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Learn much more about Networking Devices.
friends have any doubts you can make comments here I am always touch with you..

Friends now learn About Networking devices

1.what is networking device?

Ans.With networking devices we can form/create a Network
Without networking devices we can't think about network.
Whenever we will need to established network at that time we will need a networking devices or it is necessanry.

Types of networking devices

1.Router
2.switch
3.Hub
4.Repeater
5.Bridge
6.Nic card

1.What is Router
Ans.It is an Internetworking Device which connect different network/connect two or more than two network.
It is also called as intelligent device
Because it select a best path for packets passing from source to destination known as routing.
It maintains IP table.
It is available in 2 to 8 ports.
Each port act as single broadcast and single collision domain.
It maintains IP address table.
it is work on network layer of osi model..........

There are two types of router
Mountable router and un-mountable router

1.Mountable router
Ans. In mountable router we can add and remove ports(serial ports,access ports etc)
We configure it with help of dyanamic routing protocols or static routing protocols.

2.un-mountable router
Ans. We can't add or remove ports
As well as can't configure any routing protocols.
It is just plug and play device.

Ports of Router

1.Wan port
2.Access port
3.Admin port

1. Wan port
Ans. With the help of wan port we can connect different router/network..globally
It means serial ports.
@ old serial port
@ smart serial port

2.Access port
Ans. With the help access port we can connect different network within an organisation.
It means fast Ethernet port.

3.Admin port
Ans. USING admin port we can configure router
port
port

Console port is used to configure local router where as aux port is used for remotely configure to another router....

2.Switch
Ans. It is a multiport unicasting device with the help of this we can connect multiple node/device.
Each port having single broadcast and per port collision domain
It maintains MAC address table
It is available from 4 to 48 ports.
It is fast device for packet transferring purpose.
It is full duplex device...
It is intelligent networking device because whenever any device which connected to switch try to send data to another device it is send data to that perticular device only using MAC address of that device.
unmanageable switches work on data link layer of osi model
where as manageable switches work on Multi layer or network layer of osi model.

2- What is the Difference Between Layer 2 and Layer 3 Switch ?
Ans:
Layer 2 Switch -)
We Can Create VLAN, Inter VLAN Routing, Router on Stick, VTP Domains and Port-Security in Layer 2 SWITCH.

Layer 3 SWITCH -)
We Can Create VLAN, Inter VLAN Routing, Router on Stick, VTP Domains and Port-Security in Layer 2 SWITCH. and We Can Also
Enable Routing Between Two or More LAN (Local Area Network), not WAN (Wide Area Network).

There are two types of switch

1.Manageable switch
2. UNMANAGEABLE SWITCH

Manageable switch
In manageable switch we configure it
We can see MAC table Aslo
We can Create vlan
It having console port
Like rj45
It is also called multilayer switch

UNMANAGEABLE SWITCH
We can't configure it
It is just plug and play device
We can't see MAC table
We can't create vlan
It is work on data link layer of osi model..

3.HUB
Ans.It is a broadcasting networking device
It is half duplex device
it is available in 4 to 24 ports
it is plug and play devicee
it having single broadcast and single collision domain
it is not intelligent as like switch
it broadcast messages to all remaining devices which is connected to HUB
it means whenever any device which is connect to Hub
try to send data or packets at data all remaining devices also access this data.
it is work on physical layer of osi model.

there three types hub
1.Active Hub
2.Passive hub
3.hybrid hub

Active hub:
it required power supply
it boost the single
it means it is regenerate the signals.

Passive hub:
it doesn't required power supply
it is just connect and use

Hybrid hub:
it having multiple different ports
like console ports

4.Repeater

It is mainly use for regenerate signals purpose
at certain segment length each and every cable loss the data at that using repeater device we can regenerate the signals and extent the network.

5.Bridge

It is a networking device using it we can connect different LAN segment

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