Hello Friends, In this blog post we are going to discuss the difference between a hub and a bridge.
Difference between hub and bridge:
A hub is a number of input lines that it joins electrically as shown in fig 1 below.
Frames arriving on any of the lines are sent out on all the others. If two frames arrive at the same time, they will collide; just as on a coaxial cable.
The entire hub forms a single collision domain.
All the lines coming into a hub must operate at the same speed.
A bridge connects two or more LANs as shown in fig2 below.
When a frame arrives, software in the bridge extracts the destination address from the frame header and looks it up in a table to see where to send frames.
In a bridge, each line is its own collision domain, in contrast to a hub.
A bridge may have a line card for different network types and different speeds.
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What is the difference between a Hub switch and Bridge?
The key difference between Hubs, Switches, and Bridges are given below:
In OSI Model Hubs operate at layer 1.
Switches and bridges work at layer 2 within the MAC addresses.
Hubs are used to broadcast all incoming traffic to all the ports.
Switches and bridges are used to route the traffic only toward their destination’s addresses.
What are the advantages of the bridge over a hub?
The advantages of a bridge over hub are given below:
The bridge connects similar network types with different cabling.
Bridge increases the number of attached workstations and network segments.
It reduces network traffic with minor segmentation.
It reduces collisions.
It extends the physical network.
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