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Introduction to Ethernet Services

Introduction to Ethernet Services. Arie Goldberg CEO and Chief Technologist Omnitron Systems MEF Director and Secretary agoldberg@omnitron-systems.com. Brian Bortz CEO Resolute Networks brianb@ResoluteNetworks.com. Paul Indoo Product Marketing Manager Nortel pin@nortel.com.

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Introduction to Ethernet Services

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  1. Introduction to Ethernet Services

  2. Arie Goldberg CEO and Chief Technologist Omnitron Systems MEF Director and Secretary agoldberg@omnitron-systems.com Brian Bortz CEO Resolute Networks brianb@ResoluteNetworks.com Paul Indoo Product Marketing Manager Nortel pin@nortel.com Moderator and Panelists Ralph Santitoro Director of Carrier Ethernet Solutions Turin Networks MEF Director & Co-chair Security Group Ralph@Marcom-Services.net

  3. 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

  4. Introduction Ralph Santitoro - Moderator

  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 UNI, EVC and NNI are the Fundamental Constructs of an Ethernet Service

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

  7. 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)

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

  9. 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

  10. 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)

  11. Service Definitions Brian Bortz

  12. 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 Storage Service Provider UNI CE UNI Carrier Ethernet Network UNI ISP POP Internet CE UNI Point-to-Point EVCs CE

  13. 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 Service Multiplexed Ethernet UNI UNI CE Carrier Ethernet Network UNI CE UNI CE Point-to-Point EVCs

  14. 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 UNI CE Carrier Ethernet Network UNI CE UNI CE Multipoint-to-Multipoint EVC Ethernet Private LAN example

  15. 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 Carrier Ethernet Network UNI CE Leaf Root Leaf UNI UNI Leaf CE CE UNI Rooted-Multipoint EVC Ethernet Private Tree example CE

  16. Service Attributes Arie Goldberg

  17. 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

  18. 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 EVC-2 EVC-1 EIR EIR CIR CIR EVC-3 CIR EIR CoS 6 1Mbps CIR for VoIP • 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 EVC1 CoS 2 6Mbps CIR for VPN data traffic 10Mbps UNI (port) UNI EVC2 3Mbps for Internet Access CIR defines the assured bandwidth EIR improves the network’s Goodput

  19. Ethernet Service Application Examples Paul Indoo

  20. 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) Internet Branch EPL EPL EPL Firewall Branch HQ

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

  22. Ethernet Virtual Private LAN (EVP-LAN) Example Service Multiplexing A C Retailer A EVC1 Credit Card Processor D EVC2 B Retailer B • Redundant points of access for critical availability of Credit Card Processor service • Multipoint-to-Multipoint service supporting LAN Extension • Retailer A and B traffic isolated from each other over separate EVCs

  23. Ethernet Private Tree (EP-Tree) Example A Residential Customer A Internet Service Provider (ISP) D B Residential Customer B EVC1 C Root Residential Customer C Leaves • Efficient use of ISP’s router port • Simple configuration for each Customer • Customer’s can’t see each other’s traffic • Second Root would provide redundant Internet access

  24. Ethernet Virtual Private Tree (EVP-Tree) Example Newscast Video Provider Service Multiplexing Leaves A Hotel Customer A Internet Service Provider (ISP) D B Hotel Customer B EVC1 C Root Hotel Customer C Leaves • Efficient distribution of News video to Hotel Customers • Hotel Customers can’t see each other’s traffic, Newscast Video Provider and ISP 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

  25. Q & A Arie Goldberg CEO and Chief Technologist Omnitron Systems MEF Director and Secretary agoldberg@omnitron-systems.com Brian Bortz CEO Resolute Networks brianb@ResoluteNetworks.com Paul Indoo Product Marketing Manager Nortel pin@nortel.com Ralph Santitoro Director of Carrier Ethernet Solutions Turin Networks MEF Director & Co-chair Security Group Ralph@Marcom-Services.net

  26. For in-depth presentations of Carrier Ethernet for business, Ethernet services, technical overview, certification program etc., visit: www.metroethernetforum.org/presentations For more information regarding joining the MEF: Visit: www.metroethernetforum.org Email us at: manager@metroethernetforum.org Call us at: +1.310.258.8032 (California, USA)

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