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Essential Network Management Functions Overview

Learn about the key functions in network management, including fault, performance, configuration, security, and accounting management. Understand the activities, principles, and structure of network management concepts. Presented by Saad Haj Bakry, PhD, CEng, FIEE.

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Essential Network Management Functions Overview

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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

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