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Network Management Principles and Protocols. Presented by: Mohsen Kahani kahani@ferdowsi.um.ac.ir Ferdowsi University of Mashhad Faculty of Engineering. Table of Contents. Introduction Network Management Functional Areas Fault Management Performance Management Configuration Management

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network management principles and protocols

Network ManagementPrinciples and Protocols

Presented by:

Mohsen Kahani

kahani@ferdowsi.um.ac.ir

Ferdowsi University of Mashhad

Faculty of Engineering

table of contents
Table of Contents
  • Introduction
  • Network Management Functional Areas
    • Fault Management
    • Performance Management
    • Configuration Management
    • Security Management
    • Accounting Management
  • Network Management Standards
    • Simple Network Management Protocol
    • OSI Model
    • Telecommunication Management Network
    • Web-based Approaches
  • Conclusion
introduction
Introduction
  • Motivation
  • A bit of History
  • Definition

ANetwork Management System (NMS) is used to design, organize, analyze and administercomputer and telecommunication networks, in order to maintain a desired level of service at all times.

nm functional areas
NM Functional Areas
  • Configuration Management
  • Fault Management
  • Performance Management
  • Security Management
  • Accounting Management
configuration management
Configuration Management
  • Inventory management
  • Network topology services
  • Service-level agreement
  • Designing, implementing and processing trouble tickets
  • Order processing and provisioning
  • Change management
  • Directory services
fault management1
Fault Management

Issues

  • Alarm Correlation
  • Trouble Ticketing System
  • Expert System Application
performance management
Performance Management
  • Definition of performance indicators
    • Service-oriented indicators
      • Availability, Response time, Accuracy
    • Efficiency-oriented indicators
      • Throughput,Utilization
  • Performance monitoring
    • Monitoring against the indicator
  • Thresholding and exception reporting
  • Analysis and tuning
  • Establishing operational standards
security management
Security Management
  • Risk Analysis
  • Protecting the Managed Objects
  • Authentication Procedures
  • Maintenance of Access Control Routines
  • Management of Keys for Encipherment
  • Maintenance of Authorization Facilities
  • Maintenace of Security Logs
  • Protecting the NMS
accounting management
Accounting Management
  • Identification of cost components
  • Establishing change-back policies
  • Definition of charge-back procesdures
  • Processing vendor bills
  • Integration of Network accounting into corporate accounting policy
nm standards
NM Standards
  • Simple Network Management Protocol
    • SNMP V1, V2, V3
  • OSI Model
    • Object-based approach
  • TMN Model
    • Just a framework for network management systems
  • Web-based Approach
slide14
SNMP
  • Management Information Base (MIB)
    • Virtual Information Store of MOs
    • Information are stored at MOs using different approaches
    • MIB II added a number of useful variables
  • Structure of Management Information (SMI)
    • Framework fot the Definition of SNMP MIBs
    • Object Information Model for Network Management
    • Formal Description of the Structure are Given Using a Subset of ASN.1
  • Abstract Syntax Notation 1 (ASN.1)
    • A Standard Object Definition Language
    • A Standard Way to Encode Objects for Transfer Over a Network
    • It’s Large,Complex,and not Especially Efficient
snmp pdu s
SNMP PDU’s
  • get-request
  • get-next-request
  • get-response
  • set-request
  • trap
  • get-bulk-request
  • inform-request
snmp versions
SNMP Versions
  • SNMP v1
    • Designed to be an interim solution
    • No security consideration
    • Not efficient
  • SNMP v2
    • Authentication of the Message Source
    • Protecting Messages from Disclosure
    • Placing Access Control on MIBs
    • Multiple Request Problem solved
    • Traps Have the Same Format as Other PDUs
    • 2 New Operations
    • Much Layers and More Complex
  • SNMP v3
    • Built Upon the Two First Versions of SNMP
    • Additional Security and Administrative Capabilities
slide18
TMN
  • An Important Framework for Management of Telecommunication Networks
  • A Host of Management Functions and Communications
    • Operation
    • Administration
    • Maintenance
    • Provision
  • Chosen By Telco’s for Managing WANs
  • Enables Communication between Operations System(OSs) andNetwork Elements(NEs)Via aData Communications Network(DCN)
  • Base for ATM network management
web based approaches
Web-based Approaches
  • Using HTTP instead of SNMP
    • Web-Based Enterprise Management (WBEM)
    • Java Management API (JMAPI)
  • Using Web as an Interface paradigm
  • Bay Networks’ Optivity Web
  • Computer Associate’s Unicenter TNG
  • WNMS
conclusion
Conclusion
  • Network management is critical for big networks
  • The principle of network management was discussed
  • Some network management standards were explained
  • Web-based management is becoming a strong player in the field

Thank You For Listening