Introduction to Ethernet Services

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

Agenda Carrier Ethernet Terminology Ethernet Service Definitions 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

Ralph Santitoro - Moderator Introduction Ralph Santitoro - Moderator

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

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 CE Carrier Ethernet Network customer responsibility Service provider responsibility UNI

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)

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

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

MEF Ethernet Service Definition Classification Service Type Port-Based (All-to-One Bundling) VLAN-Based (Service Multiplexed) E-Line (Point-to-Point EVC) Ethernet Private Line (EPL) Ethernet Virtual Private Line (EVPL) E-LAN (multipoint-to-multipoint EVC) Ethernet Private LAN (EP-LAN) Ethernet Virtual Private LAN (EVP-LAN) E-Tree (rooted multipoint EVC) Ethernet Private Tree (EP-Tree) Ethernet Virtual Private Tree (EVP-Tree) 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)

Service Definitions Brian Bortz

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 CE UNI ISP POP Internet UNI Point-to-Point EVCs CE

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 UNI Carrier Ethernet Network CE UNI CE Point-to-Point EVCs

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 Multipoint-to-Multipoint EVC CE Ethernet Private LAN example

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 Rooted-Multipoint EVC UNI Ethernet Private Tree example CE

Service Attributes Arie Goldberg

Service Attributes EVC Service Attributes UNI 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

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

Ethernet Service Application Examples Paul Indoo

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

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

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

Ethernet Private Tree (EP-Tree) Example Residential Customer A Internet Service Provider (ISP) D B Residential Customer B EVC1 C Root Leaves Residential Customer C 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

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

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

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