Network Management :-

• Network management is the process of administering, managing, and operating a data network, using a network management system.
• Modern network management systems use software and hardware to constantly collect and analyze data and push out configuration changes for improving performance, reliability, and security.
• In today’s networks, it’s a complicated exercise to monitor and maintain how well your network is functioning.
• Network management involves so many different components that you need the right people, technologies, and tools to do it well.

Why Do We Need Network?

• The need to monitor and maintain a network of interconnected devices has been required since the early days of the internet. The Internet Control Message Protocol (ICMP) was developed in the early 1980s to help identify network errors.

• As networks became more complex with increased numbers of devices on LANs and WANs, getting errors with ICMP wasn’t enough. And along came the Simple Network Management Protocol (SNMP) in the late 1980s to help get statistics before an error occurred. With SNMP, you could collect statistics, such as interface utilization, from routers, switches, servers, and other network devices. But more than that, you could set certain parameters, like interface descriptions or device locations, that are useful for later troubleshooting when collected.

• This ability began to open the doors of true network management. But as network complexity continued, this process needed to keep adapting to help network administrators and engineers stay on top of things