What is the main purpose of Ethernet network management?

The primary purpose of Ethernet network management is to oversee and optimize network resources. This involves monitoring the performance of the network, managing bandwidth, ensuring the reliability of connections, and troubleshooting issues that may arise. Effective network management allows administrators to make informed decisions regarding resource allocation, which can lead to enhanced user experience, improved performance, and efficient utilization of network capabilities. By managing network resources proactively, organizations can also minimize downtime and optimize overall network efficiency.

While other options touch on aspects related to network performance, they do not encapsulate the comprehensive responsibility of network management. Constructing new network infrastructure focuses more on the initial setup rather than ongoing management. Increasing the speed of data transmission is a goal that can be influenced by management but is not the main purpose itself. Maintaining physical cables and connections falls under network maintenance, which is a part of the overall management but does not capture the broader focus on resource optimization and performance management.