Types of networking / internetworking devices

Question

Explain various types of networking / internetworking devices?

Answer 1

Repeater :

It is also known as regenerator, it is an electronic device which operates at physical layer. It receives the signal within the network before it becomes weak, redevelops the original bit pattern and places the refreshed copy back into the link.

Bridges :

It operates both within the physical and data link layers of LANs of similar type. They divide the larger network into smaller segments. They consists of the logic which permit them to keep the traffic for every segment separate and so are repeaters which relay a frame only the side of the segment consisting the intended recipient and the control congestion.

Routers :

They relay the packets among the multiple interconnected networks. They function within the physical, data link and network layers. They consist of the software which enables them in order to estimate which of various possible paths is best for the particular transmission.

Gateways :

They transfer the packets among the networks which have several protocols. They recognize a packet formatted for the one protocol and transform it to the packet formatted for other protocol before transmitting it. They function in all the seven layers of OSI model.