11

MEF Reference Presentation

November 2011

Carrier Ethernet Services

2

MEF Reference Presentations

• Intention – These MEF reference presentations are intended to

give general overviews of the MEF work and have been approved by the MEF Marketing Committee

– Further details on the topic are to be found in related specifications, technical overviews, white papers in the MEF public site Information Center:http://metroethernetforum.org/InformationCenter

• Notice © The Metro Ethernet Forum 2011. Any reproduction of this document, or any portion thereof, shall contain the following statement: "Reproduced with permission of the Metro Ethernet Forum." No user of this document is authorized to modify any of the information contained herein.

3

Purpose

• Carrier Ethernet Services Overview – This presentation defines the MEF Ethernet Services that

represent the principal attribute of a Carrier Ethernet Network– This presentation is intended to give a simple overview as a

grounding for all other MEF documents

4

Topics

• What is Carrier Ethernet?– Architecture– Carrier Ethernet Terminology– The UNI, NNI, MEN, Ethernet Virtual Connections (EVCs)

• EVCs and Services • E-Line Services

– Ethernet Private Line, Ethernet Virtual Private Line• E-LAN Services

– Multipoint Services• E-Tree Services• Service Attributes

– Service Parameters, Bandwidth Profiles, Traffic Management• Circuit Emulation Services• Carrier Ethernet Architecture for Cable• Carrier Ethernet Class of Service • Service Examples

March 2007

5

Carrier Ethernet Defined

The MEF has defined Carrier Ethernet asA ubiquitous, standardized,carrier-class Service and Network defined by five attributes that distinguish it from familiar LAN based Ethernet

6

What is Carrier Ethernet?

• Question:– “Is it a service, a network, or a technology?”

• Answer for an end-user– It’s a Service defined by 5 attributes

• Answer for a service provider – It’s a set of certified network elements that

connect to transport the services offered to the customer

– It’s a platform for value added services– A standardized service for all users

7

Carrier Ethernet Architecture

EVC: Ethernet Virtual ConnectionUNI: User Network Interface. the physical demarcation point between the

responsibility of the Service Provider and the responsibility of the Subscriber UNI-C: UNI customer-side processesUNI-N UNI network-side processesENNI: External Network to Network Interface; the physical demarcation point

between the responsibility of the two Service ProvidersENNI-N: ENNI Processes

Ethernet Services (“Eth”) Layer Terminology

Service Provider 1

Carrier Ethernet NetworkCE

UNI

End User Subscriber Site

ETHUNI-C

ETHUNI-N

ETHUNI-N

ETHENNI-N

ETHUNI-C

UNI

CE

ENNIService Provider 2

ETHENNI-N

End User Subscriber

Site

EVC

Carrier Ethernet Network

“In a Carrier Ethernet network, data is transported across Point-to-Point and Multipoint-to-Multipoint Ethernet Virtual Connections (EVCs) according to the attributes and definitions of the E-Line, E-LAN and E-Tree services”

8

Carrier Ethernet Architecture

Dat

a Pl

ane

Cont

rol P

lane

Man

agem

ent P

lane

Transport Services Layer (e.g., IEEE 802.1, SONET/SDH, MPLS)

Ethernet Services Layer (Ethernet Service PDU)

Application Services Layer (e.g., IP, MPLS, PDH, etc.) APP Layer

ETH Layer

TRAN Layer

Data moves from UNI to UNI across "the network" with a layered architecture. When traffic moves between ETH domains is does so at the TRAN layer. This allows Carrier Ethernet traffic to be agnostic to the networks that it traverses.

9

MEF Carrier Ethernet Terminology

• The User Network Interface (UNI)– The UNI is always provided by the Service Provider– The UNI in a Carrier Ethernet Network is a physical Ethernet Interface at operating

speeds 10Mbs, 100Mbps, 1Gbps or 10Gbps

• Ethernet Virtual Connection (EVC)– Service container– Connects two or more subscriber sites (UNI’s)– An association of two or more UNIs – Prevents data transfer between sites that are not part of the same

EVC– Three types of EVCs

• Point-to-Point• Multipoint-to-Multipoint• Rooted Multipoint

– Can be bundled or multiplexed on the same UNI– Defined in MEF 10.2 technical specification

10

Carrier Ethernet Terminology

• UNI Type I– A UNI compliant with MEF 13– Manually Configurable

• UNI Type II– Supports E-Tree– Support service OAM, link protection – Automatically Configurable via E-LMI – Manageable via OAM

• Network to Network Interface (NNI)– Network to Network Interface between distinct MEN operated by

one or more carriers– An active project of the MEF

• Metro Ethernet Network (MEN)– An Ethernet transport network connecting user end-points

(Expanded to Access and Global networks in addition to the original Metro Network meaning)

11

Features• Low latency• Predictable QoS• 1 mbps to 10 gbps• Standardized• Reliable• Manageable• Optimal Line Usage• Low cost

Carrier Ethernet Service Types

E-LAN Service Type for• Multipoint L2 VPNs• Transparent LAN Service• Multicast networks

E-Tree Service Type for• Rooted multi-point L2 VPNs• Broadcast networks• Telemetry networks

UNI

UNI

UNI

UNIMulti-point to Multi-point EVC

UNI UNI

UNIPoint-to-Point EVC

UNI

E-Line Service Type for• Virtual Private Lines (EVPL)• Ethernet Private Lines (EPL)• Ethernet Internet Access

E- Access Service Type* for• Wholesale Access Services• Access EPL• Access EVPL

ENNIUNI

Point-to-Point EVC

UNI

Rooted Multipoint EVC

Carrier Ethernet Access Network

Carrier Ethernet Service Provider

* Technical Specification due for completion 1/12. All specifications subject to change until approved.

E-Access

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

Point-to-Point EVCs

Carrier Ethernet Network

CE UNI

CE

UNI

CE

UNI

ISPPOP

UNI

Storage Service Provider

Internet

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 & spoke” connectivity via Service Multiplexed UNI at hub site– Similar to Frame Relay or Private Line hub and spoke deployments

Service Multiplexed

Ethernet UNI

Point-to-Point EVCs

Carrier Ethernet Network

CE

UNI

CE

UNI

CE

UNI

14

Services Using E-LAN Service Type

• EP-LAN: Each UNI dedicated to the EP-LAN service. Example use is Transparent LAN

• EVP-LAN: Service Multiplexing allowed at each UNI. Example use is Internet access and corporate VPN via one UNI

Ethernet Private LAN example

Multipoint-to-Multipoint EVC

Carrier Ethernet Network

CE

UNI

CE

CE

UNI

UNI

Ethernet Virtual Private LANexample

Multipoint-to-Multipoint EVC

Carrier Ethernet Network

CEUNI

CE

CE

UNI

UNI

Point-to-Point EVC(EVPL)

UNI

CE

ISP POP

Internet

15

Services Using E-Tree Service Type

Carrier Ethernet Network

CE

UNI

UNI

CE

CE

Leaf

Leaf

UNICE

Leaf

Rooted-Multipoint EVC

Ethernet Private Tree example

UNI

Root

EP-Tree and EVP-Tree: Both allow root - root and root - leaf communication but not leaf - leaf communication.

• EP-Tree requires dedication of the UNIs to the single EP-Tree service

• EVP-Tree allows each UNI to be support multiple simultaneous services at the cost of more complex configuration that EP-Tree

Root

Ethernet Virtual Private Tree example

CE

CE

CEUNI

UNI

UNI

Rooted-MultipointEVC Multipoint to

Multipoint EVC

UNI

16

Delivered Over Wide Variety of Access MediaCarrier Ethernet provides consistent services delivered to users connected over the widest variety of access networks

… and across a wide variety of backhaul transport technologies

Bonded T1/E1

Ethernet

MSO/ Cable

Ethernet User to Network Interface (UNI)Ethernet Network Network Interface (NNI)

COAXDirect Fiber

WDM Fiber

Bonded Copper

Service Provider 2

TDM

Ethernet

Ethernet EthernetEthernet

Ethernet

Ethernet

Ethernet

Direct Fiber100Mbps/1Gbps/10 Gbps

SONET/ SDH

PON

Fiber

Ethernet

Service Provider 1

Ethernet

Ethernet

WiMax

Ethernet

Packet Wireless

DS3/E3

17

Service Attributes

• EVC Service Attributes (Defined in MEF 10.2)– Fundamentals of enabling the value of Carrier Ethernet:

• Virtual Connections• Bandwidth profiles• Class of Service Identification

– Service Performance• Frame Delay (Latency)• Inter Frame Delay Variation • Frame Loss Ratio• Availability

• UNI Service Attributes– Details regarding the UNI including:

• Physical interface capabilities• Service multiplexing capability• C-VLAN bundling capability

18

Bandwidth Profiles & Traffic Management (1)

Bandwidth Profiles per EVC & per Class of Service Governed by 6 Parameters– CIR (Committed Information Rate)

• CIR defines assured bandwidth• Assured via bandwidth reservation, traffic engineering

– EIR (Excess Information Rate)• EIR bandwidth is considered ‘excess’• EIR improves the network’s Goodput • Traffic dropped at congestion points in the network

– CBS/EBS (Committed/Excess Burst Size in bytes)• Higher burst size results in improved performance

Color Mode (“Color Aware” or “Color Blind”) – When set as “Color Aware” governs discard eligibility

• Marking typically done at ingress• Green – Forwarded frames – CIR conforming traffic• Yellow – Discard Eligible frames – Over CIR , within EIR• Red – Discarded frames – Exceeds EIR

Coupling Flag (set to 1 or 0) governs which frames are classed as yellow

EVC-1CIR

EIREVC-2

CIR

EIR

EVC-3

CIR

EIR

19

Bandwidth Profiles & Traffic Management (2)• Bandwidth Profiles can divide bandwidth per EVC over a single UNI

– Multiple services over same port (UNI)– CoS markings enable the network to determine the network QoS to provide

UNI

EVC 1

EVC 2

EVC 3

Ingress Bandwidth Profile Per Ingress UNI

Port-based

UNI

EVC 1

EVC 2

EVC 3

Ingress Bandwidth Profile Per EVC1

Ingress Bandwidth Profile Per EVC2

Ingress Bandwidth Profile Per EVC3

Port/VLAN-based

UNI EVC 1

CE-VLAN CoS 6 Ingress Bandwidth Profile Per CoS ID 6

CE-VLAN CoS 4

CE-VLAN CoS 2

Ingress Bandwidth Profile Per CoS ID 4

Ingress Bandwidth Profile Per CoS ID 2

EVC 2

Port/VLAN/CoS-based

20

Further Technical information

MEF 9Abstract Test Suite for Ethernet

Services at the UNI

MEF 6.1Metro Ethernet Services

Definitions Phase 2

MEF 10.2Ethernet Services Attributes

Phase 2

MEF 14Abstract Test Suite for Traffic

Management phase 1

MEF Certification

Carrier Ethernet services attributes and definitions

Carrier Ethernet Services Certification Test Suites

Key MEF Carrier Ethernet Services Specifications

Other important MEF technical specifications– MEF 20 UNI Type 2

Implementation Agreement– MEF 23 Class of Service

Implementation Agreement – MEF 22 Mobile Backhaul

Implementation Agreement

MEF 26External Network Network

Interface (ENNI) Phase 1

For information on MEF Technical Specifications visit metroethernetforum.org

21

TDM Circuits(e.g. T1/E1 Lines)

Circuit Emulation Services over Carrier Ethernet

• Enables TDM Services to be transported across Carrier Ethernet network, re-creating the TDM circuit at the far end– Runs on a standard Ethernet Line Service

(E-Line)Carrier Ethernet Network

TDM Circuits(e.g. T1/E1 Lines) Circuit Emulated

TDM Traffic

22

Carrier Ethernet Architecture for Cable Operators

Headend Hub

EQAM

CMTS

Optical Metro Ring Network

VideoServer

D2A

AdInsertion

E-LAN

E-LineBusiness Services over Fiber (GigE)

Voice gateway

Voice/VideoTelephony

Digital TV, VOD,

Interactive TV, Gaming

Managed BusinessApplications

InternetAccess

AnalogTV Feeds

A2D

HubUNIUNI

CECE

E-NNIE-NNI

Another MSO or carrierNetwork

EoDOCSIS(future)

EoT1/DS3

PON

Greenfield Residential & Business Services

EoSONET/SDH

CECEUNIUNI

WDM

UNIUNIHome RunFiber

EoCoaxEoHFC

SwitchedFiber

Business Park

Business Services

Node

E-LineE-LAN

CECE

UNIUNI

CECE

WirelessPlant

ExtensionLeasedT1/DS3

CECEUNIUNI

2323

New Technical Work

24

Carrier Ethernet Class of Service

Performance Objectives per CoS ,etc.

Mobile Backhaul Phase 1

New definitions for implementing CE in 4G/LTE

MEF Technical Update

Two New Specifications (Oct 2011)• MEF 32 OVC Service Level Specifications• MEF 26.0.2 Protection Across External InterfaceStandards

E-Access Service Type

Standardizing buying and selling of wholesale CE

Class of Service Phase 2

Performance Objectives per CoS ,etc.

Six MEF new specs formalized at Jan ‘12 meeting include three related projects:

Mobile Backhaul Phase 2

New definitions for implementing CE in 4G/LTE

Covered elsewhere

2525

MEF 23 Original CoS Specification

Carrier Ethernet Class of Service

26

Background: CoS Phase I

MEF 23 CoS Implementation Agreement - Phase 1• Specifies a 3 CoS Model and allows for subsets and extensions

• Provides Guidance for interconnections of Carrier Ethernet networks implementing Class of Service Models

• PCP/DSCP* values, as part of the Class of Service ID (CoS ID)

– Recommended for the UNI while PCP values are mandatory at the ENNI to facilitate interconnection.

– PCP/DSCP mandatory values are subset of the total value

Guidance on Bandwidth Profile constraints – Includes consideration for frame disposition (i.e., “Color”)

Performance Attributes– Introduced based on FD, IFDV/FDV and FLR – not quantified

* Note: PCP: Priority Code Point : 3 bit Priority in IEEE 802.3 datagram frames.DSCP: 6-bit Differentiated Services Code Point in IP frames

27

Mapping the CoS Model at an ENNI

* Each CoS Label associated with particular CPO

CoS Rock

CoS Paper

CoS Scissors

CoS Plus

CoS Square

CoS Heart

CoS Coal

CoSMapping?

CoS Rock

CoS Paper

CoS Scissors

CoS Plus

CoS Square

CoS Heart

CoS Coal

CoS Medium*

CoS High*

CoS Low*

Without MEF CoS IA: MENs requires bilateral agreements at each ENNI. Customers may not get consistent QoS treatment

With MEF CoS IA: MENs remark frames on egress of an ENNI to align based on standardized MEF CoS indications.

Service Provider 1

Carrier Ethernet NetworkCE

UNI UNI

CE

ENNIService Provider 2

Carrier Ethernet Network

Common CoS lexicon between the Service Providers on either side of the standardized Ethernet interconnect facilitates CoS alignment:• Providers are still free to implement a subset or superset of MEF CoS definitions• MEF 23 specifies interoperability between CE Networks using up to 3 MEF CoS

2828

Carrier Ethernet Class of Service – Phase 2

Introducing MEF 23.1

29

Class of Service Session Phase II

• Intention– Simplify and standardize the way Carrier Ethernet services are

implemented to support a wide variety of applications – Provide a rich set of definitions for performance objectives

deployed in local, regional, national and worldwide locations– Provide necessary service mapping at the connection points

between providers • Impact for providers

– cost savings, new revenue opportunities with shorter time to turn up

• MEF 23.1 adds functionality– Classes of Service, quantified QoS measurement, new attributes

and definitions, common terminology

30

New Performance Tiers:• Metro (250km), • Regional (1,200km), • Continental (7,000km), • Global/Intercontinental (27,500 km)

MEF Class of Service Extensions (MEF 23.1)

• Implementation Guidance for the Industry– Enables performance improvement and reduced costs of Mobile

Backhaul & key business applications– Defines Class of Service Performance Objectives (CPOs) by

application type for Mobile Backhaul networks and end-to-end apps

• CPOs include all relevant metrics by type and distance

Applies to UNI-UNI, ENNI-UNI, ENNI-ENNI virtual connections

31

MEF Class of Service Extensions

• Implementation and Measurement– Extends existing Bandwidth Profile and Traffic management – Quantifies Delay, Delay Variation, Frame Loss Ratio, availability etc.– Adds Mean Frame Delay and Frame Delay Range– Defines CPOs for distance related attributes as performance tiers– Used by new Mobile Backhaul Project

Example of bandwidth profiles for typical Mobile Backhaul with 4 classes of service.

Each CoS has one way performance metrics objectives

UNIEVC 1

CoS 4 10 Mbps CIR for VoIP

CoS 220Mbps CIR for VPN data traffic

68Mbps for Internet AccessEVC 2

100Mbps UNI (port)

CoS 62 Mbps CIR for control

Port/VLAN/CoS-based

32

Class of Service Phase 2 (MEF 23.1)

• Add new performance attributes for Mean Delay and Delay Range introduced in MEF 10.2

• Quantified CoS performance objectives and associated parameters for point to point EVCs and OVCs

• Bandwidth profile parameter constraints

MEN A MEN B

MEN A

OVC OVC

EVC

UNI

UNI UNI

UNIENNI

Quantitative Delay, Delay Variation,Loss objectives

Quantitative Delay, Delay Variation,Loss objectives

Quantitative Delay, Delay Variation,Loss objectives

33

Delivering SLAs Specify the service to be provided

• Definition of the service at the UNI (MEF 20, 6.1)• Key SLA/SLS aspects

• CoS Identification and Bandwidth profile – MEF 10.2• OVC SLA Amendment to ENNI spec – 26.0.3• CoS Identification values & Performance Objectives– MEF

23.1 (CoS IA Phase 2)Construct end-to-end EVC

• New MEF 23.1 enhancements may be applied to an EVC or segments of an EVC, such as an OVC for point-to-point

• Integrate OVCs joining UNI to ENNI, ENNI to ENNI, ENNI to UNI• Map EVC attributes to OVC attributes

Turn up and monitor the new service• Measuring – SOAM Performance Monitoring (in progress)

34

Three CoS Model Using PCP or DSCP per Frame

DRAFT

CoS Label

CoS and Color Identifiers1

C-Tag PCP PHB (DSCP) S-Tag PCP Without DEI Supported

S-Tag PCP With DEI

SupportedColor Green

ColorYellow

Color Green

ColorYellow

ColorGreen

ColorYellow

H 5N/S

in Phase 2

EF (46) N/Sin Phase 2 5 N/S

in Phase 2 5

M 3 2 AF31 (26) AF32 (28) or AF33 (30) 3 2 3

L 1 0 AF11 (10) AF12 (12), AF13 (14) or Default (0) 1 0 1

1 Full CoS Identifier includes EVC or OVC End Point. Table specifies only the PCP or DSCP values to be used with EVC or OVC End Point to specify a CoS ID. EVC and OVC End Point indication is not constrained by CoS IA. EF: Expedited Forwarding. AF Assured Forwarding

35

Example: Full C-Tag PCP Mappings

MEF CoS Combination Supported on

EVC

PCP Mapping per Class of Service - Color Blind Mode

H M L

{H + M + L} 5 2-4, 6, 7 0, 1

{H + M} 5 0-4, 6, 7 N/A

{H + L} 5 N/A 0-4, 6, 7

{M + L} N/A 2-7 0, 1

Example of full mappings of PCP at a UNI for multi-CoS EVCs that support all 3 MEF CoS Labels and no additional CoS Names.

• This may be a common approach in handling low latency traffic based on a PCP marking – particularly when using (for instance) IP Routers.

Example PCP Mapping for Multi-CoS EVC Supporting Only Standard Classes of Service at UNI – “Router-Application-Friendly” mapping

36

Parameters for Performance Metrics

MEF 23.1 Table 5: CoS Label High, Medium and Low (H, M and L) Parameter Values

DRAFT

Performance Metric

Parameter Name

Parameter Values for CoS Label H

Parameter Values for CoS Label M

Parameter Values for CoS Label L

FDPercentile (Pd) ³ 99.9th ³ 99th ³ 95th

Time Interval (T) £ Month £ Month £ MonthMFD Time Interval (T) £ Month £ Month £ Month

IFDV

Percentile (Pv) ³ 99.9th ³ 99th or N/S1 N/S

Time Interval (T) £ Month £ Month or N/S1 N/SPair Interval (Dt) ³ 1sec ³ 1sec or N/S1 N/S

FDRPercentile (Pr) ³ 99.9th ³ 99th or N/S1 N/S

Time Interval (T) £ Month £ Month or N/S1 N/SFLR Time Interval (T) £ Month £ Month £ Month

Availability TBD TBD TBD TBDHigh Loss

IntervalTBD TBD TBD TBD

Consecutive High Loss Interval

TBD TBD TBD TBD

37

Performance Tier 1 CPOs

MEF 23.1 Table 6: Performance Tier 1 (Metro) CoS Performance ObjectivesDRAFT

PerformanceMetric

CoS Label H CoS Label M CoS Label L1

ApplicabilityPt-Pt MultiPoint Pt-Pt MultiPoin

t Pt-Pt MultiPoint

FD (ms) £ 10 TBD £ 20 TBD £ 37 TBD At least one of either FD or MFD required

MFD (ms) £ 7 TBD £ 13 TBD £ 28 TBD

IFDV (ms) £ 3 TBD £ 8 or N/S

2 TBD N/S TBD At least one of either FDR or IFDV

required FDR (ms) 5£ TBD

£ 10 or N/S 2 TBD N/S TBD

FLR (percent) £ .01% i.e.

10-4 TBD £ .01% i.e.

10-4 TBD £ .1% i.e.

10-3 TBD

Availability TBD TBD TBD TBD TBD TBD

High Loss Interval TBD TBD TBD TBD TBD TBD

Consecutive High Loss Interval

TBD TBD TBD TBD TBD TBD

38

Performance Tier 2 CPOs

MEF 23.1 Table 7: Performance Tier 2 (Regional) CoS Performance Objectives

DRAFT

PerformanceMetric

CoS Label H CoS Label M CoS Label L1

ApplicabilityPt-Pt

MultiPoint Pt-Pt

MultiPoint Pt-Pt

MultiPoint

FD (ms) £ 25 TBD £ 75 TBD £ 125 TBD At least one of either FD or MFD

required MFD (ms) £ 18 TBD £ 30 TBD £ 50 TBD

IFDV (ms) £ 8 TBD £ 40 or N/S 2 TBD N/S TBD At least one of

either FDR or IFDV required FDR (ms) £ 10 TBD

£ 50 or N/S 2 TBD N/S TBD

FLR (percent) £ .01%

i.e., 10-4 TBD£ .01% i.e., 10-4 TBD

£ .1% i.e., 10-3 TBD

Availability TBD TBD TBD TBD TBD TBDHigh Loss

IntervalTBD TBD TBD TBD TBD TBD

Consecutive High Loss Interval

TBD TBD TBD TBD TBD TBD

39

Per Application CPOs

• Covers the following applicationsVoIP DataVideo Conferencing DataVoIP and Video conference SignalingIPTV Data Plane, IPTV Control PlaneStreaming MediaInteractive GamingCircuit EmulationTelepresence: includes: Remote Surgery (Video)Financial/TradingCCTVDatabase (Hot Standby), (WAN Replication), (Client/Server)T.38 Fax SANs (Synchronous and Asynchronous Replication)Network Attached StorageText and Graphics TerminalsPoint of Sale TransactionsMobile Backhaul H, M, LBest Effort Includes: Email, Store/Forward Fax, WAFS, Web Browsing, File

Transfer (including hi-res image file transfer), E-Commerce

40

Per Application CPOs (Summary)Application FD MFD FLR FDR IFDV

VoIP Data 125 ms pref375 ms limitPd = 0.999

100 ms pref350 ms limit

3e-2 50 ms Pr = 0.999

40 msPv = 0.999

Video Conferencing Data 125 ms pref375 ms limit Pd = 0.999

100 ms pref350 ms limit

1e-2 50 ms Pr = 0.999

40 ms Pv = 0.999

VoIP and Videoconf Signaling Not specified 250 ms pref 1e-3 Not specified Not specifiedIPTV Data Plane 125 ms

Pd = 0.999100 ms 1e-3 50 ms

Pr = 0.99940 ms Pv = 0.999

IPTV Control Plane Not specified 75 ms 1e-3 Not specified Not specifiedStreaming Media Not specified Not specified 1e-2 2 s 1.5 s

Pv = 0.99Interactive Gaming 50 ms 40 ms 1e-3 10 ms 8 msCircuit Emulation 25 ms

Pd = .99999920 ms 1e-6 15 ms

Pr = .99910 ms. Pv = .999, Δt = 900s, T = 3600s

Telepresence, includes: Remote Surgery (Video)

120 msPd = 0.999

110 ms 2.5e-4 40 msPr = 0.999

10 ms

Financial/Trading Unknown 2 ms 1e-5 Unknown UnknownCCTV 150 ms (MPEG-4)

200 ms (MJPEG)Pd=0.999

Not specified 1e-2 50 msPr = 0.999

Not specified

Database (Hot Standby) 5 ms Not specified 1e-5 Unknown UnknownDatabase (WAN Replication) 50 ms Not specified 1e-5 Unknown UnknownDatabase (Client/Server) Not specified 1 s 1e-3 Not specified Not specifiedT.38 Fax 400 ms,

Pd = 0.999350 ms 3e-2 50 ms

Pr = 0.99940 msPv = 0.999

SANs (Synchronous Replication) 5 ms 3.75 ms 1e-4 1.25 ms 1 ms SANs (Asynchronous Replication)* 40 ms 30 ms 1e-4 10 ms 8 msNetwork Attached Storage Not specified 1 s 1e-3 Not specified Not specifiedText and Graphics Terminals Not specified 200 ms 1e-3 Not specified Not specifiedPoint of Sale Transactions 2 s 1 s 1e-3 Not specified Not specifiedBest Effort, includes: Email, Store/Forward Fax, WAFS, Web Browsing,

File Transfer (including hi-res image file transfer), E-CommerceNot specified Not specified Not

specifiedNot specified Not specified

Mobile Backhaul H 10 ms 7 ms 1e-4 5 ms 3 msMobile Backhaul M 20 ms 13 ms 1e-4 10 ms 8 msMobile Backhaul L 37 ms 28 ms 1e-3 Not specified Not specified

41

Benefits of CoS Alignment, Standardization

Summary• An important new specification that will accelerate

deployment• Customers can easily receive the same service

between all points in the world• Carriers can interconnect with other carriers

automatically without engineering• Services can rapidly roll out worldwide• Service calls diminish when service performance is

universally predictable• Carrier Ethernet applications are tuned to work better

because the underlying service is better understood

42

Example Uses of Services

43

Examples for EPL

HQ

Branch

Branch

EPL

EPL

• Simple configuration

• “The port to the Internet it is un-trusted”

• “The port to the branches it is trusted”

• No coordination with MEN SP for HQ to branch subnets

• Fractional bandwidth (Bandwidth Profile) to minimize monthly service charges

Internet

Firewall

44

Example Use of EVPL

ISPCustomer 1

Turbo 2000Internet Access, Inc.

ISPCustomer 2

ISPCustomer 3

Service Multiplexing

VLAN 2000 BlueVLAN 2000 Yellow

VLAN 2000 Green

VLAN 178 BlueVLAN 179 YellowVLAN 180 Green

• Efficient use of ISP router ports

• Easy configuration at ISP customer sites

• This port and VLAN 2000 (or even untagged) to Turbo Internet

45

Example Use of EVP-LAN

Credit Check, Inc.

Instant Loans, Inc.

Walk In Drive Out Used Cars, Inc.

• Redundant points of access for critical availability higher layer service

• Efficient use of DDC’s router ports

• IL and Used Cars cannot see each other’s traffic

Service Multiplexing

A

BD

EVC1

C

EVC2

46

Example Use of EP-Tree

A

B

C

D

EVC1

Internet for theSmall Guy, Inc.

Small Guy Travel

Root

Leaves

Diminutive GuyGaming Center

Tiny Guy Coffee

• Efficient use of ISG router port

• One subnet to configure on ISG router

• Simple configuration for the little guys

• Small, Tiny, and Diminutive Guys can’t see each other’s traffic

• Second Root would provide redundant internet access

• Some limits on what routing protocols can be used

47

Example Use of EVP-Tree

A

B

C

D

EVC1

Internet for theSmall Guy, Inc.

Small Guy Travel

Roots

Leaves

Diminutive GuyGaming Center

Tiny Guy Coffee

• Efficient use of ISG router port

• Efficient distribution of elevator video

• Small, Tiny, and Diminutive Guys can’t see each other’s traffic, EV Franchises can’t see each other’s traffic

• Second Root would provide redundant internet access

• Some limits on what routing protocols can be used

Elevator Video Franchises

LeavesService Multiplexing

48

Carrier Ethernet in Action

Application EVPL Profiles, Sample CoS ObjectivesCarrier Ethernet Service Provider

Committed Information

RatePriority

Excess Information

Rate

10 mbps0 0

100 mbps1 0

50 mbps2 0

40 mbps3 0

04 500 mbps

Metro Fiber Ethernet Virtual Private Line Services

VoIP calls

Interactive business and consumer video programming

Telepresence

Streamed HD live content

Content distributed. Development and non-real time delivery

UNICOMPANY HQ

Frame Delay

5ms

5ms

25ms

N/A

N/A

Frame Loss Ratio

0.1%

0.01%

0.1%

0.01%

1%

Implementation Guidance• The above bandwidth profiles and related Performance metrics are a small set of those available. • New MEF Specifications recommend performance objectives based on both distance and application types

Impact for Providers and Enterprises• Ability to tune Carrier Ethernet services to exactly match wide variety of changing applications requirements

creates a highly responsive network that reacts well to bursts of high priority data.

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MEF Reference Presentations

MEF Reference Presentations Covering the Principal Work of the MEF

Overview presentation of the MEF.

This presentation gives basic and most up-to-date information about the work of the MEF. It also introduces the definitions, scope and impact of Carrier Ethernet, the MEF Certification programs and describes the benefits of joining the MEF.

Overview presentation of the Technical Work of the MEF

Includes a summary of the specifications of the MEF, structure of the technical committee, work in progress and relationships with other Industry Standards bodies. For PowerPoint overviews of individual specifications: click here

Carrier Ethernet Services Overview

This presentation defines the MEF Ethernet Services that represent the principal attribute of a Carrier Ethernet Network

Carrier Ethernet User-Network Interface This presentation discusses the market impact of MEF 20: UNI Type 2 Implementation agreement

Carrier Ethernet Access Technology Overview

This presentation describes how the MEF specifications bring Carrier Ethernet services to the world's Access networks (with examples of Active Ethernet (Direct Fiber), WDM Fiber, MSO Networks(COAX and Direct Fiber), Bonded Copper, PON Fiber and TDM (Bonded T1/E1, DS3/E3))

Carrier Ethernet Interconnect Program.

This is the latest presentation from the Carrier Ethernet Interconnect Working Group which acts as a framework for all presentations given on this topic.

Carrier Ethernet OAM & Management Overview

This presentation describes the management framework and the OAM elements for fault and performance management expressed in terms of the life cycle of a Carrier Ethernet circuit

Carrier Ethernet for Mobile Backhaul

A comprehensive marketing and technical overview of the MEF's initiative on Mobile Backhaul that has lead to the adoption of Carrier Ethernet as the technology of choice for 3G and 4G backhaul networks

Carrier Ethernet Business Services A comprehensive presentation aimed at business users

The MEF Certification ProgramsA presentation of the MEFs three certification programs: Equipment, Services and Professionals. These programs have been a cornerstone of the success of Carrier Ethernet and its deployment in more than 100 countries around the world.

Presentations may be found at http://metroethernetforum.org/Presentations

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