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A network switch manages the sharing of multiple computers or networks on the same data connection. It directs data packets to the correct destination, allowing sharing of resources without degrading performance. There are four types of switches: unmanaged, managed, intelligent, and enterprise managed. Each has its strengths and weaknesses.
A network switch is a device that manages the sharing of multiple computers or networks on the same data connection. Another name for this device is a network bridge, which is a physical device responsible for routing and processing data within the open systems interconnection model. A network switch does not include hubs or repeaters, as these devices do not include any type of logical processor.
A network switch can support port transfer rates of 10/100 Mbit/s (Megabits per second) or 10/100/1000 Mbit/s. It is possible to have multiple switches operating at different speeds on the same network. However, this type of configuration lends itself to bottlenecks and limits the possible paths available for data flow.
These devices are absolutely critical in managing a computer network. They work as a traffic management system within the network, directing data packets to the correct destination. They are used to connect peripheral devices to the network and ensure maximum cost efficiency and the ability to share resources.
A typical network switch setup consists of two computers, a printer, and a wireless router. All devices are connected to the switch and each element must be clearly identified and connection rules created.
Once setup is complete, any computer on the network can use the same printer. All computers can transfer files to each other, and anyone with a wireless card can access the network, print and transfer files. The switch is designed to allow sharing of resources without degrading performance.
A simple analogy for a network switch is a cop at a four-way stop. Cars are the data packets that are sent out by each device as it tries to communicate with the other devices on the network. The “policeman” directs traffic, sending data to the right location, without collisions.
There are four main types of network switches. The four types are unmanaged switches, managed switches, intelligent switches, and enterprise managed switches. Each different type has its strengths and weaknesses that need to be considered.
An unmanaged switch is the cheapest option and is typically used in a small office or business. These perform the basic functions of managing data flow between a shared printer and multiple computers. They can be desktop or rack-mounted models.
A managed switch has a user interface or software offering that allows users to change switch settings. There are several methods to upgrade your network switch, from a serial console to an internet based application. This type of device requires an experienced user to adjust settings as needed.
An intelligent switch is the intermediate product offering between an unmanaged and managed switch. The user interface is web-based and configured with the most popular default settings. Adjustments to a setting result in an automatic adjustment to the related setting.
A corporate managed network switch has a wide range of adjustable settings to allow it to be used within a large company or organization. These are usually maintained by network specialists and are constantly monitored, due to the size and complexity of the network.
