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

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

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

Management Concept: An Agent Network Management Functions Management Concept: An Agent 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. Saad Haj Bakry, PhD, CEng, FIEE

Management Concept: Structure Network Management Functions Management Concept: 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

Management Concept: Structure Network Management Functions Management Concept: 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

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

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

Fault Management: Activities 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

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

Performance Management: Definition 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

Performance Management: Activities 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

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

Configuration Management: Definition 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

Configuration Management: Activities 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

Configuration Management: Summary Network Management Functions Configuration Management: Summary Continuous Information Collection Detection of Changes Scheduling Resource Provisioning in Response to Changes Saad Haj Bakry, PhD, CEng, FIEE

Security Management: Definition 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

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

Accounting Management: Definition 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

Accounting Management: Activities 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

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

Capacity Planning Management 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

Strategic Planning Management 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

Operation Supports Management 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

Programmability Management 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

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

Standard Documents: General 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

Standard Documents: Functions Network Management Functions Standard Documents: Functions ISO Network Management Functions Fault ISO: 2687 Performance ISO: 2673 Configuration ISO: 2686 Security ISO: 2688 Accounting Saad Haj Bakry, PhD, CEng, FIEE