Network what is a bridge

This type of bridge allows to translate the fetched data. With the help of translational bridge, two different types of networks like as token ring and Ethernet network can be attached.

It has a ability to remove or add the any field and information from frame when it is required. Source-route bridge is introduced by IBM for using the Token ring networks. It allows to embed the all frame routes into one frame, and then this bridge takes the precise decisions that how the frame is forwarding with using of the network.

In this technique, two same network segments can be linked to data link layer. Source-route Bridge helps to prevent the looping problems. It does not require the packet filtering or buffering because it simply broadcast the incoming data packets to the accurate port or remove them.

Its speed can be varied depend on the local and wide area links. This bridge has internal buffer that helps to hold the data grabbed from LAN network , and then it is getting. In the computer network , the bridge is used to connect various LAN networks along with similar protocol an get communication in between the all networking devices which are linked to the network. Consider the following example network:. In the picture above we have a network of four computers.

The network is divided into segments by a bridge. Each segment is a separate collision domain with its own bandwidth. The bridge will inspect the frame and forward it to the segment of the network Host C is on.

Network bridges offer substantial improvements over network hubs, but they are not widely used anymore in modern LANs. Also, because each collision domain has its own separate bandwidth, a bridge also improves the overall network performance.

It inspects incoming traffic and decide whether to forward it or filter it. Each incoming Ethernet frame is inspected for destination MAC address. If the bridge determines that the destination host is on another segment of the network, it forwards the frame to that segment.

In the example above we have a network of four computers.