IWT | What do you mean by Bridges? Explain its importance in Network system.

Definition: 

• A bridge in a computer network is one kind of network device, used to separate a network into sections. 

• Every section in the network represents a collision domain that has separate bandwidth. So that network performance can be improved using a bridge. 

• In the OSI model, a bridge works at layer-2 namely the data link layer. The main function of this is to examine the incoming traffic and examine whether to filter it or forward it.

Use of Bridge in Computer Network

• A bridge in a computer network connects with other bridge networks that utilize a similar protocol.

• These network devices work at the data link layer in an OSI model to connect two different networks and provide communication between them. 

• Similar to hubs and repeaters, bridges broadcast data to each node. But, maintains the MAC (media access control) address table to find out new segments. So, following transmissions are transmitted to the preferred receiver only.

• A bridge utilizes a database to determine where to transmit otherwise remove the data frame.