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Network Management Functions

Network Management Functions

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Network Management Functions

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  1. Network Management Functions PRESENTATIONS IN NETWORK MANAGEMENT Saad Haj Bakry, PhD, CEng, FIEE Saad Haj Bakry, PhD, CEng, FIEE

  2. Network Management Functions Objectives / Contents • Network Management Concept • OSI Standard Functions • Additional Functions Saad Haj Bakry, PhD, CEng, FIEE

  3. Router Management Station Host Agent Agent Internet Management Protocol Host Agent Network Management Functions ManagementConcept: An Overview Saad Haj Bakry, PhD, CEng, FIEE

  4. An Agent A functional unit (software) that resides in a managed device It provides management information about the managed device It accepts instructions to configure the device A Proxy Agent An agent, but it does not reside in the managed device. Network Management Functions ManagementConcept: An Agent Saad Haj Bakry, PhD, CEng, FIEE

  5. Network Management Functions ManagementConcept: Structure • Centralized • Single management station • Distributed • A number of management stations • Distribution by “Function” • Distribution by “Geographical Area” • Hierarchical Centralized at routes / Distributed peer systems Saad Haj Bakry, PhD, CEng, FIEE

  6. Network Management Functions ManagementConcept: Structure Level (3) Main Centralized / Distributed / Hierarchical Management Principles Level (2) A B Level (1) b3 a1 a2 a3 b1 b2 Saad Haj Bakry, PhD, CEng, FIEE

  7. Network Management Functions OSI Standard Functions • Fault Management • Performance Management • Configuration Management • Security Management • Accounting Management Saad Haj Bakry, PhD, CEng, FIEE

  8. Network Management Functions Fault Management: Definition The Discipline of • Detecting • Diagnosing • Bypassing • Repairing • Reporting Network Equipment & Service Failures Saad Haj Bakry, PhD, CEng, FIEE

  9. Network Management Functions Fault Management: Activities • Trace (Monitor) & Identify Faults (Abnormal Operation) • Accept Facts &Act on Error-Detection Notification • Carry Out Sequences of Diagnostic Tests • Correct Faults • Maintain and Examine Error Logs Saad Haj Bakry, PhD, CEng, FIEE

  10. Network Management Functions Fault Management: Summary • Alarm (Categories / Priorities) • Response (Repair / Clear Alarm) • Recording (Report) Saad Haj Bakry, PhD, CEng, FIEE

  11. Network Management Functions Performance Management: Definition The Utilization of • Network Resources with The Ability to meet • User Service Level Objectives Saad Haj Bakry, PhD, CEng, FIEE

  12. Network Management Functions Performance Management: Activities • Information Gathering • Current System (Traffic / Resources) • System History (Logs) • Performance Evaluation (Analysis) For Different States / Conditions • Understanding / Reporting Saad Haj Bakry, PhD, CEng, FIEE

  13. Network Management Functions Performance Management: Summary Evaluations of the • Behaviour & • Cost-Effectiveness of Network Resources Saad Haj Bakry, PhD, CEng, FIEE

  14. Network Management Functions Configuration Management: Definition Maintaining an Accurate Inventory of • HW / SW / Communication Links (Network Resources) & the Ability to Change the Inventory in a “Smooth & Reliable” Manner in Response to Changing • Services Requirements (Changing Resources in Response to Changing Requirements ) Saad Haj Bakry, PhD, CEng, FIEE

  15. Network Management Functions Configuration Management: Activities • Define: • Parameters that Control Network Operation • Managed Objects (Names) • Collect Information on Current State • Monitor Current State Changes • Change Configuration in Response to Current State Changes Saad Haj Bakry, PhD, CEng, FIEE

  16. Network Management Functions Configuration Management: Summary • Continuous Information Collection • Detection of Changes • Scheduling Resource Provisioningin Response to Changes Saad Haj Bakry, PhD, CEng, FIEE

  17. Network Management Functions Security Management: Definition Access Control to the • Network & • its Management Systems Information Protection from • Disclosure & • Modifications Saad Haj Bakry, PhD, CEng, FIEE

  18. Network Management Functions Security Management: Activities • Access Management (Users / Use) • Detection of Attacks (Against Information) • Protection Measures (Encryption) Saad Haj Bakry, PhD, CEng, FIEE

  19. Network Management Functions Accounting Management: Definition Identifying • Cost (Charges to be Paid) For the • Use of Network Resources (By Users / Subscribers ) Saad Haj Bakry, PhD, CEng, FIEE

  20. Network Management Functions Accounting Management: Activities • Set Tariff / Costing (For Use of Resources / Services) • Accumulate Use (Traffic Information / Data Collection / Recording) • Charging / Billing (To be Paid by Subscribers ) • Accounting / Book Keeping Saad Haj Bakry, PhD, CEng, FIEE

  21. Network Management Functions Additional Functions • Capacity Planning Management • Strategic Planning • Operations Support Management • Programmability Management Saad Haj Bakry, PhD, CEng, FIEE

  22. Network Management Functions Capacity Planning Management • Fine-Tuning the Network / Periodic Re-Optimization (e.g. Adding / Re-Arranging Trunks) • Scheduled Changes: • Terminating / Avoiding Technologies • Adopting Technologies • Migration Saad Haj Bakry, PhD, CEng, FIEE

  23. Network Management Functions Strategic Planning Management • Part of “Business Planning” • New Applications / Growth • Re-Organization / Re-Engineering • Cost Estimations / Benefits • Contingency Planning • Back-Up • Disaster Recovery Saad Haj Bakry, PhD, CEng, FIEE

  24. Network Management Functions Operation Supports Management • People / IT Staff (Need / Job Description / Training / Management ) • Resources (Equipment Management…) • Maintenance (Programs / Logs / Shifts…) • Information Flow (Transactions / Interactions) Saad Haj Bakry, PhD, CEng, FIEE

  25. Network Management Functions Programmability Management Tailoring the Management System to the Unique Characteristics of the Managed Network (Customization) • System Characteristics • Reporting Capabilities / Scripts • Other Options Saad Haj Bakry, PhD, CEng, FIEE

  26. Network Management Functions Remarks • Concept: • “Operation Management” • Standard Functions: • “Operation” • Additional Functions: • Planning / Support Any Support of: • Performance • Efficiency (Cost-Effectiveness) • Quality • Reliability Saad Haj Bakry, PhD, CEng, FIEE

  27. Network Management Functions Standard Documents: General • Management Framework (ISO:7498) • Management Information Service Overview (ISO: 2683) • Structure of Management Information (ISO: 2684) Saad Haj Bakry, PhD, CEng, FIEE

  28. Network Management Functions Standard Documents: Functions Saad Haj Bakry, PhD, CEng, FIEE