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An overview of network management, including its role in maintaining network performance, the concept of a service level agreement (sla), and the importance of fault, configuration, accounting, performance, and security management. It also covers internal and external security threats and the history and principles of telecommunications management networks (tmn).
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It keeps the network operating at peak performance
It provides easy alternative routing
It serves as the front-line command post for network survivability
It gathers and files data on network usage
It performs a configuration management function
It also performs an administrative management function
It maintains and enforces network security
SLA is a negotiated agreement, between a service provider and a customer, designed to create a common understanding about thequality of services, its priorities and responsibilities. •
Reliability, e.g.: Service availability, uptime, loss, mean time between failure •
Responsiveness,
e.g.:
round-trip
delay,
processing
delay,
response time. •
Time frame for response and problem solution
Credits, charges, or other consequences in case of not meeting the SLA obligations
NETWORK
MANAGEMENT
(Cont..)
Fault Management emphasized of detection, analysis and correction of faults/errors that encounter in network •
Monitoring of error indication and generating alarms to system administrator. •
Fault detection and alarming
Automate service recovery
Fault positioning
NETWORK
MANAGEMENT
(Cont..)
ACCOUNTING MANAGEMENT •
Accounting Management is bunch of functions that governs the overall measured costs and resources •
Usage of Bandwidth, AAA (Authentication, Authorization, Accounting) PERFORMANCE MANAGEMENT It involves the evolution of all performance of network in its best anddegraded condition. All this evolution based on previous data
SECURITY MANAGEMENT Security Management is used to protect unauthorized user and anyattacks and invalid access of network INTERNAL SECURITY THREATS Involves the misuse by user to gain access to prohibited informationand to extra privilege EXTERNAL SECURITY THREADS Involves the hacker and intruders by use of hacking software, spyware, virus attacks etc
TMN:
OPERATION
PRINCIPLE
Definition:
TMN “Human Site”
Function:
Location: NE resides in the “Managed TelecomNetwork” to “Handle Traffic (NotManagement)”
Operation: “Origin” & “ Destination” of management“Supervision” & “Control”
Function: Interfaces govern the manner in whichmanagement systems interact.
Standards: Standards for interfaces are emphasized toallow nodes (of different vendors) to interact
