What is Hub | What is Hub in Network?

What is Hub in Network
What is Hub in Network

The network hub is a very basic networking device using it to connect multiple computers with other networking devices. Hubs are networking devices operating at a physical layer of the OSI model that is used to connect multiple devices in a network.

Hubs are such common network infrastructure devices that are used for LAN connectivity, whereas switches are now replacing hubs.  Hubs function according to the central connection point of LANs.  At the same time, people have many doubts about Hubs. 

What is the hub?

 The device of hub that splits a network connection into multiple computers.  It is like a distribution center. In a computer requests information from a network or a specific computer then it sends that request to the hub via a cable. When the hub receives that request and transmits it to the whole network. 

So many computers in that network have to know whether the data that has been broadcast is for them or not. These Hubs are very less in vogue and they are being replaced by more than advanced communication devices such as Switches and Routers.

Hub is a multiport repeater. Hub is a device to use to connect multiple wires which come from different branches, for example, the connector is used in star topology and is used to connect different stations.  Hubs could not filter data, so data packets are sent to all connected devices.  In other words, then, all the hosts which are connected with the hub have a collision domain.

What is Collision Domain?

 In Ethernet, the network area in which collided data packets (frames) can be detected is called the collision domain.  Remember whenever two devices connected to the hub send frames simultaneously, there will be a collision.  Therefore all the devices connected to the hub fall under the same collision domain.  Hub represents a single collision domain.

Types of hub

When a comes to the types of hubs, they can be divided into three boards categories on a technical basis.

  • Passive hub
  • Active hub
  • Intelligent hub

Passive Hub

 Passive Hubs are called those hubs which collect wiring from the nodes and power supply of the Active Hub. Passive Hub does not require electricity because it does not work to regenerate the signals and it does not even try to create more distance between nodes.  It acts just like a connector that receives signals and sends them as they are to the ports connected to them.

 This is a hub that relays signals to the networks without cleaning and boosting them as well as they cannot be used to extend the distance between nodes.  As its name itself is passive, in the same way it only broadcasts signals through the input port, while it sends them through the output port.   It does not do anything to regenerate or process signals because it only functions as a connector in topology to connect many wires.

Active hub

Active Hubs are called Hubs that need electricity because these hubs also regenerate the signals, they regenerate the signals to find out whether the signal is strong or not.  An active hub performs more functions than the devices connected to it, as well as it tries to create maximum distance between nodes, Active Hub is also known as a multiport repeater.

Intelligent Hub

This is the most different type of hub, it can accomplish the tasks that active and passive hubs do, it helps in displaying traffic to network resources, also a manageable hub to an intelligent hub.  The Intelligent hub is very easy and fast to perform all the tasks that a passive hub and active hub perform and together they help in effectively managing the network resources so that the performance of the networks is highly efficient. 

The right location of the problem can be identified so that it can be eliminated from the root.  These are very adaptable to different technologies and they can be used without much change in their configuration.  This intelligent hub also performs many different functions such as this intelligent hub also performs are many different functions such as bridging, routing, switching, and network management.

What is a network hub?

 The network hub is a networking device that is connected to multiple peripherals in a network and helps them function as a single segment, while it broadcasts data, unlike a switch or router.  Across each connection and not route them to a specific device.  Network hubs also have different speeds, which are called network data rates or bandwidth.  Where the earlier older network hubs only provided 10 Mbps speed, the current hubs provide speeds up to 100 Mbps.

 For large networks, it is necessary to use a dual-speed network hub, and it comes in both 10 and 100 Mbps which provides connection points to computers and printers.  

What are the features of Network Hub?

 About your information the maximum number of computers that can be connected to one big hub?  If we talk about a USB hub, then we can connect 127 devices in it and 32 in the network hub.  

  •  the hosts are responsible if there is any collision detection and retransmission of packets.
  • There are mainly three types of them: Active hub, passive hub, and intelligent hub.
  • It operates in half-duplex mode. 
  • It is available in 4 to 24 port sizes

How does Network Hub work?

 When we are working on multiple devices then a host sends the frame at that time hub works to send the frame to all port network hub does not differentiate the types of the frame when Unic Cast or Multicast or Broadcast send all the frames to all ports The frame that works for forwarding accepts it, its MAC address is equal to the destination make address field of the frame, the rest of the host receives it and discards the best card.  This is how Network Hub works.

Conclusion

We have told you the whole information about hub like what is a network hub and how many types are there and how does it work, so hopefully you must have understood well about the network hub.

Frequently asked question

Q 1. What is the function of the hub?

 Ans. The function of a hub is to connect two or more networking devices. 

Q 2. How many types of hubs are there?

  Ans. There are three types of hubs.  Passive, Active, and intelligent

Q 3. Do hubs have an IP address? 

Ans. Yes

 Q 4. why are hubs not intelligent devices?

Ans. Because they send the data packets to the entire computer.

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