1 / 33

MEF Technical Activities

MEF Technical Activities. Paul Bottorff, Co-Chair MEF Technical Committee. What is the MEF. The Metro Ethernet Forum is a non-profit organization dedicated to accelerating the adoption of optical Ethernet as the technology of choice in metro networks worldwide.

arin
Download Presentation

MEF Technical Activities

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MEF Technical Activities Paul Bottorff, Co-Chair MEF Technical Committee

  2. What is the MEF • The Metro Ethernet Forum is a non-profit organization dedicated to accelerating the adoption of optical Ethernet as the technology of choice in metro networks worldwide. • The Forum is comprised of leading service providers, major incumbent local exchange carriers, top network equipment vendors and other prominent networking companies that share an interest in metro Ethernet. It has 60 members as of February, 2002.

  3. MEF Key Objectives • Build consensus and unite service providers, equipment vendors, end customers on optical Ethernet • Facilitate implementation of optical Ethernet standards to allow delivery of Ethernet services and make Ethernet-based metro transport networks carrier-class • Enhance worldwide awareness of the benefits of optical Ethernet services and Ethernet-based metro transport networks • Enable Ethernet applications and services, building on the physical transportspecified by e.g. 10GEA

  4. MEF Structure

  5. MEF: Diverse Leadership The MEF Board of Directors is comprised of representatives from: • BellSouth • SBC • France Telecom • Rockefeller Group Telecommunications Services • Agilent Technologies • Procket Networks • Atrica • Nortel Networks • Alcatel For more information about the MEF leadership please visit http://www.MetroEthernetForum.org/

  6. Marketing Committee Structure Marketing Committee Messaging Collateral Sub-committee Events Sub-committee Economic Analysis Sub-committee • Marketing committee is divided into three areas

  7. Technical Committee Structure Technical Committee All Members Areas Architecture Sub-committee Services Sub-committee Protocol & Transport Sub-committee Management Sub-committee Test Methods Sub-committee • Technical committee is divided into five specialization areas

  8. IEEE802 MEF Approach to Technical Standards Use existing Standards and only fill the technical gaps for Metro Ethernet OIF ITU IETF MPLSForum Etc. Etc. 10 GEAlliance Etc. Etc.

  9. Document Types • Implementation Agreements • Building consensus on existing standards • Test Procedures • Promoting/Performing Interoperability testing • Position Statements • Proposing work for existing standards bodies • Technical Specifications • Developing new standards within MEF

  10. TC Work Is Divided By Specialization Area Technical Committee All Members Areas Architecture Sub-committee Services Sub-committee Protocol & Transport Sub-committee Management Sub-committee Test Methods Sub-committee

  11. Architecture • Metro Ethernet Network (MEN) Reference Model • User Network Interface (UNI) • Network to Network Interfaces (NNIs) • MEN Framework • defines the modeling conventions for the functional elements which compose a MEN • Provides common terminology for all MEF technical documents • User Network Interface (UNI) • The demark for customer or subscriber attachment • Ethernet Interworking NNI (EI-NNI) • Interface between autonomous systems

  12. Services • Ethernet Services Model • Ethernet Definitions • Ethernet Line Services (ELINE) • Ethernet LAN Services (ELAN) • Circuit Emulation Service (CES) • Bandwidth Profiles Parameters • Committed Information Rate (CIR) • Peak Information Rate (PIR)

  13. Transport and Protocol • Protection • Protection Framework describes a model and framework to deliver network protection schemes • EMF • Ethernet Multiplexor provides a subset of the functions under discussion at IEEE 802.1 Provider Bridges • EoS • Agreements for transport of Ethernet over Sonet

  14. Management • Element Management System • defines the requirements for the central systems which manage the network elements of a MEN • EMS/NMS Information Model • defines a vendor independent data model for information exchanged between the service provider’s NMS and the MEN EMS • OAM Management • defines end-to-end OAM for the service assurance

  15. MEF Technical Committee Dash Board MEF Technical Committee Conformance & Performance Test Area Process Ad-Hoc TC Rules and Procedures Management Area Architecture Area Protocol & Transport Area Services Area MEN Architecture QOS QOS Framework d2 OAM&P MEN Architecture FW Part 1 d1 MEN Architecture FW Part 2 MEN Architecture FW part 3 MEN Architecture FW part 4 MEN Architecture FW part 5 Ethernet Services Model d4 Ethernet Services Protection Ethernet Services OAM d4 Protection Requirements d3 Ethernet Services Definitions d2 Protection Framework d3 TM EMS Mgmt UNI UNI Requirements d2 MPLS Protection IA d1 Traffic Performance Parameters d3 EMS Requirements d1 EoS UNI Framework d3 EoS IA d1 CES UNI PVC IA d1 EMS-NMS If NI-NNI CES Requirements d2 EI-NNI EMS-NMS Information Model d3 MPLS NI-NNI D1 EI-NNI TS d1 Legend EMF Gray Color = Not Approved Project Orange Color = Approved Project Blue Color = Draft Status Green Color = Approved Standard Red Color = Sent to Ballot EMF TS d1

  16. 16 Approved Drafts

  17. Basic Metro Ethernet Model • Ethernet Service provided by Metro Ethernet Network (MEN) • Customer Equipment (CE) attaches to MEN at User-Network Interface (UNI) using 10, 100, 1000 Mbps Ethernet interface.

  18. MEN Layered Network Model • Ethernet Services layer (ETH) • uses services from its Transport Layer(s) • provides services to its Application Services Layer(s) Application Services Layer (s) (VoIP, IP, MPLS, PDH, ...) Ethernet Services Layer (Ethernet) Transport Layer (s) Domain (802.3 PHY, SDH/SONET, MPLS, OTN, ...)

  19. MEF External Reference Points Public Service Networks Internet, FR, etc. UNI Service Interworking SI-NNI Metro Ethernet Network (MEN) Autonomy X Metro Ethernet Network (MEN) Autonomy Y Subscriber Intercarrier Network Ethernet Interworking EI-NNI Network Interworking NI-NNI Transport Network Metro Ethernet Network (MEN) Autonomy X

  20. MEF External Reference Point • User Network Interface (UNI) • Reference point between Metro Ethernet Network (MEN) and directly/virtualized attached interfaces of customer equipment. • Interfaces between MEN and customer equipment. • Is the subscriber demark point • Service Interworking NNI (SI-NNI) • Reference point between MEN andother public service networks (IP). • Interfaces between MEN and other public services networks (ex: ATM, FR, T1/T3, IP-Sec, etc).

  21. MEF External Reference Point (Cont.) • Ethernet Interworking NNI (EI-NNI) • Reference point between MENs in different autonomys • Network Interworking NNI (NI-NNI) • Reference point between MENs in same autonomy. • Interface between MEN and other public transport networks (GE, SDH/SONET, ATM, RPR, etc).

  22. Services Definition CustomerEquipment (CE) User NetworkInterface(UNI) MetroEthernetNetwork Service ProviderResponsibility Service Model: Services described as seen by CE, UNI to UNI

  23. Ethernet Virtual Connection Types (EVC) Point-to-Point Multipoint-to-Multipoint Leaf Root Leaf Point-to-Multipoint

  24. Some Service Features Bandwidth Profile: Defines the way in which less than the full physical bandwidth of UNI can utilized by the subscriber. Basis of the “pay for the bandwidth that you need” capability of an Ethernet Service. Service Multiplexing: Multiple EVCs accessible at a single UNI. Reach multiple destinations across the MEN via a single UNI, e.g., a Gigabit Ethernet UNI. Interworking Function: Non-Ethernet services via an Interworking Function (IWF), e.g., TDM over Ethernet IWF IWF

  25. Ethernet Line Service (ELINE) ELINE • ELINE service is Point-to-Point and may describe both Private Lines and Virtual Private Lines • May build a Frame Relay like service

  26. ELINE Service Multiplexing • In this example a single site has multiple ELINE connections to other sites multiplexed over a single UNI.

  27. Ethernet LAN Service (ELAN) ELAN • Service is Multipoint-to-Multipoint fully connected

  28. Protection Model Multiple levels of service resiliency enabled by flexible protection mechanism Application Protection Constraint Policy MEF Protection Mechanism End-to-End PathProtection Aggregated Line andNode Protection Topology Transport

  29. Aggregated Line and Node Protection DetourPath NetworkElement IngressNetworkElement NetworkElement NetworkElement EgressNetworkElement PrimaryPath NetworkElement DetourPath

  30. End-to-End Path Protection NetworkElement IngressNetworkElement NetworkElement NetworkElement EgressNetworkElement PrimaryPath NetworkElement SecondaryPath NetworkElement NetworkElement

  31. End-to-end OAM Customer Edge Customer Edge LMI Ethernet Virtual Connection (EVC) UNI LMI Ethernet Access Network Ethernet Access Network Provider Edge Provider Edge Metro Ethernet Network Internet Access Metro Ethernet Network ISP Router

  32. OAM Management • Availability • Status Monitoring • Scalability • Extensibility • Security • Tunnel and Transport Independence • Layer 3 Independence

  33. Summary • MEF is working to fill the gaps between existing standards needed to standardize complete MEN systems. • Technical work is focused on • Customer Service Specifications • User Interface Definition • Network To Network Interface Definitions • Transport Network Features for Protection, QoS, and EoS • End-to-end Management • Network Element Management

More Related