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Introduction to Ethernet Services

Agenda. Carrier Ethernet TerminologyUNI, NNIEthernet Virtual Connections (EVCs)E-Line, E-LAN and E-Tree Services TypesEthernet Service DefinitionsEPL and EVPLEP-LAN and EVP-LANEP-Tree and EVP-TreeEthernet Service AttributesEVC and UNI Service AttributesBandwidth ProfilesTraffic Management

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Introduction to Ethernet Services

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    1. Introduction to Ethernet Services Rafael Francis AVP Product Management, Data Platforms ECI Telecom

    2. Agenda Carrier Ethernet Terminology UNI, NNI Ethernet Virtual Connections (EVCs) E-Line, E-LAN and E-Tree Services Types Ethernet Service Definitions EPL and EVPL EP-LAN and EVP-LAN EP-Tree and EVP-Tree Ethernet Service Attributes EVC and UNI Service Attributes Bandwidth Profiles Traffic Management Ethernet Service Application Examples

    3. Introduction

    4. 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

    5. MEF Carrier Ethernet Terminology - User to Network Interface (UNI) Ethernet service demarcation point between customer (subscriber) and service provider Physical Ethernet Interface operating at: 10Mbps 100Mbps 1Gbps 10Gbps

    6. MEF Carrier Ethernet Terminology - Ethernet Virtual Connection (EVC) An Ethernet Service Instantiation Most commonly identified via 802.1ad S-VLAN ID Connects two or more subscriber sites (UNIs) Can multiplex multiple EVCs on the same UNI Three types of EVCs defined by MEF Point-to-Point, Multipoint-to-Multipoint, Rooted Multipoint (Point-to-Multipoint) Typically distinguished by VLAN tags or Q-in-Q

    7. Carrier Ethernet: Three Ethernet Service Types E-Line Service Type Ethernet Private Lines Virtual Private Lines (site-to-site Layer 2 VPNs) Ethernet Internet Access E-LAN Service Type Multi-site Layer 2 VPNs Transparent LAN Service E-Tree Service Type Point-to-Multipoint Infrastructure Triple play backhaul Cell sites backhauled to mobile switching center

    8. MEF Ethernet Service Definition Classification MEF Services are classified into two categories: Port-based Single Service Instance per UNI (dedicated network resource) VLAN-based Multiple Service Instances per UNI (shared network resource)

    9. Service Definitions

    10. Services Using E-Line Service Type Ethernet Private Line (EPL) Replaces a TDM Private line Port-based service with single service (EVC) across dedicated UNIs providing site-to-site connectivity Typically delivered over SDH (Ethernet over SDH) Most popular Ethernet service due to its simplicity

    11. Services Using E-Line Service Type Ethernet Virtual Private Line (EVPL) Replaces Frame Relay or ATM L2 VPN services To deliver higher bandwidth, end-to-end services Enables multiple services (EVCs) to be delivered over single physical connection (UNI) to customer premises Supports “hub and spoke” connectivity via Service Multiplexed UNI at hub site Similar to Frame Relay or Private Line hub and spoke deployments

    12. Services Using E-LAN Service Type Ethernet Private LAN (EP-LAN) and Ethernet Virtual Private LAN (EVP-LAN) Services Supports dedicated or service-multiplexed UNIs Supports transparent LAN services and multipoint Layer 2 VPNs

    13. 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 using EVPLs for large hub & spoke deployments Provides traffic separation between users (Leaf UNIs) Each “Leaf” UNI interchanged with “Root” UNI(s) No exchange of traffic between “Leaf” UNIs

    14. Service Attributes

    15. Service Attributes EVC Service Attributes Details regarding the EVC including: Bandwidth profiles CoS Identification Service Performance 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

    16. EVC Service Attributes 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

    17. Ethernet Service Application Examples

    18. Ethernet Private Line (EPL) Example Simple configuration Port to the Internet is “un-trusted” Port to the branches is “trusted” No coordination between Enterprise and Service Provider for Enterprise to Headquarters (HQ) to Branch Subnets Bandwidth Profile options Flexible options to offer full line rate or sub-rate services Example: 10Mbps Ethernet UNI 10Mbps CIR (line rate) or 5Mbps CIR (sub-rate)

    19. Ethernet Virtual Private Line (EVPL) Example

    20. Ethernet Virtual Private LAN (EVP-LAN) Example

    21. Ethernet Private Tree (EP-Tree) Example

    22. Ethernet Virtual Private Tree (EVP-Tree) Example

    23. Related MEF Services Specifications

    24. Questions?

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