Network Components
1. Router:– A router is a device that transfers data from one
network to another in an intelligent way. It forwards data packets from source
to destination by the most efficient route. The router has a micro-computer inside
it. This holds a table in memory that contains a list of all the networks it is
connected to, along with the latest information on at that moment how busy each path in the
network is. It is called a routing table.
network to another in an intelligent way. It forwards data packets from source
to destination by the most efficient route. The router has a micro-computer inside
it. This holds a table in memory that contains a list of all the networks it is
connected to, along with the latest information on at that moment how busy each path in the
network is. It is called a routing table.
ROUTER
2. Repeater:-A repeater is a device that operates only in the
physical layer Generally a repeater operates only in the physical layer. Signals that carry information within a network can travel a
fixed distance before the fades of the signal. A repeater receives a signal and regenerates the original bit pattern before it becomes too weak or corrupted,.
The repeater then sends the refreshed signal. with the help of a repeater, we can extend the physical
length of a LAN. It does not actually connect two different LANs, it connects
two segments of the same LAN.
REPEATER
3. Bridge:– A bridge can operate in both the data link layer and the physical layer.
As a physical layer device, basically, it regenerates the signal it receives from any network.
As a data link layer device, the bridge the physical address(MAC-Media
Access Control) contained in the frame.
4. Switch:– We can have a two-layer switch or a three-layer switch.
there is a three-layer switch that is used at
the network layer, we can say, is a kind of router.
the network layer, we can say, is a kind of router.
The two-layer switch performs at the physical layer and data link layer.
A two-layer switch is a bridge. With many ports, a bridge can allocate a unique port to each station.
The switch has multiple ports and can perform error checking before
forwarding data.
forwarding data.
5. Gateway:– Gateways are the device which converts data passing between dissimilar to communicate with each other. The Gateway is a mixture
of hardware and software. It operates at the top three layers of the OSI (Open
System Interconnection).
of hardware and software. It operates at the top three layers of the OSI (Open
System Interconnection).
