What Are Networking Switches?

When establishing a wired or wireless local area network (LAN) to interconnect various computers and other systems, a networking switch serves as the central device. With the networking switch, signals sent from all computers on the system can be efficiently routed to one another, ensuring that resources can be shared with ease. To help you better understand the use and importance of such equipment, we will provide a brief overview of them in this blog.

In the realm of computer technology and networking, a local area network (LAN) is considered to be a network that interconnects computers that are all within a single residence, university campus, office building, or other limited area. Through LAN connection, multiple devices can communicate with one another efficiently while requiring connection with cables or through wireless means. To establish such a network, however, a handful of components are required.

In order for computers to successfully establish a connection through the local area network, they must be fitted with a network interface card (NIC). With the NIC, the computer can obtain its own unique address, which is known as a Medium Access Control (MAC) address. If the NIC installed in a particular computer is a wired type, then it will facilitate the connection of an Ethernet cable for network connectivity. For wireless NICs, on the other hand, an antenna facilitates communication in lieu of cables. Regardless of which type of NIC is used, the network switch will always provide the same role of reading and relaying data packets to and from computers.

In order for the networking switch to optimally handle receiving and transmitting data simultaneously, such devices are designed to run in full-duplex mode. As a result, networking switches can well outperform networking hubs which serve a similar role, albeit only being capable of either sending or receiving data at one time. Networking switches also surpass networking hubs in their discriminate handling of network traffic, utilizing MAC addresses to correctly relay data to its intended destination. Networking hubs, meanwhile, send data to all nodes on the network, utilizing the filters of each machine to ignore data that was not meant to be sent to it. Because of this, networking hubs lack the security of networking switches as packet sniffers can take advantage of the way hubs relay traffic.

Despite the networking switch taking advantage of MAC addresses for sending data, they are not invulnerable to eavesdropping. In some instances, a networking switch can be tricked into accommodating packet sniffers, though doing so leaves signatures that can be tracked. To best protect a networking switch from malicious attacks, anti-sniffing software should be installed on the network so that any packet sniffers are quickly detected with ease.

When procuring a network switch, such devices are often fairly cheap in price, though the cost will range depending on how many ports one wishes to have. If one has their own cable modem or DSL service, there is a possibility that they can use a broadband router that features an integrated built-in switch and firewall instead of using a separate networking switch. For either networking switch solution, look no further than ASAP Aviation Supplies for everything you need!


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February 7, 2022

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