Network Building Blocks - Switches
Introduction
A switch is a device that connects one device, such as a workstation to another, such as a server or a printer in the same network segment. A router, by way of contrast, switches packets between different networks. A switch contains a switch matrix or switch fabric that can rapidly connect and disconnect ports. Unlike a hub*, a switch only forwards frames from one port to the other port where the destination node is connected without broadcast the frame to all other ports. Some routers come with anywhere from 4 to 24 switched ports, but it is generally not cost-effective to buy such a combination if you already have a firewall/router in place.
Wired network switches are ideally tailored for small and medium-sized businesses that want to optimize their networking capacities. Switch performance often determined by somewhat obscure and abstruse specs. For example, MAC address buffer memory, broadcast storm prevention and other data transmission optimizing technologies can make a substantial difference in overall network performance.
The more widely available network switches are generally compatible with 10/100 mbps data rates, and provide error-free data transmission. Gigabit network switches are available for even faster transfer rates, and as more computers come standard with gigabit network cards We show examples of both gigabit Ethernet and standard 10/100 switches.a faster switch may be a quick and easy upgrade to your network that will show immediate results.
Bear in mind that the examples shown below are some of the most popular and effective products in their respective classes, but this list is by no means exhaustive. StarLAN Consulting Services can recommend the most appropriate and cost-effective products for your business networking needs.
*See Switch vs Hub for a more detailed explanation.
*See also Common network devices and what they do for more information about network components and their functions.