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Carrier Ethernet Services

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1 Carrier Ethernet Services
MEF Reference Presentation November 2011

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: Notice © The Metro Ethernet Forum 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 as A 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
“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” End User Subscriber Site EVC End User Subscriber Site UNI ENNI UNI Service Provider 1 Service Provider 2 Carrier Ethernet Network Carrier Ethernet Network CE CE Ethernet Services (“Eth”) Layer Terminology ETH UNI-C ETH UNI-N ETH ENNI-N ETH ENNI-N ETH UNI-N ETH UNI-C EVC: Ethernet Virtual Connection UNI: 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 processes UNI-N UNI network-side processes ENNI: External Network to Network Interface; the physical demarcation point between the responsibility of the two Service Providers ENNI-N: ENNI Processes

8 Carrier Ethernet Architecture
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. 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 Control Plane ETH Layer Data Plane TRAN Layer

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 Carrier Ethernet Service Types
E-Line Service Type for Virtual Private Lines (EVPL) Ethernet Private Lines (EPL) Ethernet Internet Access Point-to-Point EVC UNI Features Low latency Predictable QoS 1 mbps to 10 gbps Standardized Reliable Manageable Optimal Line Usage Low cost UNI E-LAN Service Type for Multipoint L2 VPNs Transparent LAN Service Multicast networks Multi-point to Multi-point EVC UNI UNI UNI E-Tree Service Type for Rooted multi-point L2 VPNs Broadcast networks Telemetry networks UNI Rooted Multipoint EVC UNI Explain service types generally as they will be explained in more details on next few slides E-Access is a new service type (hence the animation) UNI E- Access Service Type* for Wholesale Access Services Access EPL Access EVPL Point-to-Point EVC UNI ENNI Carrier Ethernet Access Network UNI Carrier Ethernet Service Provider E-Access * Technical Specification due for completion 1/12. All specifications subject to change until approved.

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 An Ethernet Private Line (EPL) service is specified using an E-Line Service type. An EPL service uses a Point-to-Point EVC between two UNIs and provides a high degree of transparency for Service Frames between the UNIs it interconnects such that the Service Frame’s header and payload are identical at both the source and destination UNI when a Service Frame is delivered. Figure 6 below shows the basic structure of EPL service. UNI CE UNI Carrier Ethernet Network ISP POP Internet CE UNI 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 & spoke” connectivity via Service Multiplexed UNI at hub site Similar to Frame Relay or Private Line hub and spoke deployments Service Multiplexed Ethernet UNI An Ethernet Virtual Private Line (EVPL) is created using an E-Line Service type. An EVPL can be used to create services similar to the Ethernet Private Line (EPL) with some notable exceptions. First, an EVPL allows for service multiplexing at the UNI. This capability allows more than one EVC to be supported at the UNI where the EPL does not allow this. Second, an EVPL need not provide as much transparency of Service Frames as with an EPL. Because service multiplexing is permitted, some Service Frames may be sent to one EVC while other Service Frames may be sent to other EVCs. An E-Line Service such as EVPL can provide point-to-point EVCs between UNIs analogous to using Frame Relay PVCs to interconnect sites. 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 An E-Line Service can be used to construct services analogous to Frame Relay or private leased lines. However, the range of Ethernet bandwidth and connectivity options is much greater. UNI CE UNI Carrier Ethernet Network CE UNI CE Point-to-Point EVCs

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 Ethernet Virtual Private LAN example Internet ISP POP Multipoint-to-Multipoint EVC Carrier Ethernet Network CE UNI CE UNI CE Point-to-Point EVC (EVPL) UNI Some Subscribers commonly desire an E-LAN service type to connect their UNIs in a metro network, while at the same time accessing other services from one or more of those UNIs. Example on right a Subscriber site wants to access a public or private IP service from a UNI that is also used to for E-LAN service among the Subscriber’s several metro locations. The EP-LAN service is defined to provide CE-VLAN tag preservation and tunneling of key Layer 2 Control Protocols. A key advantage of this approach is that the Subscriber can configure VLANs across the sites without any need to coordinate with the Service Provider. Each interface is configured for All to One Bundling and, therefore, EP-LAN service supports CE-VLAN ID preservation. In addition, EP-LAN supports CE-VLAN CoS preservation. Carrier Ethernet Network UNI CE UNI Multipoint-to-Multipoint EVC CE

15 Services Using E-Tree Service Type
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 Ethernet Private Tree example Ethernet Virtual Private Tree example Rooted-Multipoint EVC UNI Carrier Ethernet Network Multipoint to Multipoint EVC UNI Root Subscribers with multiple sites may want to interconnect them to provide services other than those that resemble a LAN. These services may be distributed from a centralized site (or few such sites) where the distribution site is designated as a Root and all the remaining sites are designated as leaves. The EP-Tree service is defined to provide CE-VLAN tag preservation and tunneling of key Layer 2 Control Protocols. A key advantage of this approach is that the Subscriber can configure VLANs across the sites without any need to coordinate with the Service Provider. Each interface is configured for All to One Bundling and, therefore, EP-Tree service supports CE-VLAN ID preservation. In addition, EP-Tree supports CE-VLAN CoS preservation. Some subscribers desire access to certain applications or content services from well-defined access points within their own (or an external) network. In this case it is necessary to interconnect the participating UNIs in a Rooted-Multipoint connection to the well-defined access (or root) point. One or more of the Subscriber’s UNIs may also support other services, e.g., EVPL or EVP-LAN. For such cases, the EVP-Tree service is used. Leaf CE Root Leaf UNI UNI Leaf CE CE UNI UNI CE UNI CE Rooted-Multipoint EVC UNI CE CE

16 Delivered 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 100Mbps/1Gbps/10 Gbps SONET/ SDH PON Fiber Service Provider 1 WiMax 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-1 CIR EIR EVC-2 EVC-3 Total Physical Bandwidth at the UNI

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 EVC1 EVC2 EVC3 Ingress Bandwidth Profile Per Ingress UNI Port-based UNI EVC1 EVC2 EVC3 Ingress Bandwidth Profile Per EVC1 Ingress Bandwidth Profile Per EVC2 Ingress Bandwidth Profile Per EVC3 Port/VLAN-based UNI EVC1 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 EVC2 Port/VLAN/CoS-based

20 Further Technical information
For information on MEF Technical Specifications visit metroethernetforum.org Key MEF Carrier Ethernet Services Specifications Carrier Ethernet services attributes and definitions MEF 6.1 Metro Ethernet Services Definitions Phase 2 MEF 10.2 Ethernet Services Attributes Phase 2 MEF 26 External Network Network Interface (ENNI) Phase 1 Carrier Ethernet Services Certification Test Suites 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 9 Abstract Test Suite for Ethernet Services at the UNI MEF 14 Abstract Test Suite for Traffic Management phase 1 MEF Certification

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

22 Carrier Ethernet Architecture for Cable Operators
Headend Hub Business Services over Fiber (GigE) CE E-Line Internet Access UNI Home Run Fiber Analog TV Feeds E-LAN D2A Node EoCoax EoHFC A2D Video Server EQAM CE UNI Ad Insertion CMTS Digital TV, VOD, Interactive TV, Gaming Switched Fiber Optical Metro Ring Network Business Park Services Managed Business Applications EoDOCSIS (future) E-NNI UNI Hub Dedicated Fiber end-points DOCSIS end-points MEF E-Line EPL (Ethernet Private Line)EVPL (Ethernet Virtual Private Line) MEF E-LAN Converged Services (Video, VoIP, HSI, VPNs) EoSONET /SDH Another MSO or carrier Network Wireless Plant Extension PON E-Line E-LAN Leased T1/DS3 Voice/Video Telephony Voice gateway WDM CE EoT1/DS3 UNI CE UNI CE Greenfield Residential & Business Services

23 New Technical Work

24 Carrier Ethernet Class of Service
MEF Technical Update Standards Two New Specifications (Oct 2011) MEF 32 OVC Service Level Specifications MEF Protection Across External Interface Six MEF new specs formalized at Jan ‘12 meeting include three related projects: E-Access Service Type Standardizing buying and selling of wholesale CE Carrier Ethernet Class of Service Performance Objectives per CoS ,etc. Class of Service Phase 2 Performance Objectives per CoS ,etc. Covered elsewhere Mobile Backhaul Phase 1 New definitions for implementing CE in 4G/LTE Mobile Backhaul Phase 2 New definitions for implementing CE in 4G/LTE

25 Carrier Ethernet Class of Service
MEF 23 Original CoS Specification

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 PCP (8 values) – Priority Control Point – Ethernet DSCP (64 values) – Differentiated Services Control Point EVC/VLAN Tag ID – defines priority and not use PCP in 10.1 MEF spec FD = Frame Delay IFDV = Interconnect Frame Delay Variation FLR = Frame Delay Range MFD = Measured Frame Delay * Note: PCP: Priority Code Point : 3 bit Priority in IEEE datagram frames. DSCP: 6-bit Differentiated Services Code Point in IP frames

27 Mapping the CoS Model at an ENNI
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 Service Provider 1 Carrier Ethernet Network CE UNI ENNI Service Provider 2 Without MEF CoS IA: MENs requires bilateral agreements at each ENNI. Customers may not get consistent QoS treatment CoS Rock CoS Paper CoS Scissors CoS Plus CoS Square CoS Heart CoS Coal CoS Mapping? With MEF CoS IA: MENs remark frames on egress of an ENNI to align based on standardized MEF CoS indications. CoS Rock CoS Paper CoS Scissors CoS Plus CoS Square CoS Heart CoS Coal CoS Medium* CoS High* CoS Low* * Each CoS Label associated with particular CPO

28 Carrier Ethernet Class of Service – Phase 2
Introducing MEF 23.1 Carrier Ethernet Class of Service – Phase 2

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 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 New Performance Tiers: Metro (250km), Regional (1,200km), Continental (7,000km), Global/Intercontinental (27,500 km) 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 UNI EVC1 CoS 4 10 Mbps CIR for VoIP CoS 2 20Mbps CIR for VPN data traffic 68Mbps for Internet Access EVC2 100Mbps UNI (port) CoS 6 2 Mbps CIR for control Port/VLAN/CoS-based Example of bandwidth profiles for typical Mobile Backhaul with 4 classes of service. Each CoS has one way performance metrics objectives

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 Quantitative Delay, Delay Variation, Loss objectives Quantitative Delay, Delay Variation, Loss objectives ENNI MEN A MEN B UNI UNI OVC OVC Quantitative Delay, Delay Variation, Loss objectives In addition to what is stated on the slide. Phase 2 Emerging areas: - Convergence on required Class of Service Performance Objectives (CPOs) - Creation of Performance Tiers (PT) - Added support for OVC cases (e.g., OVC services, UNI Tunnel Access) - Adding guidance for burst alignment (i.e., CBS) and shaping for ENNI case - Increased number of performance parameters MEN A UNI UNI EVC

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 – 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
CoS Label CoS and Color Identifiers1 C-Tag PCP PHB (DSCP) S-Tag PCP Without DEI Supported S-Tag PCP With DEI Supported Color Green Color Yellow Green H 5 N/S in Phase 2 EF (46) M 3 2 AF31 (26) AF32 (28) or AF33 (30) L 1 AF11 (10) AF12 (12), AF13 (14) or Default (0) 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 DRAFT

35 Example: Full C-Tag PCP Mappings
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. 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} 0-4, 6, 7 N/A {H + L} {M + L} 2-7 Example PCP Mapping for Multi-CoS EVC Supporting Only Standard Classes of Service at UNI – “Router-Application-Friendly” mapping

36 Parameters for Performance Metrics
Parameter Name Parameter Values for CoS Label H Parameter Values for CoS Label M Parameter Values for CoS Label L FD Percentile (Pd) ³ 99.9th ³ 99th ³ 95th Time Interval (T) £ Month £ Month MFD IFDV Percentile (Pv) ³ 99.9th ³ 99th or N/S1 N/S £ Month or N/S1 Pair Interval (Dt) ³ 1sec ³ 1sec or N/S1 FDR Percentile (Pr) FLR Availability TBD High Loss Interval Consecutive High Loss Interval MEF 23.1 Table 5: CoS Label High, Medium and Low (H, M and L) Parameter Values DRAFT

37 Performance Tier 1 CPOs DRAFT
Metric CoS Label H CoS Label M CoS Label L1 Applicability Pt-Pt MultiPoint FD (ms) £ 10 TBD £ 20 £ 37 At least one of either FD or MFD required MFD (ms) £ 7 £ 13 £ 28 IFDV (ms) £ 3 £ 8 or N/S 2 N/S At least one of either FDR or IFDV required FDR (ms) £ 5 £ 10 or N/S 2 FLR (percent) £ .01% i.e £ .1% i.e Availability High Loss Interval Consecutive High Loss Interval MEF 23.1 Table 6: Performance Tier 1 (Metro) CoS Performance Objectives DRAFT

38 Performance Tier 2 CPOs DRAFT Performance Metric CoS Label H
CoS Label M CoS Label L1 Applicability Pt-Pt MultiPoint FD (ms) £ 25 TBD £ 75 £ 125 At least one of either FD or MFD required MFD (ms) £ 18 £ 30 £ 50 IFDV (ms) £ 8 £ 40 or N/S 2 N/S At least one of either FDR or IFDV required FDR (ms) £ 10 £ 50 or N/S 2 FLR (percent) £ .01% i.e., 10-4 £ .01% i.e., 10-4 £ .1% i.e., 10-3 Availability High Loss Interval Consecutive High Loss Interval MEF 23.1 Table 7: Performance Tier 2 (Regional) CoS Performance Objectives DRAFT

39 Per 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: , Store/Forward Fax, WAFS, Web Browsing, File Transfer (including hi-res image file transfer), E-Commerce

40 Per Application CPOs (Summary)
FD MFD FLR FDR IFDV VoIP Data 125 ms pref 375 ms limit Pd = 0.999 100 ms pref 350 ms limit 3e-2 50 ms Pr = 0.999 40 ms Pv = 0.999 Video Conferencing Data 1e-2 VoIP and Videoconf Signaling Not specified 250 ms pref 1e-3 IPTV Data Plane 125 ms 100 ms IPTV Control Plane 75 ms Streaming Media 2 s 1.5 s Pv = 0.99 Interactive Gaming 10 ms 8 ms Circuit Emulation 25 ms Pd = 20 ms 1e-6 15 ms Pr = .999 10 ms. Pv = .999, Δt = 900s, T = 3600s Telepresence, includes: Remote Surgery (Video) 120 ms 110 ms 2.5e-4 Financial/Trading Unknown 2 ms 1e-5 CCTV 150 ms (MPEG-4) 200 ms (MJPEG) Pd=0.999 Database (Hot Standby) 5 ms Database (WAN Replication) Database (Client/Server) 1 s T.38 Fax 400 ms, 350 ms SANs (Synchronous Replication) 3.75 ms 1e-4 1.25 ms 1 ms SANs (Asynchronous Replication)* 30 ms Network Attached Storage Text and Graphics Terminals 200 ms Point of Sale Transactions Best Effort, includes: , Store/Forward Fax, WAFS, Web Browsing, File Transfer (including hi-res image file transfer), E-Commerce Mobile Backhaul H 7 ms 3 ms Mobile Backhaul M 13 ms Mobile Backhaul L 37 ms 28 ms

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 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 Branch EPL EPL Firewall HQ Branch

44 Example Use of EVPL Turbo 2000 Internet Access, Inc.
Service Multiplexing 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 Turbo Internet

45 Walk In Drive Out Used Cars, Inc.
Example Use of EVP-LAN A B D EVC1 C EVC2 Service Multiplexing Instant Loans, Inc. Credit Check, 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

46 Internet for the Small Guy, Inc. Diminutive Guy Gaming Center
Example Use of EP-Tree A Small Guy Travel D Internet for the Small Guy, Inc. B Tiny Guy Coffee EVC1 C Diminutive Guy Gaming Center Root Leaves 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
Elevator Video Franchises Service Multiplexing Leaves A Small Guy Travel D Internet for the Small Guy, Inc. B Tiny Guy Coffee EVC1 C Diminutive Guy Gaming Center Roots Leaves 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

48 Carrier Ethernet in Action
Application EVPL Profiles, Sample CoS Objectives Carrier Ethernet Service Provider Committed Information Rate Priority Excess Information Rate 10 mbps 100 mbps 1 50 mbps 2 40 mbps 3 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 25ms N/A Frame Loss Ratio 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. Talk about bw profiles, colors, etc

49 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 Programs A 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

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