Carrier Ethernet Services Standards for Mobile Backhaul

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    Notes on slide 1

    The presentation provides an overview of the activities and project work of the Metro Ethernet Forum (MEF) for standardising network connection services for mobile backhaul networks using Carrier Ethernet technologies. Harris Stratex Networks was a founding member of the mobile industry initiative within the MEF and is leading the MEF Marketing Work Group for the mobile/cellular industry.

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    Carrier Ethernet Services Standards for Mobile Backhaul - Presentation Transcript

    1. MEF Carrier Ethernet Services Standards for Mobile Backhaul Metro Ethernet Forum Update and Overview Peter Croy Harris Stratex Networks V5
    2. Contents
      • MEF overview and membership update
      • MEF Mobile/Cellular Industry Focus
      • MEF Service Specs for Mobile Backhaul
      • MEF Technical Project for Mobile Backhaul
    3. MEF Membership April 2007 (Part 1 of 2)
      • Accedian Networks
      • Actelis Networks
      • Adtran
      • Adva Optical Networking
      • Aethera Networks
      • Agilent Technologies
      • Aktino
      • Alcatel- Lucent
      • Altera
      • AMCC
      • ANDA Networks
      • ARRIS International
      • Atrica
      • Aurora Networks
      • Axerra Networks
      • Bay Microsystems
      • Broadcom
      • CableLabs
      • Calix
      • Canoga Perkins
      • Ceterus Networks
      • Ceragon Networks
      • Siemens
      • Spirent Communications
      • Strix Systems
      • Sunrise Telecom
      • Switchcore
      • T | Pack
      • Tejas Networks
      • Telco Systems
      • Telcordia Technologies
      • Tellabs
      • Telrad Networks
      • Terawave Communications
      • Transition Networks
      • Transmode Optical
      • Transwitch Corporation
      • Turin Networks
      • UNH-IOL
      • UTStarcom
      • Vyyo
      • World Wide Packets
      • Zarlink Semiconductor
      • ZTE Corporation
      • Zyxel Communications
      • Iskratel
      • Ixia
      • JDSU
      • Juniper Networks
      • Marvell Semiconductor
      • MRV Communications
      • Nakina Systems
      • Narad Networks
      • NEC
      • Neon Communications
      • Nortel Networks Corp.
      • Occam Networks
      • Omnitron Systems
      • OpVista
      • Overture Networks
      • PCT International
      • PMC-Sierra
      • RAD Data Communications
      • Redback Networks
      • Resolute Networks
      • Rivulet Communications
      • Safenet
      • Ciena Corporation
      • Cisco Systems
      • Corrigent Systems
      • Dallas Semiconductor /Maxim
      • Do Networks
      • EANTC
      • ECI Telecom
      • Ericsson
      • Ethos Networks
      • EXFO
      • Extreme Networks
      • Foundry Networks
      • Fujitsu Network Communications
      • Gridpoint Systems
      • Hammerhead Systems
      • Harris Stratex
      • Hatteras Networks
      • Huawei Technologies
      • IBM Internet Security Systems
      • Infovista
      • Iometrix
      • Ipitek
      90 Equipment Vendors, Test Companies, Lab Members - 50% increase last year
    4. MEF Membership April 2007 (Part 2 of 2)
      • Alpheus Communications
      • AT&T
      • Bell Canada
      • Bright House Networks
      • British Telecom
      • China Telecom
      • Cincinnati Bell
      • Colt
      • Comcast
      • Cox Communications
      • Embarq
      • FiberTower
      • France Telecom R&D LLC
      • Swisscom
      • Symphony Communication
      • Telecom Italia
      • Teliasonera AB
      • Telus
      • Time Warner Cable
      • T-Systems
      • Verizon Business
      • VSNL International
      • XO Communications
      • KDDI R&D Laboratories
      • Met-Net Communications
      • ntl: Telewest
      • NTT Advanced Technology
      • Optimum Lightpath
      • PCCW
      • PT Prime
      • Qwest Communications
      • RCN Business Solutions
      • Shanghai Information Network
      33 Service Provider and Cable MSO Members - 40% increase last year Now 123 Members
    5. Carrier Ethernet Defined
      • Carrier Ethernet is a ubiquitous, standardized, carrier-class SERVICE defined by five attributes that distinguish Carrier Ethernet from familiar LAN based Ethernet
      • It brings the compelling business benefit of the Ethernet cost model to achieve significant savings
      Carrier Ethernet
      • Scalability
      • Standardized Services
      • Service Management
      • Quality of Service
      • Reliability
      Carrier Ethernet Attributes Accelerate the worldwide adoption of carrier-class Ethernet networks and services MEF Mission: Service Management Reliability Standardized Services Quality of Service Scalability
    6. MEF Mobile/Cellular Industry Focus
      • Group established in Vancouver in July 2006 as MEF Marketing initiative - ‘Mobile Backhaul Group’
      • Group goal:
        • Promote and define the use of Carrier Ethernet services for mobile/cellular backhaul networks and their evolution
      • Mobile/Cellular networks definition:
        • Legacy Cellular/GSM, CDMA2000, UMTS and WiMax802.16e.
      • Network cost pressures and new packet technologies provide an opportunity to evolve legacy PDH/SDH mobile backhaul networks using Carrier Ethernet services
      • Initiative has 20+ members from
        • Alcatel-Lucent, Aktino, Axerra, BellSouth, Ceterus, Cisco, Ericsson, Fibertower, Gridpoint Systems, Harris Stratex, Juniper, KDDI R&D, Nokia Siemens, Nortel, Resolute Networks, Tejas Networks (+ more)
    7. MEF Service Specifications for Mobile Backhaul
      • Focused on evolution of RAN backhaul networks
        • Cost effective Ethernet transport solution for new low margin, high volume mobile data services
        • Carrier Ethernet as end-to-end transport service
        • Tailored transport service types and attributes
        • Evolution from legacy circuit-switched networks
      • Support network design and evolution targets
        • Flexibility and scalability are a must
        • Reliability and recovery mechanisms offer carrier-grade transport network performance
        • Simple management and service provisioning
        • Cost-effective network operations and maintenance
    8. The UNI and the MEN Reference Model
      • UNI … User to Network Interface
      • Functionally the UNI is an asymmetric, compound functional element
      • Consists of a client side, referred to as the UNI-C, and a network side, referred to as the UNI-N
      • The term UNI is used to refer to these two functional elements, and generically, to the data, management and control plane functions associated with them.
    9. Service Bandwidth Profiles defined in MEF 10
      • MEF 10.1 spec has three defined bandwidth profiles
        • Ingress Bandwidth Profile Per Ingress UNI
        • Ingress Bandwidth Profile Per EVC
        • Ingress Bandwidth Profile Per CoS ID
      • MEF 10.1 main bandwidth parameters <CIR, CBS, EIR, EBS>
        • CIR … Committed Information Rate - In Bits per second
        • CBS … Committed Burst Size - In Bytes per second
        • CIR/CBS determines guaranteed data frame delivery per service level objective and agreement
        • EIR … Excess Information Rate - In Bits per second
        • EBS … Excess Burst Size - In Bytes per second
        • EIR/EBS determines amount of data frame delivery allowed over and above of the committed bandwidth parameters
    10. CIR vs. EIR service example
      • Conceptual Example
        • 3 EVCs share fixed UNI bandwidth
        • 3 CIRs can always be met
        • 3 EIRs can not always be assured (simultaneously)
      CIR EIR CIR EIR CIR EIR Total Bandwidth at UNI EVC1 EVC2 EVC3 Traffic Passed at CIR rates are subject to SLA conformance - if other parameters also met EIR traffic is marked yellow – not subject to SLA
    11. Three Types of Bandwidth Profiles defined in MEF 10 UNI EVC 1 EVC 2 EVC 3 Ingress Bandwidth Profile Per Ingress UNI 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 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 1) At the UNI level 2) At the EVC level 3) At the CE-VLAN level
      • Bandwidth Profile
      • Parameters:
      • CIR
      • CBS
      • EIR
      • EBS
      • Performance
      • Attributes:
      • Delay
      • Delay Variation
      • Frame loss ratio
      • Availability
    12. Ethernet Virtual Connection (EVC) defined …
      • An EVC is “an instance of an association of 2 or more UNIs”
      • EVCs help visualize the Ethernet connections
        • Like Frame Relay and ATM PVCs or SVCs
        • Cannot leak frame from one EVC to another
      • MEF has defined 3 EVC types
        • Point-to-Point - Multipoint-to-Multipoint
        • - Multipoint-to-Point
      EVCs define the service connectivity MEN Multipoint-to-Multipoint EVC MEN … Metro Ethernet network domain UNI MEN UNI Point-to-Point EVC
    13. Example Service using E-Line Service Types
      • Ethernet Private Line - EPL
        • Replaces a TDM Private line
        • Dedicated UNIs for Point-to-Point connections
        • One physical port per UNI
        • Single Ethernet Virtual Connection (EVC) per UNI
      MEN Ethernet UNI Ethernet UNI Ethernet UNI Point-to-Point EVC CE Ethernet Private Line using E-Line Service type Internet ISP POP Storage SP Ethernet UNI CE CE CE CE MEN Ethernet UNI Ethernet UNI Service Multiplexed Ethernet UNI Multiple Point-to-Point EVCs CE Ethernet Virtual Private Line using E-Line Service type
      • Ethernet Virtual Private Line - EVPL
        • Replaces Frame Relay or ATM services
        • Supports Service Multiplexed UNI ( = Multiple EVCs per UNI and port)
        • Allows single physical connection to CPE for multiple virtual connections
    14. UTRAN: Point-to-Point EVCs per Service Type
      • No EVC bundling/multiplexing
      • VLAN preservation disabled - Extra mapping efforts required
      • Operational and provisioning efforts - Scalability issues!
      Mobile radio base station Mobile radio base station Mobile radio Network control
    15. UTRAN: Rooted Multipoint EVC per Service Type
      • EVC bundling/multiplexing allowed
      • VLAN preservation enabled - Simple service mapping
      • Good QoS granularity
      • Scales better, simpler provisioning of services
      Mobile radio base station Mobile radio base station Mobile radio Network control
    16. WiMAX Forum: RAN Reference Architecture with MEN
      • BS … WiMAX radio base station
      • ASN-GW … Access Service Network Gateway
      • R6 … WiMAX system interface specification
      • MEN … Metro Ethernet network domain
      • Note: For clarity, WiMAX Forum term „BS“ is used for the CPE, although a vendor Base Station implementation may contain multiple ‚logical‘ BS.
      BS RAN-CE R6 BS RAN-CE ASN-GW RAN-CE R6 ASN MEN UNI UNI UNI
    17. MEF Mobile Backhaul Project
      • Mobile/Cellular RAN Network Use Cases
      • Technical Project Scope
      • Project Work Items and Deliverables
      • Mobile Backhaul Showcase Events
    18. Split access with legacy IF towards MEN MEN Inter-working Function(s) Inter-working Function(s) UNI UNI Legacy Network Ethernet service(s) for data traffic Real-time and sync traffic (out of scope) RAN CE (RNC) RAN CE (RBS) Mobile I/F Mobile I/F MEN … Metro Ethernet network domain RBS … Radio base station RNC … Radio network controller Off-loading of mobile (data) traffic using Ethernet transport
    19. Split access with native Ethernet towards MEN MEN Ethernet service(s) for data traffic Iub and Abis over legacy network (out of scope) Legacy Network UNI UNI RAN CE (RBS) RAN CE (RNC) MEN … Metro Ethernet network domain RBS … Radio base station RNC … Radio network controller Off-loading of mobile (data) traffic using Carrier Ethernet
    20. Carrier Ethernet for all mobile traffic (long-term target) MEN RAN CE (RNC) RAN CE (RBS) Ethernet service(s) for data traffic Real-time and sync traffic UNI UNI MEN … Metro Ethernet network domain RBS … Radio base station RNC … Radio network controller All mobile backhaul traffic is using Carrier Ethernet transport
    21. MEF Mobile Backhaul Project Scope
      • Project initiated in February 2007 by MEF technical committee vote
      • Focus on agreed mobile/cellular application use cases 1a, 1b, 2a and 2b
      • Identify the service performance attributes and how they are measured for GSM, WCDMA, CDMA2000, and WiMAX 802.16e and compare them to the current performance attributes defined in MEF 10.1
      • EVC span restricted to a single MEN domain for Phase 1 (simplicity)
      • Identify network requirements for frequency and phase synchronization
      • Provide a generic definition of a mobile inter-working function (IWF)
      • Proposed MEF Project Timeline
        • 07 Q1 – Done: MEF TC vote approved project initiation
        • 07 Q2 – Done: Use case specifications for implementation agreement (IA)
        • 07 Q3 – Initial draft of gap analysis for service attributes and parameters
        • 07 Q4 – Approved draft, first straw ballot on IA
        • 08 Q4 – Letter ballot of IA
    22. Technical Work Items of Mobile Backhaul Project
      • (1) Categorize, prioritize, adapt and define the scope of the backhaul network application use cases for each mobile network standard
        • Requires industry support from manufacturers and operators
      • (2) Time synchronization
        • Identify Carrier Ethernet network requirements for various industry packet synchronization standards and solutions
      • (3) Service performance
        • Use mobile/cellular standards requirements to define service profiles
      • (4) Fault recovery
        • Examine standards and get operators requirements for Carrier Ethernet network and link recovery mechanisms
      • (5) Project Deliverables
        • Define RAN backhaul service implementation agreements for Carrier Ethernet services for every agreed application use case of (1)

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