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8/2/2019 Basic Network Management Functions
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Saad Haj Bakry, PhD, CEng, FIEE 1
Network Management
Functions
Saad Haj Bakry, PhD, CEng, FIEE
PRESENTATIONS IN NETWORK MANAGEMENT
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Saad Haj Bakry, PhD, CEng, FIEE 2
Objectives / Contents
Network Management Concept
OSI Standard Functions
Additional Functions
Network Management Functions
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Saad Haj Bakry, PhD, CEng, FIEE 3
ManagementConcept: An Overview
Management Station RouterAgent
Host
Agent
Host
Agent
Management Protocol
Internet
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ManagementConcept: An Agent
An Agent A functional unit
(software) that resides ina managed device
It provides managementinformation about the
managed device It accepts instructions to
configure the device
A Proxy AgentAn agent, but it
does not reside in
the managed
device.
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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
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ManagementConcept: Structure
a1 a2 a3 b1 b2 b3
A B
Main
Level (3)
Level (2)
Level (1)
Centralized /Distributed /HierarchicalManagementPrinciples
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OSI Standard Functions
Fault Management
Performance Management Configuration Management
Security Management
Accounting Management
Network Management Functions
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Fault Management: Definition
The Discipline of
Detecting
Diagnosing
Bypassing
Repairing
ReportingNetwork Equipment & Service Failures
Network Management Functions
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Fault Management: Activities
Trace (Monitor) & Identify Faults(Abnormal Operation)
Accept Facts &Act on Error-DetectionNotification
Carry Out Sequences ofDiagnostic Tests
Correct Faults Maintain and Examine Error Logs
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Fault Management: Summary
Alarm
(Categories / Priorities) Response
(Repair / Clear Alarm)
Recording(Report)
Network Management Functions
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Performance Management: Definition
The Utilization of
Network Resources
with
The Ability to meet
User Service Level Objectives
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Performance Management: Activities
Information Gathering
Current System (Traffic / Resources)
System History (Logs)
Performance Evaluation (Analysis)
For Different States / Conditions
Understanding / Reporting
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Performance Management: Summary
Evaluations of the Behaviour &
Cost-Effectiveness
of NetworkResources
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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 )
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Configuration Management: Activities
Define:
Parameters that Control NetworkOperation
Managed Objects (Names)
Collect Information on Current State
Monitor Current State Changes
Change Configuration in Response toCurrent State Changes
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Configuration Management: Summary
Continuous Information Collection Detection ofChanges
Scheduling Resource Provisioningin
Response to Changes
Network Management Functions
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Security Management: Definition
Access Control to the
Network & its Management Systems
Information Protection from
Disclosure &
Modifications
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Security Management: Activities
Access Management
(Users / Use) Detection of Attacks
(Against Information)
Protection Measures(Encryption)
Network Management Functions
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Accounting Management: Definition
Identifying
Cost(Charges to be Paid)
For the
Use of Network Resources(By Users / Subscribers )
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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
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Additional Functions
Capacity Planning Management
Strategic Planning
Operations Support Management
Programmability Management
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Capacity Planning Management
Fine-Tuning the Network /
Periodic Re-Optimization(e.g. Adding / Re-Arranging Trunks)
Scheduled Changes:
Terminating / Avoiding Technologies
Adopting Technologies
Migration
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Strategic Planning Management
Part of Business Planning
New Applications / GrowthRe-Organization / Re-Engineering
Cost Estimations / Benefits
Contingency PlanningBack-Up
Disaster Recovery
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Operation Supports Management
People / IT Staff
(Need / Job Description / Training / Management )
Resources (Equipment Management)
Maintenance (Programs / Logs / Shifts)
Information Flow (Transactions / Interactions)
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Programmability Management
Tailoring the Management System to the
Unique Characteristics of the ManagedNetwork (Customization)
System Characteristics
Reporting Capabilities / Scripts Other Options
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Remarks
Concept:
Operation Management Standard Functions:
Operation
Additional Functions:Planning / Support
Any Support of:
Performance
Efficiency
(Cost-Effectiveness)
Quality
Reliability
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Standard Documents: General
Management Framework
(ISO:7498)
Management Information Service Overview(ISO: 2683)
Structure of Management Information(ISO: 2684)
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Standard Documents: Functions
ISO Network Management Functions
Fault ISO: 2687
Performance ISO: 2673
Configuration ISO: 2686
Security ISO: 2688
Accounting ISO: 2687
Network Management Functions