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Open Management 開放式管理

Open Management 開放式管理. 陳彥錚 (Yen-Cheng Chen) 銘傳大學 資管系 http://www.im.mcu.edu.tw/~ycchen/ yencheng@mcu.edu.tw. Contents. 1. Introduction 2. Open Approaches for Management 3. Issues in Open Management 4. Conclusion. 1. Introduction. Open Management

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Open Management 開放式管理

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  1. Open Management開放式管理 陳彥錚(Yen-Cheng Chen) 銘傳大學 資管系 http://www.im.mcu.edu.tw/~ycchen/ yencheng@mcu.edu.tw

  2. Contents • 1. Introduction • 2. Open Approaches for Management • 3. Issues in Open Management • 4. Conclusion

  3. 1. Introduction • Open Management • Automated Network and Systems Management in a Non-Proprietary, Widely Accepted Standard Fashion. • OSI Management (ISO/ITU-T). • Internet Management. • Not Limited to CMIP and SNMP.

  4. Why Open Management • Interoperability • Ability of individual components within an open management environment to exchange information (i.e., interworking) • Portability • Ability to easily place management functions in various platforms. • Integration • Integration of lower-level, individual (e.g. element management) systems to achieve higher-level, integrated management (e.g., service management).

  5. Manager-Agent Model Management Operation R MA MO Response Event Manager Agent Communication Protocols Communication Protocols Network Legend： MA: Manager Applications MO: Managed Objects R: Real Resource

  6. Management Components • Manager • Agent • Management Communication Protocol • Management Information Base (MIB) • Collection of Managed Objects

  7. ORB ORB Object-Oriented Management Model • Objects: Application, Service, MO, ... • ORB: Object Request Broker

  8. 2. Open Approaches for Management • Manager-Agent Model • ISO/ITU-T OSI Management (CMIP) • IETF Internet Management (SNMP) • X/Open XMP/XOM API • Object-Oriented Management Model • OMG's CORBA • Specific Management Domain • ITU-T TMN  OSF's DME • DMTF's DMI

  9. Legends • XMP: X/Open Management Protocol • XOM: X/Open OSI-Abstract Data Manipulation • API: Applications Programming Interface • OMG: Object Management Group • CORBA: Common Object Request Broker Architecture • TMN: Telecommunications Management Network • OSF: Open Systems Foundation • DME: Distributed Management Environment • DMTF: Desktop Management Task Force • DMI: Desktop Management Interface

  10. SMI/GDMO SMFs MAs MO . . . . . . SMASE SMASE SMASE SMASE CMISE CMISE ACSE ROSE ACSE ROSE OSI Protocol Stack OSI Protocol Stack CMIS/P Link Link Network 2.1 OSI Management Common Management Information Protocol

  11. SMFs Systems Management Functions Applications SMFAs CM FM PM SM AM State Management Attributes for Repre- senting Relationships Object Management Event Reporting Management Log Control Alarm Reporting Management Security Audit Trail Security Alarm Reporting Objects and Attributes for Access Control SMFs Accounting Metering Test Management Workload Monitoring Summarization CMIS Get Set Action Cancel Get Event Report Delete Create Lower Layer Services

  12. 2.2 Internet Management Simple Network Management Protocol SNMP SMI Set/Get/GetNext Req. R MA MO Get Resp. Trap Manager Agent UDP/IP UDP/IP IP Network (Internet)

  13. What's New in SNMPv2 • No more Trap PDU, 3 New PDUs: • getBulkReq, InformReq, SNMPv2-Trap • Added Security • 18 Error Status Values • SNMPv2 SMI / SNMPv2 MIB • M-to-M Communications • Table Operations • ...

  14. CMIP vs. SNMP CMIP SNMP GDMO Internet SMI Object-Oriented Object-Based 7 Service Primitives 5 Messages Connection-Oriented Connectionless Event-Oriented Polling Scoping/Filtering GetNext Global Naming (X.500) Local Naming (OID) Security Mechanism Community Name OSI Seven Layers Internet TCP/IP

  15. 2.3 X/Open XMP/XOM • X/Open = Portability • XMP • Provide CMIS and SNMP Service API. • Recognizes Both GDMO and SNMP MOs. • XOM • Maps ASN.1 data to a uniform data structure "om_object". • Provide API for the manipulation of om_objects. • Base for XMP Interface.

  16. Other Package CMIS Package SNMP Package DMI Package XMP/XOM Management Program XOM API XMP API Management Service Package Management Content Package XOM Package Common Package . . . OM WORKSPACE

  17. 2.4 OMG's CORBA Common Object Request Broker Architecture • Object Management Architecture Application Objects Common Facilities Object Request Broker Object Services

  18. CORBA

  19. TMN Operations System Operations System Operations System Data Communication Network Work Station Transmission Systems Transmission System Exchange Exchange Exchange Telecommunication Network 2.5 ITU-T TMN Telecommunications Management Network

  20. TMN OS X/F/Q3 X F DCN WS Q3/F MD Q3 Q3 QX DCN QX QX QA NE NE QA TMN Physical Architecture

  21. Telecommunications Management Services and Components . . . Management of Transmission Paths Management of Switched Network Management of Customer Services Telecommunications Management Functions . . . Fault correction Restoration Provisioning Monitoring Verification OSI Systems Management Functions . . . Log Control SMF Event Report SMF Object SMF Accounting Meter SMF ACSE + ROSE + CMISE TMN Services and Functions

  22. 2.6 OSF DME Distributed Management Environment • Network Management Option • Use IRB to Support XMP (CMIP and SNMP). • Object Management Framework • Extend CORBA to provide MRB. (I4DL) • Use DCE's RPC for Broker Communications. • Distributed Services • Event Service, Print Service, Software Distributed Service, License Management Service, Subsystem Management Service, PC Service. IRB: Instrumentation Request Broker MRB: Management Request Broker

  23. MIF DataBase 2.7 DMTF DMI Desktop Management Interface Management Applications Management Interface (MI) Service Layer (SL) Component Interface (CI) Hardware/Software Components MIF: Management Information Format

  24. Component Interface Service Layer Request/Confirms Indications MIF Access Management Interface MIF Set Synchronization and Flow Control MIF Install MIF DataBase Response/Confirms Events/Response Command Processing Event Processing MIF Processing

  25. 3. Issues in Open Management • Standardization is always in progress. • Options in standards will be an interoperability barrier. • Interoperability Testing. • Interworking among standards. • XMP/XOM API Complexity. • Coexistence with Legacy systems. • ...

  26. Potential Solutions • International Standard Profiles (ISPs). • Agreements and Specifications of NM Forum, OMG, X/Open, OSF, ... • IIMC (ISO/ITU-T and Internet Management Coexistence) • A New CMIS API. • Open Management Edge (OME). • Follow OMNIPoint

  27. 4. Conclusion • Open management is a big trend. • From element management to service management. • OSI management systems emerge. • TMN: a focal point • Follow, Join, or Lead?

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