1. Network Management Principles and Protocols
Presented by:
Mohsen Kahani
Ferdowsi University of Mashhad
Faculty of Engineering

2. 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

3. Introduction Motivation A bit of History Definition
A Network Management System (NMS) is used to design, organize, analyze and administer computer and telecommunication networks, in order to maintain a desired level of service at all times.

4. NM Architecture

5. NM Functional Areas Configuration Management Fault Management
Performance Management
Security Management
Accounting Management

6. Configuration Management
Inventory management
Network topology services
Service-level agreement
Designing, implementing and processing trouble tickets
Order processing and provisioning
Change management
Directory services

7. Configuration Management

8. Fault Management

9. Fault Management Issues Alarm Correlation Trouble Ticketing System
Expert System Application

10. 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

11. 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

12. 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

13. NM Standards Simple Network Management Protocol OSI Model TMN Model
SNMP V1, V2, V3
OSI Model
Object-based approach
TMN Model
Just a framework for network management systems
Web-based Approach

14. 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

15. SNMP PDU’s get-request get-next-request get-response set-request trap
get-bulk-request
inform-request

16. SNMP Versions SNMP v1 SNMP v2 SNMP v3
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

17. OSI Architecture

18. TMN Base for ATM network management
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) and Network Elements(NEs) Via a Data Communications Network(DCN)
Base for ATM network management

19. TMN Architecture

20. 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

21. Thank You For Listening
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