Ethernet bridges first appeared commercially in the 1980s. Ethernet bridges were used to connect homogeneous networks and forward packets between them. These Ethernet bridges allowed users to make the most of their network's size while not exceeding the maximum wire length, number of repeaters or attached devices.

The Function of an Ethernet Bridge
The use of Ethernet bridges has expanded to include bridges between different networks. Today you can use Ethernet bridges to connect multiple networks to form a larger network. There are two types of Ethernet bridges: remote and local. Local Ethernet bridges connect multiple LAN segments directly. Remote bridges connect multiple LAN segments in different areas, usually across telecommunication lines. Remote bridges have an Ethernet interface on one side and a serial interface on the other. A similar device is used to connect to the other side of the serial line. These types of bridges are most commonly used in WAN links, where network cable installation isn't an option.

There are, of course, several products that can help extend a network's range. Repeaters, extenders and bridges can all provide this function, in different ways. One of the most common uses of the Ethernet bridge is to connect an Ethernet to a network of a different type--for instance, a wireless network. The Ethernet bridge allows this connection between differing media or protocols to be seamless, by  forwarding information based on the layer-two Ethernet address, rather than the layer-three IP address (as done with a router).

At Patton, we offer a number of Ethernet bridges that can provide cost-effective solutions to your network problems, such as LAN-to-LAN bridging or IP extending. Our bridges provide a wide variety of serial interfaces, and can help connect both local and remote segments. As with the rest of our product line, Patton Ethernet bridges are compatible with other Patton products, as well as with standard third-party equipment. If you need assistance choosing the right Ethernet bridge product, our experienced staff is always happy to help you. Just call Patton at (+1 301 975 1000) or email sales@patton.com with any questions you might have.