carrier ethernet services overview reference presentation r03 2011-11-15
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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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End of Presentation
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