What are the Networking Devices? How They Work?


Introducing Networking Device

  • Networking: Network is a collaboration or connection of two or more zones or device through a common linking method. The network allows the nodes to shares resources between the linked systems. This is applicable in telecommunication, internet, and even offline data sharing.
  • Computer Hardware: Computer Hardware is a physical part of the laptop or computer user for storing data, connecting, viewing and listening. The use of computer hardware in networking is detailed.
  • LAN and WAN devices: LAN, local area network is a collection of devices or computers connected to a common server. WAN or Wide area network devices cover a huge amount of area as the network spans longer. The devices can be connected through satellite and leased line.
  • Collision: In order to understand networking devices, knowledge of collision is important. A network collision occurs when two network devices try to transmit the same data at the same point of time. If the network detects such a collision, it discards both the packets received.

What is the use of network devices?

Network devices are used to establish a network connection inside the corporate environment. Take a look at the concept of internetworking devices and how they work. 
Networking Devices
Networking Devices
In this image, HUB, Bridge and Switches are used to implement a switched network of the devices, while the router is used to interconnect multiple switched networks. There are certain hardware devices used within the network to connect two or more computers or peripherals.
  • NIC ( Network Interface Card )
  • Repeater
  • HUB
  • Bridge
  • Switch
  • Gateway
  • Router
  • Modem
The networking devices are intelligently designed to connect two or more computers through a data path. Apart from sharing files, these devices enable printers and fax machines sharing. The communicating devices set up a path that connects all computers in the network.

EP. 06 | What is Networking Devices?

                   
NIC:  NIC stands for network interface card. Sometimes it is also called by the name "network interface controller". It is, in reality, a circuit board or a card that is installed in a computer so that it can be connected to a network. Actually, the network interface card provides the computer with a dedicated, full-time connection to a network.          
Personal computers and workstations on a local area network (LAN) typically contain a network interface card specifically designed for the LAN transmission technology. 
Networking Devices
Networking Devices

Also, there is a WLAN (Wireless LAN) card as shown in the image below.

Repeater:

A repeater is a network device, which used to regenerate or rejoin a signal. It removes the unwanted noise in an incoming signal. Unlike an analog signal, the original digital signal, even if weak or distorted, can be clearly understood and restored. With analog transmission, signals are re-strengthened with amplifying which unfortunately also amplify noise as well as information. Repeater operates at Layer 1 of OSI.
Networking Devices
Networking Devices


HUB:

Basically, a hub is a common point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports. When a packet arrives at one port, This device Broadcast the packet to all the ports so that all segments of the LAN can see all packets. HUB operate at Layers 1 of OSI.
Networking Devices
Networking Devices


Bridge:

Bridge devices look at all incoming network traffic and determine whether to forward or discard it according to its destination address through MAC Addresses. It is a Software-based device but contains only 2-4 ports to connect end devices. Bridge devices operate at the data link layer (Layer 2) of the OSI model.
Networking Devices


Switch:

A switch is very common types of networking device that maintains a MAC Addresses Table of all Connected devices to it. This device is an Upgraded version of Bridge which contains many ports into it to connect many End devices. Even it has an ability to check for Error in data before forwarding it On an Ethernet LAN, the switch determines from the physical device like MAC address in each incoming message frame or packet which port to forward it. There is the Second type of Switch even, In an Internet, a switch determines from the IP address in each packet, and the output port of the switch is connected to the next part of the intended destination.
Networking Devices
Networking Devices


Gateway:

A gateway is a network node which connects two networks in different protocols. Gateways can take several forms, including routers or computers and can perform a variety of tasks. 
Networking Devices
Networking Devices

These range from simply passing traffic on to the next hop on its path offering complex traffic filtering, proxies or protocol translations at various network layers. The most common gateway is the internet gateway, which connects a home or enterprise network to the internet. An internet gateway also often acts as a security node, variously filling one or more security roles, such as proxy server, firewall or Network Address Translation (NAT) server. Software-Defined WAN (SD-WAN) and virtual WAN systems serve as gateways between an enterprise network and two or more Wide Area Networks (WANs).

Router:

A router is one of the most used networking devices to sharing internet connection between two devices. The operation of the router is to send and receive data from the different network and It operates at layer 3 of OSI. 
Networking Devices
Networking Devices

The connections established through router cab be:

Ethernet to Ethernet-

In this scenario, the main router can either be Linksys or a third party and will be referred to as the main router. The second should be Linksys and will be called secondary router. If you want to cascade a non-Linksys router to the main router, you need to call its manufacturer for support.
Networking Devices
Networking Devices


MAN to WAN-

Connecting one of the Ethernet ports of the main router (MAN) to Internet port (WAN port) of the secondary router. This type of spilling requires the main router and the secondary router to have different IP segments. This connection makes it easier to identify which router the computers and other devices in the network are connected that are connected to the main router will not be able to communicate with the secondary router, and vice versa since there are two different networks. before you connect a Linksys router to another router, make sure that both routers have different IP Addresses. This is necessary to avoid conflict and connectivity issues in the local network if they have similar IP Addresses.
Networking Devices
Networking Devices


Token ring to the Internet-

Token ring local area network LAN) technology is a communications protocol for local area networks.

Modem:

MODEM stands for modulator-demodulator. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between these forms (analog to digital and vice versa).
Networking Devices
Networking Devices

What are the Networking Devices? How They Work? What are the Networking Devices? How They Work? Reviewed by Tech Akshay on November 11, 2018 Rating: 5

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