Overview in Network Infrastructure
Network infrastructure refers to the hardware and software resources of an entire network that enable network connectivity, communication, operations and management of an enterprise network. Network infrastructure provides the communication path and services between users, processes, applications, services and external networks/the Internet. A network infrastructure can be identified as a public or private network that carries information of high financial value. Services with high financial value, such as banking, e-commerce, and trade, exchange confidential data worldwide, beyond the boundaries of national network regulation and legislation. Other industries, such as aviation, space transport, mass transit, and shipping, also depend on the network infrastructure. There are several examples of damage that may result from vulnerabilities or defects in today’s network infrastructures. Power supply can also affect the physical aspects of network infrastructures. Natural disasters can damage important data even if perfect back-up systems are available. Other examples of dependent infrastructures include energy infrastructures, such as oil and natural gas. Similarly, cyber disruptions can result in damages of these infrastructures stretching over a wide geographical range. A reliable international security system is necessary, if such damage is to be prevented in advance. IT Infrastructure
IT infrastructure refers to the composite hardware, software, network resources and services required for the existence, operation and management of an enterprise IT environment. It allows an organization to deliver IT solutions and services to its employees, partners and/or customers and is usual internal to an organization and deployed within owned facilities.
Parts of Network Infrastructure
Network infrastructure is typically part of the IT Infrastructure found in most enterprise IT environments. The entire network infrastructure is interconnected, and can be used for internal communications, external communications or both. A typical network infrastructure includes: •
There are five different types of network hardware: signal managers, cables, adapters, interface units and data centers. Network hardware is a general term for the physical devices and units that are required to create a computer network. Signal managers are a broad category of network hardware. This type of equipment includes routers, switches, hubs and gateways. The purpose of this equipment is to move the signals along the network to the correct location. Information is transmitted along a network using information packets. The header of the packet provides the recipient address, among other information. The signal manager read the header and moves the packet to the nearest stop in the network. As it moves along, the header information is read again, and the packet is routed to the next location, until it reaches the final destination. Cables provide connections between the signal managers. They come in a wide range of sizes, thickness and colors. Up to 25% of all network problems are cable-related. The cables used to create a network are low priority item. The Ethernet cables that connect individual workstations to a network backbone can run for miles and the temptation is to purchase the cheapest cable available. Keep in mind how far you would have to go and the total cost to troubleshoot and replace this type of cable. Invest wisely in the original set up to avoid excess cost later on. Adapters are used to allow technology to work together, regardless of manufacturer. These units are central to the network hardware and are often the tool that cables plug into. Interface units perform a similar function, but on a broader scale. Instead of connecting cables, the create bridges among different...
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