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Slide1
MEF Reference PresentationNovember 2011
Carrier Ethernet Services
Slide2MEF 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.
Slide3Purpose
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
Slide4Topics
What is Carrier Ethernet?
Architecture
Carrier Ethernet TerminologyThe UNI, NNI, MEN, Ethernet Virtual Connections (EVCs)EVCs and Services E-Line ServicesEthernet Private Line, Ethernet Virtual Private LineE-LAN ServicesMultipoint ServicesE-Tree ServicesService AttributesService Parameters, Bandwidth Profiles, Traffic ManagementCircuit Emulation ServicesCarrier Ethernet Architecture for CableCarrier Ethernet Class of Service Service Examples
March 2007
Slide5Carrier Ethernet Defined
The MEF has defined Carrier Ethernet as
A ubiquitous, standardized
,carrier-class Service and Network defined by five attributes that distinguish it from familiar LAN based Ethernet
Slide6What 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
Slide7Carrier 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 Network
CE
UNI
End User Subscriber
Site
ETH
UNI-C
ETHUNI-N
ETHUNI-N
ETHENNI-N
ETHUNI-C
UNI
CE
ENNI
Service Provider 2
ETH
ENNI-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”
Slide8Carrier Ethernet Architecture
Data Plane
Control Plane
Management Plane
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.
Slide9MEF 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
Slide10Carrier 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)
Slide11FeaturesLow latencyPredictable QoS1 mbps to 10 gbpsStandardizedReliableManageableOptimal Line UsageLow cost
Carrier Ethernet Service Types
E-LAN Service Type for
Multipoint L2
VPNs
Transparent LAN Service
Multicast networks
E-Tree Service Type forRooted multi-point L2 VPNsBroadcast networksTelemetry networks
UNI
UNI
UNI
UNI
Multi-point to
Multi-point EVC
UNI
UNI
UNI
Point-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
ENNI
UNI
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
Slide12Services 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 connectivityTypically 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
ISP
POP
UNI
Storage Service Provider
Internet
Slide13Services 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 deployme
nts
Service Multiplexed Ethernet UNI
Point-to-Point EVCs
Carrier Ethernet Network
CE
UNI
CE
UNI
CE
UNI
Slide14Services 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 LAN
example
Multipoint-to-Multipoint EVC
Carrier Ethernet Network
CE
UNI
CE
CE
UNI
UNI
Point-to-Point EVC
(EVPL)
UNI
CE
ISP POP
Internet
Slide15Services Using E-Tree Service Type
Carrier Ethernet Network
CE
UNI
UNI
CE
CE
Leaf
Leaf
UNI
CE
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
CE
UNI
UNI
UNI
Rooted-Multipoint
EVC
Multipoint to
Multipoint EVC
UNI
Slide16Delivered Over Wide Variety of Access Media
Carrier 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)
COAX
Direct Fiber
WDM Fiber
Bonded Copper
Service Provider 2
TDM
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Direct
Fiber
100Mbps/1Gbps/10 Gbps
SONET/ SDH
PON
Fiber
Ethernet
Service Provider
1
Ethernet
Ethernet
WiMax
Ethernet
Packet Wireless
DS3/E3
Slide17Service 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
Slide18Bandwidth Profiles & Traffic Management (1)
Bandwidth Profiles per EVC & per Class of Service Governed by 6 ParametersCIR (Committed Information Rate)CIR defines assured bandwidthAssured via bandwidth reservation, traffic engineeringEIR (Excess Information Rate)EIR bandwidth is considered ‘excess’EIR improves the network’s Goodput Traffic dropped at congestion points in the networkCBS/EBS (Committed/Excess Burst Size in bytes)Higher burst size results in improved performanceColor Mode (“Color Aware” or “Color Blind”) When set as “Color Aware” governs discard eligibilityMarking typically done at ingressGreen – Forwarded frames – CIR conforming trafficYellow – Discard Eligible frames – Over CIR , within EIRRed – Discarded frames – Exceeds EIRCoupling Flag (set to 1 or 0) governs which frames are classed as yellow
EVC-1
CIR
EIR
EVC-2
CIR
EIR
EVC-3
CIR
EIR
Total Physical Bandwidth
at the UNI
Slide19Bandwidth Profiles & Traffic Management (2)
Bandwidth Profiles can divide bandwidth per EVC over a single UNIMultiple 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 EVC
1
Ingress Bandwidth Profile Per EVC
2
Ingress Bandwidth Profile Per EVC
3
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
Slide20Further Technical information
MEF 9
Abstract Test Suite for Ethernet Services at the UNI
MEF 6.1
Metro Ethernet Services Definitions Phase 2
MEF 10.2
Ethernet Services Attributes Phase 2
MEF 14
Abstract 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 specificationsMEF 20 UNI Type 2 Implementation AgreementMEF 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
Slide21TDM 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 endRuns on a standard Ethernet Line Service (E-Line)
Carrier Ethernet Network
TDM Circuits
(e.g. T1/E1 Lines)
Circuit Emulated
TDM Traffic
Slide22Carrier Ethernet Architecture for Cable Operators
Headend
Hub
EQAM
CMTS
Optical Metro Ring Network
Video
Server
D2A
Ad
Insertion
E-LAN
E-Line
Business Services
over Fiber (GigE)
Voice gateway
Voice/Video
Telephony
Digital TV, VOD, Interactive TV, Gaming
Managed Business
Applications
Internet
Access
Analog
TV Feeds
A2D
Hub
UNI
CE
E-NNI
Another MSO or carrier
Network
EoDOCSIS
(future)
EoT1/DS3
PON
Greenfield Residential & Business Services
EoSONET
/SDH
CE
UNI
WDM
UNI
Home Run
Fiber
EoCoax
EoHFC
Switched
Fiber
Business
Park
Business
Services
Node
E-Line
E-LAN
CE
UNI
CE
Wireless
Plant
Extension
Leased
T1/DS3
CE
UNI
Slide23New Technical Work
Slide24Carrier 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 Interface
Standards
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
Slide25MEF 23 Original CoS Specification
Carrier Ethernet Class of Service
Slide26Background: CoS Phase I
MEF 23 CoS Implementation Agreement - Phase 1Specifies a 3 CoS Model and allows for subsets and extensionsProvides Guidance for interconnections of Carrier Ethernet networks implementing Class of Service ModelsPCP/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 valueGuidance on Bandwidth Profile constraints Includes consideration for frame disposition (i.e., “Color”) Performance AttributesIntroduced 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
Slide27Mapping 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
CoS
Mapping?
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 Network
CE
UNI
UNI
CE
ENNI
Service 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
Slide28Carrier Ethernet Class of Service – Phase 2
Introducing MEF 23.1
Slide29Class 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
Slide30New 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 IndustryEnables performance improvement and reduced costs of Mobile Backhaul & key business applicationsDefines Class of Service Performance Objectives (CPOs) by application type for Mobile Backhaul networks and end-to-end appsCPOs include all relevant metrics by type and distance
Applies to UNI-UNI, ENNI-UNI, ENNI-ENNI virtual connections
Slide31MEF Class of Service Extensions
Implementation and MeasurementExtends existing Bandwidth Profile and Traffic management Quantifies Delay, Delay Variation, Frame Loss Ratio, availability etc.Adds Mean Frame Delay and Frame Delay RangeDefines CPOs for distance related attributes as performance tiersUsed 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
UNI
EVC
1
CoS
4
10 Mbps
CIR for VoIP
CoS 2
20Mbps
CIR for VPN data traffic
68Mbps
for Internet Access
EVC
2
100Mbps UNI (
port)
CoS 6
2 Mbps
CIR for
control
Port/VLAN/CoS-based
Slide32Class of Service Phase 2 (MEF 23.1)
Add new performance attributes for Mean Delay and Delay Range introduced in MEF 10.2Quantified CoS performance objectives and associated parameters for point to point EVCs and OVCsBandwidth profile parameter constraints
MEN A
MEN B
MEN A
OVC
OVC
EVC
UNI
UNI
UNI
UNI
ENNI
Quantitative Delay, Delay Variation,
Loss objectives
Quantitative Delay, Delay Variation,
Loss objectives
Quantitative Delay, Delay Variation,
Loss objectives
Slide33Delivering 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)
Slide34Three CoS Model Using PCP or DSCP per Frame
DRAFT
CoS Label CoS and Color Identifiers1 C-Tag PCPPHB (DSCP)S-Tag PCP Without DEI SupportedS-Tag PCP With DEI SupportedColor GreenColorYellowColor GreenColorYellowColorGreenColorYellowH5N/Sin Phase 2EF (46)N/Sin Phase 25 N/Sin Phase 25M 3 2 AF31 (26)AF32 (28) or AF33 (30)3 23L1 0AF11 (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
Slide35Example: Full C-Tag PCP Mappings
MEF CoS Combination Supported on EVCPCP Mapping per Class of Service - Color Blind ModeHML{H + M + L}52-4, 6, 70, 1{H + M}50-4, 6, 7N/A{H + L}5N/A0-4, 6, 7{M + L}N/A2-70, 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
Slide36Parameters 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
FD
Percentile (
P
d
)
³
99.9th
³
99th
³
95th
Time Interval (T)
£
Month
£
Month
£
Month
MFD
Time Interval (T)
£
Month
£
Month
£
Month
IFDV
Percentile (
P
v
)
³
99.9th
³
99
th
or N/S
1
N/S
Time Interval (T)
£
Month
£
Month or N/S
1
N/S
Pair Interval
(D
t)
³
1sec
³
1sec or N/S
1
N/S
FDR
Percentile (
P
r
)
³
99.9th
³
99
th
or N/S
1
N/S
Time Interval (T)
£
Month
£
Month or N/S
1
N/S
FLR
Time Interval (T)
£
Month
£
Month
£
Month
Availability
TBD
TBD
TBD
TBD
High Loss Interval
TBD
TBD
TBD
TBD
Consecutive High Loss Interval
TBD
TBD
TBD
TBD
Slide37Performance Tier 1 CPOs
MEF 23.1 Table 6: Performance Tier 1 (Metro) CoS Performance Objectives
DRAFT
Performance
Metric
CoS Label H
CoS Label M
CoS Label L
1
Applicability
Pt-Pt
MultiPoint
Pt-Pt
MultiPoint
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
Slide38Performance Tier 2 CPOs
MEF 23.1 Table 7: Performance Tier 2 (Regional) CoS Performance Objectives
DRAFT
Performance
Metric
CoS Label H
CoS Label M
CoS Label L
1
Applicability
Pt-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
TBD
High Loss Interval
TBD
TBD
TBD
TBD
TBD
TBD
Consecutive High Loss Interval
TBD
TBD
TBD
TBD
TBD
TBD
Slide39Per Application CPOs
Covers the following applications
VoIP Data
Video Conferencing Data
VoIP and
Video conference Signaling
IPTV Data
Plane, IPTV
Control Plane
Streaming Media
Interactive Gaming
Circuit Emulation
Telepresence:
includes
:
Remote Surgery (Video)
Financial/Trading
CCTV
Database (Hot Standby
),
(WAN Replication
),
(Client/Server)
T.38 Fax
SANs (Synchronous
and Asynchronous Replication
)
Network Attached Storage
Text and Graphics Terminals
Point of Sale Transactions
Mobile Backhaul H, M, L
Best
Effort Includes: Email, Store/Forward Fax, WAFS, Web Browsing, File
Transfer (including hi-res image file transfer
), E-Commerce
Slide40Per Application CPOs (Summary)
Application
FD
MFD
FLR
FDR
IFDV
VoIP Data
125 ms pref
375 ms limit
P
d
= 0.999
100 ms pref
350 ms limit
3e-2
50 ms
P
r
= 0.999
40 ms
P
v
= 0.999
Video Conferencing Data
125 ms pref
375 ms limit
P
d
= 0.999
100 ms pref
350 ms limit
1e-2
50 ms
P
r
= 0.999
40 ms
P
v
= 0.999
VoIP and Videoconf Signaling
Not specified
250 ms pref
1e-3
Not specified
Not specified
IPTV Data Plane
125 ms
P
d
= 0.999
100 ms
1e-3
50 ms
P
r
= 0.999
40 ms
P
v
= 0.999
IPTV Control Plane
Not specified
75 ms
1e-3
Not specified
Not specified
Streaming Media
Not specified
Not specified
1e-2
2 s
1.5 s
P
v
= 0.99
Interactive Gaming
50 ms
40 ms
1e-3
10 ms
8 ms
Circuit Emulation
25 ms
P
d
= .999999
20 ms
1e-6
15 ms
P
r
= .999
10
ms.
P
v
= .999,
Δ
t
= 900s,
T
= 3600s
Telepresence, includes:
Remote Surgery (Video)
120 ms
P
d
= 0.999
110 ms
2.5e-4
40 ms
P
r
= 0.999
10 ms
Financial/Trading
Unknown
2 ms
1e-5
Unknown
Unknown
CCTV
150 ms (MPEG-4)
200 ms (MJPEG)
P
d
=0.999
Not specified
1e-2
50 ms
P
r
= 0.999
Not specified
Database (Hot Standby)
5 ms
Not specified
1e-5
Unknown
Unknown
Database (WAN Replication)
50 ms
Not specified
1e-5
Unknown
Unknown
Database (Client/Server)
Not specified
1 s
1e-3
Not specified
Not specified
T.38 Fax
400
ms,
P
d
= 0.999
350 ms
3e-2
50 ms
P
r
= 0.999
40 ms
P
v
= 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 ms
Network Attached Storage
Not specified
1 s
1e-3
Not specified
Not specified
Text and Graphics Terminals
Not specified
200 ms
1e-3
Not specified
Not specified
Point of Sale Transactions
2 s
1 s
1e-3
Not specified
Not specified
Best Effort, includes
: Email, Store/Forward Fax, WAFS, Web Browsing, File
Transfer (including hi-res image file transfer
), E-Commerce
Not specified
Not specified
Not specified
Not specified
Not specified
Mobile Backhaul H
10 ms
7 ms
1e-4
5 ms
3 ms
Mobile Backhaul M
20 ms
13 ms
1e-4
10 ms
8 ms
Mobile Backhaul L
37 ms
28 ms
1e-3
Not specified
Not specified
Slide41Benefits 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
Slide42Example Uses of Services
Slide43Examples 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
Slide44Example
Use of EVPL
ISP
Customer 1
Turbo 2000
Internet Access, Inc.
ISP
Customer 2
ISP
Customer 3
Service Multiplexing
VLAN
2000 Blue
VLAN 2000 Yellow
VLAN 2000 Green
VLAN 178 BlueVLAN 179 YellowVLAN 180 Green
Efficient use of ISP router ports
Easy configuration at ISP customer sitesThis port and VLAN 2000 (or even untagged) to Turbo Internet
Slide45Example 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 serviceEfficient use of DDC’s router portsIL and Used Cars cannot see each other’s traffic
Service Multiplexing
A
B
D
EVC
1
C
EVC
2
Slide46Example Use of EP-Tree
A
B
C
D
EVC
1
Internet for the
Small Guy, Inc.
Small Guy Travel
Root
Leaves
Diminutive Guy
Gaming 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
Slide47Example Use of EVP-Tree
A
B
C
D
EVC
1
Internet for the
Small Guy, Inc.
Small Guy Travel
Roots
Leaves
Diminutive Guy
Gaming 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
Leaves
Service Multiplexing
Slide48Carrier Ethernet in Action
Application
EVPL
Profiles, Sample CoS Objectives
Carrier Ethernet
Service
Provider
Committed Information Rate
Priority
Excess Information Rate
10 mbps
0
0
100 mbps
1
0
50 mbps
2
0
40 mbps
3
0
0
4
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
UNI
COMPANY 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.
Slide49MEF Reference Presentations
MEF Reference Presentations Covering the Principal Work of the MEFOverview 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 MEFIncludes 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 hereCarrier Ethernet Services Overview This presentation defines the MEF Ethernet Services that represent the principal attribute of a Carrier Ethernet NetworkCarrier Ethernet User-Network InterfaceThis presentation discusses the market impact of MEF 20: UNI Type 2 Implementation agreement Carrier Ethernet Access Technology OverviewThis 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 OverviewThis 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 circuitCarrier Ethernet for Mobile BackhaulA 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 networksCarrier Ethernet Business ServicesA 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
Slide50End of Presentation