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What is switch and its types

by Sudhir kumar

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Do you know what is this switch and what type of network device is it? How does a switch work and what are its advantages and disadvantages? If you do not have much information about all these things, then you must read this article of today, what is a network switch. Because in this you will get complete information about everything related to Switch.

Switch There is a telecommunication device that is grouped according to a computer network component. Although Switch is similar to a Hub but it has some built in advanced features. It uses physical device addresses to identify each incoming message so that it can deliver the message to its correct destination or port.

Hub Like, the switch does not broadcast the received message to the entire network, but before sending any message, it checks from which system or port it should be sent.

In other words, then the switch directly connects to the source and the destination, so that there is a significant increase in the speed of the network. That’s why today I thought why not explain to you guys what is Switch in Hindi, which will help you to know it better. So without delay let’s start.

What is a Network Switch

Switch is a networking device that helps the devices in the network to be connected with each other, so that they Transfer data to the network. These network switches are completely identical, similar to network hubs, but a switch is more intelligent than a hub.

Switch Kya Hai Hindi

Intelligence means that the network switch has come Inspects the packet first, determines its source and destination address and then routes that packet to the right place accordingly.

In this way, by forwarding the switches packets to the correct destination Significantly conserves bandwidth. If we talk about the present time then network switches are now available 10/100/1000 Mbit/sec together with 10/100 Gbit/s ports in also. They operate in layer 2 of the OSI Stack. It is also often referred to as a multiport bridge.

What are the Methods Used by Switches?

Switches mainly use 4 methods to forward packets. So let’s know more about them.

1. Store and Forward – In this method, switches buffer each frame and perform checksum in it before forwarding them.

2. cut through – In this method, no error check is performed. It mainly consists of Switch frame The hardware reads the address and then forwards it.

3. Fragment Free Actually this method is nothing but a combination of both the above mentioned methods ie Store and Forward and Cut through. In this method, the first 64 bytes of the first frame are checked, from which the addressing information is received. This lets the switch know about the destination of the frame. Error checking is performed by layer 3 and layer 4, which is typically the router’s end device.

4. Adaptive switching – This is the last method which is used for automatic switching between the other three modes.

What are the Common Features of Switch and Hub

  • Multiple RJ-45 ports
  • having power supply
  • having connection lights

Type of Switch

Switches are actually connectivity points of an Ethernet network. These are small devices that receive data from multiple input ports and send them to a specific output port that takes that data to the right destination in that network. You can see many types of Switches in the network, let’s understand them now.

1. Unmanaged Switch

These switches are mostly used in home networks and small businesses because they are plug-ins and can be started using them immediately. These switches do not have to be watched or configured. In these only small cable connections are needed. It allows devices in the network to connect with each other, such as computer to computer, or computer to printer in one location. Talking about the price, then it is the cheapest as compared to the rest.

2. Managed Switch

These types of switches have many types of features such as having the highest levels of security, precision control and full management of the network. They are often used in organizations that have a very large network and can be easily customized so that the functionality of any one network can be enhanced.

Although this is considered a very costly option, but their scalability makes them ideal for networks that are growing. These are achieved by simply setting up a simple network management protocol (SNMP).

There are also two types of Managed Switches:

(I) Smart Switches

These switches offer only basic management features and have some ability to create certain levels of security but have a simpler management interface if we compare it with other managed switches. That’s why they are often called partially managed switches. They are mostly used in fast and constant LANs which support gigabit data transfer and allocations. These VLANs (Virtual LAN) configuration.

(II) Enterprise Managed Switches

These Switches have many features such as the ability to fix, copy, transform and display different network configurations. Along with this, having a web interface SNMP agent and command line interface. These are also called fully managed switches and they are more expensive than other smart switches because they have more features which can be enhanced later if needed. It is used in those organizations in which a large amount of ports, switches and nodes are being used.

3. LAN Switches

These are also called Ethernet switches or data switches. It is used to reduce network congestion or bottleneck, in which the package of data is distributed only to those who need it (only to the intended recipient). They are used to connect points in LAN.

4. PoE Switches

PoE switches are used in PoE technology. The full form of PoE is power over Ethernet, it is a technology that integrates data and power into the same cable and it allows the device to power the device so that it receives data in parallel with the power. Therefore, these switches provide better flexibility by simplifying the cabling process.

definition of switch

In the language of electronics, a switch is such an electronic device that breaks the circuit and carries current in different conducts. Whereas in the language of networking, those devices are called switches, which are used to establish a network.

What is the main role of network switches?

Whether the LAN network is big or small, many switches are needed in them for network connectivity. Many types of switches such as packet switches and network switches are an important part of any network.

The main function of Switches is to help connect all types of networks whether it is traditional LANs or SOHO networks. Here SOHO means a small enterprise consisting of 10 or more people. In such small networks, the use of a single all purpose switch is more.

these single switch DSL, WiFi And cable router Works to be connected together. Usually if we talk then switches the data of OSI model Operates in the link layer. Switches that can operate in all different OSI layers are called multi layer switches. These Multilayer switches can very easily operate in the data link layer, physical layer, transport and network layer.

Switches are of many types and they also have many ports. Having these ports helps them to connect and maintain with various networks in the form of a Fiber Channel, ATM and most commonly Ethernet. Layer 3 Or the network layer helps the switches of the OSI model to connect with the network and process the data.

Network Switches are proven to be very helpful in establishing connections with all types of small and big networks. For example in a large organization where many LANs are integrated into a large When it comes to connecting with the WAN, then the WAN router is often connected only through switches.

what is the difference between hub and switch

A switch is used to network multiple computers together. Switches that are made for the consumer market are often small, flat boxes with 4 to 8 Ethernet ports. These ports can easily connect with computers, cable or DSL modems, and other switches. High-end switches have more than 50 ports and are often rack mounted.

Switches are actually more advanced than hubs and moreover they are less capable than routers. Unlike hubs, switches can easily limit traffic to and from each port so that each device that is connected to the switch can receive a sufficient amount of bandwidth. That’s why you call a switch a “smart hub.” Like you can think. But, switches do not provide features such as firewall and logging capabilities as routers show.

Although routers can be configured with the help of software (typically via a web interface), switches work in the same way as their hardware is designed.

What are the Advantages of Switches

Although Switches have many benefits and advantages, let’s know about them:

  • It is used to increase the available bandwidth of the network.
  • By using them, the workload of individual host PCs can be reduced.
  • These help in increasing the performance of the network.
  • Networks that use switches have very few frame collisions. This is because switches create collision domains in each connection.
  • These are more intelligent than Hubs.
  • Switches can be connected directly with the workstation.

What are the Disadvantages of Switches

Let us try to know about the disadvantages of Switches:

  • These are very expensive compared to network bridges.
  • It is very difficult to trace network connectivity issues through network switch.
  • Broadcasting traffic can be a more troublesome task.
  • If switches are in promiscuous mode, then they are more vulnerable to security attacks, for example spoofing IP addresses or capturing Ethernet frames.
  • Proper design and configuration are required for multicast packets to handle.
  • When it comes to limiting broadcasts, they do not work as well as routers.

what did you learn today

I hope you like this article of mine What is a Network Switch Must have liked it. It has always been my endeavor to provide complete information about the type of switch to the readers so that they can be seen on any other sites or There is no need to search in the context of that article in the internet.

This will also save their time and they will also get all the information in one place. If you have any doubts about this article or you want that there should be some improvement in it, then you can write low comments for this.

If you liked this article What is the difference between Hub and Switch or got to learn something then please share this post on Social Networks such as Share on Facebook, Twitter etc.

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