Network infrastructure refers to the underlying foundation that enables communication and connectivity between devices and systems within a network. This includes hardware components such as routers, switches, servers, and cables, as well as software systems for managing and monitoring network traffic. The main purpose of network infrastructure is to facilitate the efficient and secure transmission of data between devices, allowing users to access resources and services both within the local network and over the internet. It also plays a critical role in ensuring network performance, scalability, and availability. Network infrastructure encompasses various technologies and protocols, such as Ethernet, TCP/IP, and DNS, that are used to establish and maintain communication channels within a network. Designing, implementing, and maintaining a robust network infrastructure is essential for organizations to support their operations, facilitate collaboration, and enable innovation in the digital age.