PRESENTATIONS IN NETWORK MANAGEMENT Network Management Functions Saad

Network Management Functions Objectives / Contents l Network Management Concept l OSI Standard Functions

Network Management Functions Management Concept: An Overview Management Station Agent Router Internet Management Protocol

Network Management Functions Management Concept: An Agent A functional unit (software) that resides in

Network Management Functions Management Concept: Structure l Centralized – Single management station l Distributed

Network Management Functions Management Concept: Structure Level (3) Main A Centralized / Distributed /

Network Management Functions OSI Standard Functions Fault Management l Performance Management l Configuration Management

Network Management Functions Fault Management: Definition The Discipline of l Detecting l Diagnosing l

Network Management Functions Fault Management: Activities Trace (Monitor) & Identify Faults (Abnormal Operation) l

Network Management Functions Fault Management: Summary Alarm (Categories / Priorities) l Response (Repair /

Network Management Functions Performance Management: Definition The Utilization of l Network Resources with The

Network Management Functions Performance Management: Activities Information Gathering – Current System (Traffic / Resources)

Network Management Functions Performance Management: Summary Evaluations of the l Behaviour & l Cost-Effectiveness

Network Management Functions Configuration Management: Definition Maintaining an Accurate Inventory of l HW /

Network Management Functions Configuration Management: Activities l Define: – Parameters that Control Network Operation

Network Management Functions Configuration Management: Summary Continuous Information Collection l Detection of Changes l

Network Management Functions Security Management: Definition Access Control to the l Network & l

Network Management Functions Security Management: Activities Access Management (Users / Use) l Detection of

Network Management Functions Accounting Management: Definition Identifying l Cost (Charges to be Paid) For

Network Management Functions Accounting Management: Activities l Set Tariff / Costing (For Use of

Network Management Functions Additional Functions Capacity Planning Management l Strategic Planning l Operations Support

Network Management Functions Capacity Planning Management l Fine-Tuning the Network / Periodic Re-Optimization (e.

Network Management Functions Strategic Planning Management l Part of “Business Planning” – New Applications

Network Management Functions Operation Supports Management l People / IT Staff (Need / Job

Network Management Functions Programmability Management Tailoring the Management System to the Unique Characteristics of

Network Management Functions Remarks l Concept: – “Operation Management” l Standard Functions: Any Support

Network Management Functions Standard Documents: General Management Framework (ISO: 7498) l Management Information Service

Network Management Functions Standard Documents: Functions ISO Network Management Functions Fault ISO: 2687 Performance

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

Network Management Functions Objectives / Contents l Network Management Concept l OSI Standard Functions l Additional Functions Saad Haj Bakry, Ph. D, CEng, FIEE 2

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

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

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

Network Management Functions Management Concept: Structure Level (3) Main A Centralized / Distributed / Hierarchical Management Principles Level (2) B Level (1) a 1 a 2 Saad Haj Bakry, Ph. D, CEng, FIEE a 3 b 1 b 2 b 3 6

Network Management Functions OSI Standard Functions Fault Management l Performance Management l Configuration Management l Security Management l Accounting Management l Saad Haj Bakry, Ph. D, CEng, FIEE 7

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

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

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

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

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

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

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

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

Network Management Functions Configuration Management: Summary Continuous Information Collection l Detection of Changes l Scheduling Resource Provisioning in Response to Changes l Saad Haj Bakry, Ph. D, CEng, FIEE 16

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

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

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

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

Network Management Functions Additional Functions Capacity Planning Management l Strategic Planning l Operations Support Management l Programmability Management l Saad Haj Bakry, Ph. D, CEng, FIEE 21

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

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

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

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

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

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

Network Management Functions Standard Documents: Functions ISO Network Management Functions Fault ISO: 2687 Performance ISO: 2673 Configuration ISO: 2686 Security ISO: 2688 Accounting ISO: 2687 Saad Haj Bakry, Ph. D, CEng, FIEE 28