Hubs or Repeaters, are devices which are used to extend a single LAN. It acts like an amplifier. Whatever noise and signals arrives at, it amplifies and forwards to the rest of nodes. It just extends the network.
Bridges, can be used to connect two LANs together to make it a single LAN. The most important point of a Bridge is that it separates collision domain ( in case of Ethernet). Collisions occur when two hosts talk at the same time. But two hosts separated by a Bridge can talk at the same time, as Bridge separates the "electric part".
Routers, connects multiple LANs together. Routers acts as the boundary for broadcast domain. A broadcast should reach all machines in the LAN, but not beyond. Routers thus significantly increases bandwidth.
A Hub or Repeater, is a physical layer device.
A Bridge is a data link layer (L2) device.
A Router is a network layer (L3) device.
Subscribe to:
Post Comments (Atom)
About Me
- Anoop G
- Predictably Unpredicatble, lazy, careless, sincere, honest, caring, Trouble maker, emotional, likeable
No comments:
Post a Comment