Multi-cast ICL and WIDO Used Cars cannot see each other’s traffic Service Multiplexing A B D EVC 1 C EVC 2

23. 23 EP-Tree Example A B C D EVC 1 Internet Service Provider (ISP) Small Guy Travel Root Leaves Diminutive Guy Gaming Center Tiny Guy Coffee Efficient use of ISP’s router port Simple configuration for the little guys Small, Tiny, and Diminutive Guys can’t see each other’s traffic Second Root would provide redundant internet access

24. 24 EVP-Tree Example A B C D EVC 1 Internet Service Provider (ISP) Small Guy Travel Root Leaves Diminutive Guy Gaming Center Tiny Guy Coffee Efficient distribution of elevator video Small, Tiny, and Diminutive Guys can’t see each other’s traffic, EV Franchises can’t see each other’s traffic Second Root could be added to provide redundant Internet access connections Some limits on what routing protocols can be used Elevator Video Franchises Leaves Service Multiplexing

25. 25 Q & A Umesh Kukreja Director of Product Marketing Atrica umesh_kukreja@atrica.com Ralph Santitoro Chair, MEF Web Marketing Committee Director of Carrier Ethernet Solutions Turin Networks Ralph@Marcom-Services.net Dr. Sarath Kumar Group Director, Ethernet Products Group Tejas Networks sarath@india.tejasnetworks.com Tony Tam Sr. Product Line Manager Anda Networks ttam@andanetworks.com

26. 26 More at www.MetroEthernetForum.org/presentations.htm