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  • Traditional Private Lease Line and Private Virtual Connection (PVC) are provided through T1/T3 or SONET/SHD access loops. They are complicated, costly, somewhat slow and not very scalable. They do offer very consistent and reliable performances, and have built-in OAM for fault detection and management.
  • Traditional Private Lease Line and Private Virtual Connection (PVC) are provided through T1/T3 or SONET/SHD access loops. They are complicated, costly, somewhat slow and not very scalable. They do offer very consistent and reliable performances, and have built-in OAM for fault detection and management.
  • Tom Franklin Leading Asking for continued and additional participant; perhaps sub-team leader Input of parameters by August 17; meeting by 8/24 Not limited to telecom, Wholesale arm of Cable COs Processes include not only ordering, also monitoring and maint

MainEnd-to-End_OAM_E-NNI 2.0.ppt MainEnd-to-End_OAM_E-NNI 2.0.ppt Presentation Transcript

  • Carrier Ethernet: User to Network Interface (UNI) Network-to-Network Interfaces (E-NNI) and End-to-End OAM Arie Goldberg, CEO, Omnitron System Technology, Inc. Board Member, Metro Ethernet Forum
  • Agenda
    • Carrier Ethernet Services and Challenges
      • Carrier Ethernet (CE) MEF defined Services
      • CE Service Provider challenges
    • Ethernet Services Network Basics
      • Demarcation Points - Definition of UNI and E-NNI
      • Anatomy of Ethernet Service
    • Link and Service OAM
      • OAM Hierarchies, Components and Protocols
      • Link and Service OAMs
    • Wholesale Logistics
      • Global Services Directory
      • Wholesale Access Template
  • Carrier Ethernet Services and Challenges
  • Carrier Ethernet’s “Evolution”
    • Basic Ethernet Access Services definition
    • From Metro to Regional Services
    • From Regional to National Services
    • From National to International / Global Services
    • From Intra-Provider (In-franchise/IF) to Inter-Provider (out-of-franchise/OOF) Services
    1999, Europe: First Metro Ethernet LAN WAN OOF WAN MAN
  • Demand Drivers – Services and Bandwidth On-line Government Education Remote learning Healthcare date & Tele-medicine Commerce, On-line Business, Tele-workers, On-line Financial Services, On-line NEW tools! Apps! Backhaul Apps $$ $$ $$ $$ $$ $$ $$ $$ VoIP VoD IPTV E-Line E-LAN) Low CAPEX Low OPEX Low Cost to Subscribers
  • The MEF 5-Attributes of Carrier Ethernet
    • 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
  • MEF defined Basic CE Services E-LINE EPL: Private Line EVPL: Virtual Private Line E-LAN EP-LAN: Private LAN EVP-LAN: Virtual Private LAN Point to Point Site2Site L2 VPNs E-TREE EP-Tree: Private Tree EVP-Tree: Virtual Private Tree Point to Multi-Point Broadcasting Services Triple Play backhaul Mobile backhaul Multi-Point to Multi-Point Multi-Site L2 VPNs Transparent LANs Point-to-Point EVC CPE UNI UNI CPE CPE UNI CPE UNI Multipoint EVC Rooted Multipoint EVC CPE UNI CPE UNI CPE UNI
  • Global Services crossing carrier boundaries Carrier A Service Provider Carrier C Access Provider Carrier B Transport Provider E-NNI Multi-point to Multi-point EVC UNI UNI UNI UNI UNI E-NNI
  • Some of the Challenges of CE Service Providers
    • Turn-up services quickly and efficiently – be competitive, get revenues ASAP
    • On/Off-Net services – meet global customer needs - buy and sell / wholesale with other providers - generate revenue on and off-net
    • Reliability/Up-time (99.999%) - enable high value services with SLAs for higher rate revenues
    • Quality – build customer satisfaction – increase customer retention – keep revenues coming
    • Efficient operation - keep OpEx costs down – be competitive and profitable
  • Carrier Ethernet Network Basics
  • Carrier Ethernet Demarcation Points
    • UNI - User-to-Network Interface
      • Demarcation point between
        • Ethernet Service Provider/Access Network Provider and Subscriber
      • Ethernet Service / Ethernet Virtual Connection (EVC) starting / ending point
    • E-NNI - External Network-to-Network Interface
      • Demarcation point between:
        • Ethernet Service Provider and Access Network Provider
        • Ethernet Access Provider and Transport Network Provider
    • EVC - Ethernet Virtual Connection
      • Ethernet service connecting between 2 or more UNIs
    E-NNI Access Network Provider Transport Network Provider Ethernet Service Provider Subscriber Subscriber E-NNI E-NNI UNI UNI EVC
  • Carrier Ethernet Service
    • Access Network Provider
      • Provides CEVC 1 connection between Subscriber UNI 1 (RUNI) and VUNI 1 at E-NNI 1 with Transport Network Provider
    • Transport Network Provider
      • Provides CEVC 2 connection between E-NNI 1 (VUNI 2 ) and E-NNI 2 (VUNI 3 ) with Ethernet Service Provider
    • Ethernet Service Provider
      • Provides connection to E-NNI 2 with Transport Network Provider
      • Provides End-to-End Ethernet Service to Subscriber
        • Provides EVC between UNI 1 and UNI 2
    E-NNI Transport Network Provider Ethernet Service Provider Access Network Provider RUNI VUNI 1 VUNI 2 and VUNI 3 Subscriber Subscriber UNI 2 UNI 1 Transit Tunnel Terminating Tunnel EVC E-NNI 1 E-NNI 2 CEVC 1 CEVC 2
  • Network Interface Device (NID)
    • A device that provides the point of demarcation between an operator ans a subscriber
    • UNI-N functions are partitioned between the NID and the Network Edge device
    • Provides the physical interface to the subscriber (fiber, copper)
    • Owned by the Operator / Service Provider
    • managed by Operator / Service Provider
    • Provides fault and performance management for E2E services
    • Complex device
    Service Provider Network Operator Network E-NNI UNI UNI CE CE NID NID
  • Global Services crossing carrier boundaries Challenge: How to install quickly, run reliably, operate efficiently and deliver SLA ============================================= $$ / €€ /££ Carrier A Service Provider Carrier C Access Provider Carrier B Transport Provider E-NNI Multi-point to Multi-point EVC UNI UNI UNI UNI UNI E-NNI
  • Link and Service OAMs
  • OAM Layer Components
    • Each layer supports OAM capabilities independently
    • OAMs interoperate
    • Component responsibilities are complementary
    E2E Performance Monitoring E2E Fault Monitoring P2P Link Fault Management
  • Link Fault Management OAM
    • Link OAM - IEEE 802.3ah – Per link (point-to-point):
      • Link monitoring -- Remote loopback
      • Remote failure indication -- Loopback Control
      • Good for single links, but does not monitor across EVC
    802.3ah 802.3ah 802.3ah 802.3ah 802.3ah 802.3ah 802.3ah 802.3ah 802.3ah Ethernet Link Fault Management performed by Carrier Ethernet network elements and NIDs NID NID UNI UNI E-NNI
  • E2E Service OAM – Maintenance Associations
    • Maintenance Association (MA) – Boundaries of an Administrator’s scope of monitoring part of the network
    • Maintenance Domain (MD) – A level of monitoring within the hierarchy
    • Maintenance End Points (MEP) – End Points of the MA or MD
    • Maintenance Intermediate Points (MIP) – Intermediate Points within MA or MD
  • E2E Service OAM - Hierarchical Domains
    • A flat network is difficult to manage and define accountabilities
    • Hierarchical Maintenance Domains defines OAM Flows & OAM responsibilities
    Network OAM Service OAM Customer Domain Provider Domain Operator Domain Operator Domain Customer Customer Service Provider UNI UNI E-NNI
  • Ethernet Service Connectivity Fault Management
    • IEEE 802.1ag for EVC Connectivity Fault Management
      • For Protection/Restoration
        • Connectivity Check Messages (CCMs) for heartbeats
      • For diagnostic purposes
        • Connectivity Check (Layer 2 Ping), Link Trace, Loopbacks
    • CCMs initiated between:
      • Management Endpoints (MEPs / UNIs)
      • Management Intermediate Points (MIPs / NNIs)
      • Management Endpoints and Intermediate Points (UNI-NNI)
    Connectivity Fault Management provided by Carrier Ethernet network elements and NIDs
  • Ethernet Service Continuity Check Access Network Metro Aggregation Network Access Network IP/MPLS Core Network Metro Aggregation Network Maintenance Association (MA) MEP#1 MEP #2 MIP MIP MEP #2 Report on CC fault if no CCMs are received from MEP #1 for 30ms MIP MIP MIP MIP UNI UNI MEP #2 CCMs sent every 10ms Check for CCMs received from MEP #1 Ethernet continuity check is analogous to IP’s Ping but does much more MEP #1 No CCMs received from MEP #2 within 30ms (3 x 10ms) MEP #1 Send CCMs with RDI flag set MEP #2 Remote alarm detected by received RDI Report alarm to management system MEP #2 Initiate protection switchover MEP #1 CCMs sent every 10ms on working/protect paths Check for CCMs received from MEP #2 on working/protect paths MEP #1 Report CC fault to management system
  • Ethernet Link Trace Access Network Metro Aggregation Network Access Network IP/MPLS Core Network Metro Aggregation Network Link trace Reply UNI UNI Ethernet Link Trace is analogous to IP’s Traceroute MEP MEP MIP MIP MIP MIP
  • Service Performance Management
    • Key Metrics
      • Frame/Packet Delay – Latency (e.g. UNI/UNI 30ms@99.9%@15min)
      • Frame/Packet Delay Variation – Jitter (e.g. 10ms@99.9%@15min)
      • Frame/Packet Loss Ratio (e.g. CIR FL=1%@15min)
      • Service Availability (e.g. 99.99%@30days)
    • ITU-T has defined measurement framework/metrics for items 1-3
      • IP packet-based measurements
      • ITU-T Y.1731 defines how to use 802.1ag to measure performance
    • MEF has defined measurement framework for items 1-4
      • Ethernet Frame-based measurements
      • MEF 10.1 defines formulae for metrics calculation
    The combination of IEEE 802.1ag, ITU-T Y.1731 and MEF 10.1 define Ethernet service performance
  • Interfaces and Ethernet Virtual Circuits Point-to-Point EVC Carrier A E-NNI UNI Multi-point to Multi-point EVC UNI UNI Point-to-Point EVC UNI UNI UNI Link OAM 802.3ah E2E Service OAM: Fault-802.1ag Perform-Y.1731 Carrier B
  • Summary
    • New Protocol Solutions
      • Point-to-Point Link OAM (802.3ah)
      • End-to-End Service Connectivity Fault OAM (802.1ag)
      • End-to-End Service Performance Monitoring OAM (Y.1731)
    • Enable quick turn-up – Acct acquisition/revenue
    • Increase reliability/up-time – Acct retention/revenue
    • Enables SLA commitments – Keep revenue
    • Enable efficient service operation / maintenance (man/machine/time/energy) – reduce OPEX
  • Wholesale Logistics
  • Global Services Directory Summary
    • Business Users
      • Find Carrier Ethernet services anywhere in the world.
    • Service Providers
      • Find a partner to build a global Carrier Ethernet service.
    • Featuring
      • Free access to interactive map driven system
      • Latest info on available services globally, locally
      • http://www.metroethernetforum.org/gsd
  • Global Services Directory Summary
    • Business Users
      • Find Carrier Ethernet services anywhere in the world.
    • Service Providers
      • Find a partner to build a global Carrier Ethernet service.
    • Featuring
      • Free access to interactive map driven system
      • Latest info on available services globally, locally
      • http://www.metroethernetforum.org/gsd
  • Global Services Directory Project Review
    • MEF worked with Heavy Reading to develop up-to-date database of Ethernet Service Providers worldwide
      • Identifies Carrier Ethernet services by city, country, and service application
      • Four phase project to:
        • Cover MEF Service Providers with basic service and location information
        • Add more service providers and allow real time updates via Service Provider back-end
        • Provide in-depth service information,
        • Non-MEF Service Providers (TBD)
  • Service Provider Participants Service Provider and Cable MSO Members
    • Sprint
    • Suddenlink
    • Swisscom
    • Symphony Communication
    • TATA Communications
    • Telecom Italia
    • Telekom Malaysia
    • Teliasonera AB
    • Telus
    • Time Warner Cable
    • Time Warner Telecom
    • T-Systems
    • Uecomm
    • Verizon Business
    • XO Communications
    • KDDI R&D Laboratories
    • KPN Telecom
    • Level 3 Communications
    • ntl: Telewest
    • NTT Advanced Technology
    • Optimum Lightpath
    • Orange Business Services
    • PCCW
    • PT Inovação
    • PT Prime
    • Qwest Communications
    • RCN Business Solutions
    • Reliance Communications
    • Shanghai Information Network
    • Singapore Telecom
    • AboveNet
    • Alpheus Communications
    • AT&T
    • Bell Canada
    • Bright House Networks
    • British Telecom
    • Cable & Wireless
    • Charter Communications
    • China Telecom
    • Cincinnati Bell
    • Colt
    • Comcast
    • Cox Business
    • Demand Broadband
    • Embarq
    • IPC
  • Wholesale Access Interconnection Group Charter: Define Standard template and procedure for ordering wholesale Ethernet services between service providers Objectives: To enable efficient communication of network capabilities between Service Providers and prospective wholesale partners
  • WAIG Template
    • Physical Customer Interfaces
      • For different services (UNI and NNI) provide physical interface options (fiber, copper, rates etc.)
    • Path Diversity and Protection
      • For topology and protocol options (xSTP etc.)
    • Ethernet Frames
      • Frame type and size options
      • Service multiplexing (EVCs etc.) options
    • Performance and Class of Service (CoS) Requirements
      • CoS options
      • Performance per CoS options
    • Service Technology Questions
      • Service / BW Profile options
      • Frame tagging options
      • Miscellaneous service (no other place) questions
  • WAIG Template (cont.)
    • Network Management
      • Maintenance Points for Fault, Performance OAM options
      • OAM Protocol options
      • Administrative options
      • Wholesale partner administrative and logistical options
    • Performance and SLA Reporting Capability
      • On and Off-line performance reporting options
    • Security
      • Threat detection and defense options
    • Connection Admission Control (CAC) Rules
      • CoS traffic handling
    • EVC and NNI Speeds
      • Throughput information
  • WAIG Status
    • Draft is being posted for MEF membership review
    • “ Trial run” Access Providers to fill-out the draft template – expect comments
    • Implement comments
    • Initial publication – Q4 (Oct. 08) MEF meeting (Malta)
    • Early adaptors can start using Template now
  • Carrier Ethernet’s “Evolution” LAN WAN OOF WAN MAN Finish E-NNI Finish NID Refine GS Directory – add SPs Release WAIG Template 2008, Metro Ethernet We are here
  • Thank You Presentations are available at www.metroethernetforum.org