Different Network connectivity Devices

The various type of networking devices are:
1. Repeater
2. Hub
3. Bridge
4. Switch
5. Router

1 Repeater/Hub
* It is not an intelligent devices
* It works with bites
* Uses broadcast for communication
* bandwidth is shared
* Half-duplex communication

2.Bridge
* It is an intelligent devices
* It is software based
* In bridge port quantity is very less
* it is a layer 2 deices
* data transmission type is frame

3. Switch
* It is an intelligent device
*It maintains MAC address table (hardware address)
* Each port of the switch has fixed bandwidth
*It works with Flooding and Unicast
* Supports full duplex communication
* Function of a Switch
    -> MAC Address Learning
    -> Forwarding

4. Router
* It is a Layer 3 device
* It is an Intelligent device
* It works with Logical Addressing (i.e. IP, IPX, Apple Talk)
* It works with Fixed bandwidth
* Function of Router
    ->Inter Network Communication
    -> Best path selection
    -> Packet Switching
    -> Packet Forwarding

Different Network Connectivity Media

The various type of network Connectivity Media are:

1. Guided Media

     I. Co-axial Cable

     II. Twisted pair
            a. UTP
            b.STP

    III. Fiber Cable

2. Unguided Media

    I Infrared

    II RF