What do you mean by Network Management System (NMS)? Discussconceptual areas of ISO Network Management Model. IGNOU

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QUESTION:

ANSWER:

Sure! It looks like you have a query about Network Management Systems (NMS) and the ISO Network Management Model. Here’s a detailed explanation:

Network Management System (NMS)

A Network Management System (NMS) is a set of hardware and software tools used by IT professionals to monitor, manage, and maintain computer networks. The main objective of an NMS is to ensure the efficient operation of the network and to detect and resolve network issues swiftly. An NMS typically includes the following components:

1. Network Monitoring: This involves real-time monitoring of network devices, traffic, and performance. Monitoring tools can detect anomalies and potential issues by analyzing metrics such as bandwidth usage, packet loss, latency, and device status.
2. Network Configuration: NMS tools enable administrators to configure and manage network devices, such as routers, switches, and firewalls. This includes tasks like setting up device parameters, applying security policies, and managing firmware updates.
3. Fault Management: This involves detecting, isolating, and resolving network faults. An NMS can generate alerts and notifications when faults occur, allowing administrators to take corrective actions promptly.
4. Performance Management: NMS tools analyze network performance metrics to ensure optimal operation. This includes monitoring throughput, latency, jitter, and other performance indicators to identify and address performance bottlenecks.
5. Security Management: Ensuring network security is a critical aspect of NMS. Security management tools help detect and respond to security threats, such as unauthorized access, malware, and vulnerabilities. This includes monitoring network traffic for suspicious activities and implementing security policies.
6. Accounting Management: This involves tracking network usage and resource consumption for billing and capacity planning purposes. Accounting management tools can generate reports on network usage by individual users or applications.

ISO Network Management Model

The ISO Network Management Model, also known as the ISO OSI Network Management Model, is a framework developed by the International Organization for Standardization (ISO) to standardize network management practices. The model defines five key conceptual areas, also known as Functional Areas of Network Management:

1. Fault Management: The goal of fault management is to detect, log, notify, and respond to network faults. This area focuses on identifying network issues that may cause disruptions or degradation in network performance. Fault management tools help network administrators diagnose and resolve problems quickly to minimize downtime.
2. Configuration Management: This area deals with the configuration of network devices and services. Configuration management involves maintaining an inventory of network devices, managing device settings, and ensuring that configurations are consistent and up to date. It also includes tasks like software updates, device provisioning, and backup and restoration of configuration data.
3. Accounting Management: Also known as “Usage Management,” this area focuses on tracking and analyzing network usage data. Accounting management tools help administrators measure the utilization of network resources, generate usage reports, and implement billing mechanisms. This information is essential for capacity planning, cost management, and ensuring fair resource allocation.
4. Performance Management: Performance management aims to optimize network performance and ensure that service levels meet user expectations. This area involves monitoring and analyzing performance metrics such as throughput, latency, packet loss, and error rates. Performance management tools provide insights into network health and help administrators identify and address performance issues.
5. Security Management: Security management is concerned with protecting the network from security threats and ensuring data integrity, confidentiality, and availability. This area includes tasks like implementing security policies, monitoring network traffic for suspicious activities, managing access controls, and responding to security incidents. Security management tools help safeguard the network against unauthorized access, malware, and other threats.

Conclusion

Network Management Systems (NMS) and the ISO Network Management Model are essential for maintaining the health, performance, and security of modern computer networks. NMS tools provide network administrators with the ability to monitor, manage, and troubleshoot networks effectively. The ISO Network Management Model offers a standardized framework that guides network management practices across different organizations and industries.

By leveraging NMS tools and adhering to the principles of the ISO Network Management Model, organizations can ensure the efficient operation of their networks, minimize downtime, and enhance overall network performance and security.