1. Introduction to Ethernet Services

2. Moderator and Panelists
Brian Bortz
CEO
Resolute Networks
Ralph Santitoro
Director of Carrier Ethernet Solutions
Turin Networks
MEF Director & Co-chair Security Group
Arie Goldberg
CEO and Chief Technologist
Omnitron Systems
MEF Director and Secretary
Paul Indoo
Product Marketing Manager
Nortel

3. 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

4. Ralph Santitoro - Moderator
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. 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

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
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)

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 CE
UNI
ISP
POP
Internet
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
UNI
Carrier Ethernet Network 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
Multipoint-to-Multipoint EVC CE
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
Rooted-Multipoint EVC
UNI
Ethernet Private Tree example CE

16. Service Attributes
Arie Goldberg

17. 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

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
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

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  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

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
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

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 Ralph Santitoro Brian Bortz Arie Goldberg Paul Indoo
CEO
Resolute Networks
Ralph Santitoro
Director of Carrier Ethernet Solutions
Turin Networks
MEF Director & Co-chair Security Group
Arie Goldberg
CEO and Chief Technologist
Omnitron Systems
MEF Director and Secretary
Paul Indoo
Product Marketing Manager
Nortel

26. For more information regarding joining the MEF:
For in-depth presentations of Carrier Ethernet for business, Ethernet services, technical overview, certification program etc., visit:
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