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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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Presentation Transcript
moderator and panelists

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

agenda
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
introduction

Introduction

Ralph Santitoro - Moderator

carrier ethernet terminology
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

MEF Carrier Ethernet Terminology- User to Network Interface (UNI)

CE

Carrier Ethernet Network

customer responsibility

Service provider responsibility

UNI

mef carrier ethernet terminology ethernet virtual connection evc
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
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
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
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)
services using e line service type
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

services using e line service type13
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

services using e lan service type
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

services using e tree service type
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

service attributes

Service Attributes

Arie Goldberg

service attributes17
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
evc service attributes
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

ethernet private line epl example
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
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
ethernet virtual private lan evp lan example
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
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
ethernet virtual private tree evp tree example
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
slide25
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

slide26

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)