Networking devices short ppt

1. Networking Devices

2. Introduction

LANs do not normally operate in isolation but
they are connected to one another or to the
Internet.

To connect LANs, connecting devices are
needed and various connecting devices are
such as bridge, switch, router, hub, repeater.

3. Connecting Devices

4. Hubs

A hub is used as a central point of connection
among media segments.

Cables from network devices plug in to the
ports on the hub.

A passive hub is just a connector. It connects
the wires coming from different branches.

5. Repeaters

A repeater is a device that operates only at the
PHYSICAL layer.

It connects two segments of the same network,
overcoming the distance limitations of the
transmission media.

Repeaters can connect segments that have the
same access method. (CSMA/CD, Token
Passing, Polling, etc.)

6. Bridges

A bridge is a type of computer network device
that provides interconnection with other bridge
networks that use the same protocol. Bridge
devices work at the data link layer of the Open
System Interconnect (OSI) model, connecting
two different networks together and providing
communication between them.

7. Switches

A network switch (also called switching hub,
bridging hub, officially MAC bridge) is a
computer networking device that connects
devices together on a computer network by
using packet switching to receive, process, and
forward data to the destination device.

8. Router

Router is computer networking devices that
allow one or more computers to be connected
to other computers, networked devices, or to
other networks.

A router is a networking device that forwards
data packets between computer networks.
Routers perform the traffic directing functions
on the Internet.

9. Gateway

A router is a common type of gateway used in
home networks. It allows computers within the
local network to send and receive data over the
Internet.

It may also translate data received from outside
networks into a format or protocol recognized
by devices within the internal network.

10. Thank You...