Router And Transmission media


Used to connect network of different types
Means different architecture and protocols
Direct messages in connection of several networks
Work on network layer
Exchange protocol info. Of message
Find best path to send data
Filter broadcast traffic to local segment
Have both hardware and software
Means configurable.

Hardware may be a server a computer or a special device
Software is
Management software
Routing protocols
Operating system

Routers use two type of addresses.
Physical or mac address
Logical or IP address
Routers do work of a bridge but they keep the network separate.
As have 2 addresses network address and device address so slower than bridge
Though slower yet more intelligent than bridge as they find best path to send a packet.

Transmission media

Links to send data in the form of signals from one node to another.


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