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Name: Ahmed
Status: Student
Age: 20s
Location: N/A
Country: N/A
Date: Around 1999


Question:
In Networks:

What is the different between Hubs, Switches and Bridges in network (in PERFORMANCE and LOCATIONS in network)?



Replies:
Ahamed, good question,

First off these devices are all connectivity devices, they work at various layers of the OSI model and all have unique functions. A hub connects computers in a fashion that is mostly used in small traffic networks. A hub broadcasts all the packets it receives to the other computers on the hub. Now a switch looks like a hub but is keeps a mapping in memory where each computer is. By doing so, it does not have to broadcast to each computer, it allows computers to communicate on a computer by computer basis. Thus making switches much faster than hubs. A bridge was used before switches and routers to segment network traffic. Bridges would segment networks in two or more sections allowing the isolation of heavily used networks.

Joseph Noga MCP, N+


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