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Carrier Ethernet Services:

Speaker Introduction. Speakers:Akram Ashamalla, AgilentGlenn Chagnot, Spirent CommunicationsChair:Bob Mandeville, Iometrix. The Challenges of Testing Carrier Ethernet and Triple Play. MEF Certification Testing of Carrier Ethernet ServicesTesting of Triple Play data, voice and video applic

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Carrier Ethernet Services:

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    1. Carrier Ethernet Services: A Full Range of Testing Tasks

    2. Speaker Introduction Speakers: Akram Ashamalla, Agilent Glenn Chagnot, Spirent Communications Chair: Bob Mandeville, Iometrix

    3. The Challenges of Testing Carrier Ethernet and Triple Play MEF Certification Testing of Carrier Ethernet Services Testing of Triple Play data, voice and video application quality, performance and scalability New Areas of Carrier Ethernet Testing: 802.3ah Ethernet in the First Mile conformance Circuit Emulation Services over Ethernet Services Interoperability

    4. MEF Certification Testing of Carrier Ethernet Services MEF 9 specifies tests that determine the readiness of a Metro Ethernet Network (MEN) to deliver various Ethernet Services Test requirements are derived from Metro Ethernet Forum Technical Committee documents MEF 9 tests are based on MEF 1 which specifies the Ethernet Services Model Tests are defined from the point of view of the Subscriber’s equipment that is used to access Ethernet Services

    5. MEF Testing Goals Vendors can refer to MEF 9 test procedures in the development and commercial cycles of their products Carriers can use MEF 9 to ensure that the devices or systems they select to deploy in the MEN will result in the successful delivery of Ethernet Services Subscribers can attach to the MEN knowing that the Ethernet services they access satisfy criteria based on accepted requirements and test procedures

    6. MEF 9 A Test Specification for Services MEF 9 is an innovative service-oriented test specification Defines tests that can be applied to Ethernet Services defined by the MEF E-Line Services (EPL, EVPL) E-LAN Services MEF 9 opens the way for future service-oriented test specifications based on MEF services specifications

    7. MEF 14 Traffic Management Test Specifications Carrier Ethernet Service Level Specifications include Bandwidth Profiles and Performance Metrics Performance Metrics are associated with EVCs Frame Delay Performance Frame Delay Variation Performance Frame Loss Ratio Performance Bandwidth Profiles are associated with the UNI: Committed Information Rate (CIR) expressed as bits per second. CIR MUST be ? 0. Committed Burst Size (CBS) expressed as bytes. Excess Information Rate (EIR) expressed as bits per second. EIR MUST be ? 0 Excess Burst Size (EBS) expressed as bytes. Coupling Flag (CF) MUST have only one of two possible values, 0 or 1. Color Mode (CM) MUST have only one of two possible values, “color-blind” and “color-aware”

    8. Testing Converged Services for Carrier Deployment The Key Market Issue Traditional Service providers are in a race with new competitors for deployment of bundled, integrated, triple play services. The Deciding Factors Data and voice are table stakes, Video (& especially IPTV) is now driving the bundle. Subscriber experience must be equal or better than competitive offerings from the first day of video delivery. Deployment and Service Management Challenges Service providers are beginning deployment without real practical QoS experience of how the infrastructure, triple play applications and the ultimate services will work as an integrated triple play solution

    9. Ethernet Services & Triple-Play Ubiquitous standards based Brings the Ethernet cost model to the carrier network as Ethernet dominates the Access and Metro network Technical advantages of layer 2 VPNs etc., Improved performance characteristics for Video & Voice Lower OPEX and CAPEX for Service Providers

    10. New Triple Play Test Areas New tests required for triple play networks New large Scale 10Gb Ethernet testing New Ethernet Services testing New tests for IPTV/video picture quality New industry standard (ITU) based impairment testing New large scale video management testing New pro-active security testing New “system” test methodologies for integrated testing New Service Management measurement & diagnostics

    11. Key Video Quality Parameters Program Rate – Transport stream rate in kilobits per second as observed Program Clock Rate Overall Jitter – Jitter of synchronization stream in microseconds V-Factor –calculation of user perceived video quality, Jitter Discards – Number of frames discarded due to jitter Out of Sequence – Number of miss-ordered frames delivered In Sequence – Number of properly ordered frames delivered Network Loss Probability – Statistically accurate predictive calculation of frame loss Max Loss Episode Length – Maximum number of lost frames per episode Max Loss Episodes – Cumulative count of loss episodes since first observation Multicast Join Time – Actual time the stream was joined in “epoch” seconds Multicast First Time – Actual time the first data arrived in “epoch” seconds Compression Ratio – Ratio of I frames to I+P+B frames I frame Count – Number of “I” (Intra) frames for this sample period P frame Count – Number of “P” (Predictive) frames for this sample period B frame Count – Number of “B” (Bi-directional) frames for this sample period

    12. New Areas of Carrier Ethernet Testing Access Technologies: 802.3ah Ethernet in the First Mile conformance EFMA (Ethernet in the First Mile Alliance) is now part of the Metro Ethernet Forum 802.3ah includes OAM conformance tests Circuit Emulation Services over Ethernet MEF Technical Committee is in the process of defining a test specification for Circuit Emulation Services over Ethernet based on MEF 8 Performance & Interoperability Carrier Ethernet can leverage the vast experience the test industry has built up in performance verification of access, aggregation and core infrastructure elements MEF aims to extend conformance testing to interoperability testing of services and topologies in the near future

    13. Metro Ethernet and Spirent MEF Certifications MEF9 and MEF14 Broad Range of Transport Interfaces and Technologies Pseudowire, VPLS-LDP, VPLS-BGP, RFC-2547bis OC-3/12/48/192 PoS / ATM, 10/100/Gig/10 Gig Ethernet, RPR, GFP Extreme Triple Play Solutions High performance, stateful application traffic Data (HTTP, FTP, POP3, etc.) Voice (VoIP, PSTN, Voice Quality) Video (Video Quality) Impairments to determine minimum service level requirements necessary to support target application performance

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