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Wednesday, June 29, 2011

Difference between Switch,Hub,Router and Bridge??

A hub is simply a repeating device. It takes the signal it recieves and repeats it across all the ports it has. A bridge is used to link between two networks, wether they are of different types or just different networks. Therefor it has to make some decisions on where the information it is recieving is going. A switch works similiarly where it also makes decisions on where the data is going by reading a small portion of it (the destination address) and determines on which particular port to send it out. A router is the smartest of them all. It makes mutliple decisions based on where the packet is going and the quickest way to get there. It has the functionality of all the other devices including a bridge.
Hope this helps

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