Types of Hub in Network

There are three different types of hubs which are used in the computer networking; below explain each one –

Passive Hub:

• Passive hubs have many connections slots for connecting wires which helps to create the physical network. These hubs do not should any effect on the performance, but it determines the several bugs and identifies the faulty hardware parts. These hubs obtain the packets on the port and then finally transmit to other ports.

• Passive hubs have 10base-2 port and RJ-45 connectors which are linked with Local Area Network Advance passive hubs contain AUI ports which are linked as transceiver as per network design.

• Passive hubs are not capable to manipulate or see all traffic that passes it, and it does not need any electrical power to perform any task.

Active Hub:

• Active hubs enable with few extra features than passive hubs. This hub is capable to monitor the all data that send to other attached devices. It play a major role in between the all connected network hardware devices with the use of store technology, and it helps to determine all data which to be sent and take decision which packets to send firstly.

• Active hubs have extra features to fix all lost packets and hold direction and distribute of other pending packets. It helps to amplify weak signal (which are received in the port) into stronger signal before its transmission to other ports.

• If, any time connecting hardware device is playing poor performance over the network then it helps to convert into strong signal which are viewable by other network devices with passive hubs. It offers to continuity of service in the LAN network.

• It provides some related diagnostic abilities in the LAN network. They will be capable to resync all packets and broadcast them again. Some cables are getting electromagnetic troubles and halt the packet from entering into destination port. They are capable to retime the port for slower delivery as well as error-prone connections.

• It needs AC power to perform all tasks, and maintains the electronic components.

Intelligent Hub:

• It has small size compare to passive and active hubs.They contain several management softwares which help to identify all issues in the network and fix them. It provides great performance for LAN network.

• If, any problem is occurred with any physical devices then it is easily diagnosed and solution to those problems with using of management data which can be purified by hub.

• Monitoring the centralized management tools, which help to expend network that work on the devices to search poor functioning devices.

• It has higher transmission rate to various devices, and they have their standard unit for transmission rate as 10, 16, in the speed of 100Mbps to desktop.

Working of Hub

Network hubs works at physical layer of OSI model. Ethernet cable and plug are used in the network hub.

Hub play the role as centralized connection in between all network devices and manage data type, which is known as “Frames“. If frame is received, then it is broadcast to the port of targeted computer system, but after amplifying it.

All communication is divided into three parts, which is done between multiple hosts.

• Unicast
• Broadcast
• Multicast

Unicast: Unicast communication is done in between from one device to further device.

Broadcast: In broadcast communication, one host communicates along with whole other host over the network.

Multicast: This multicast communication can be possible in between one host to further some other hosts.

So, you can say that hub is a broadcast method of the communication.

• It is capable to work on Half-duplex way that means communication can be possible to single device at once or one side transmission is happened in a same time duration as well as other end only one node has right to receive data.

• If, data or frame approach the port then hub try to copy this data and further transfer it to other nodes. It sends data to all devices which are linked with hub, instead of sending data to targeted device.

• In this process, it does not fetch IP addresses as well as not able to filter data. The hub has not any information about where to transfer data as well as not able to identify best path to traverse too.

• Due to this reason, to increase the traffic congestion while sending and receiving data over multiple devices.

• For making connection in between one hub to other network hub, UTP or STP or coaxial cables are used.

Advantages of Network Hub

There are few benefits and features of network hub, such as –

• It allows to all clients to make connection with the network so they are capable to share and conversations. Due to this, network protocol analyzer is used by hubs.

• Hub works like for broadcast model, so it does not get any effect on the network performance.

• Hub is cost effective as well as simplicity than switches, so they can save money.

• Hub is able to make connection with different types of Medias as centralized hub.

• Hubs help to extend the area of the network so easy to make communication.

Disadvantages of Hub

• Hub can’t support collision domain as well as re-transmission of frames so due to this, to increase the probability of collision.

• Hub can’t support communication in the full duplex mode so due to this, data can be send only at once given time duration.

• Hub is not capable to support large network architecture like as token ring. If multiple devices are added then network gets degrade performance.

• Hub doesn’t filter information so it sends data to all linked devices.

• It is not capable to decrease the network traffic.

• It has not any storage memory.

• It doesn’t provide better data security.

• Hub can’t offer dedicated bandwidth for each device, it is to share them. So, it gets more wastage of bandwidth.

FAQs (Frequently Asked Questions)

What is hub in computer network?

A network hub is special device that helps to broadcast data to each node and computer or Ethernet based device linked to it. A network hub is best solution for simple local area network (LAN) environments.

What is the purpose of a network hub?

A network hub provides the point of connection for each device over the local area network; and hub works on OSI (Open Systems Interconnection) Layer 1.

What are the different types of Hubs in the computer network?

There are three different types of network hubs which are used in the computer networking like as Passive Hub, Active Hub, and Intelligent Hub. Each one is explained above in this post; you can check them.

How does hub work in networking?

In this article, already we have been explained about proper working of hub in the networking; you can check them.

What are main functions of a hub in networking?

• It allows to all clients to make connection with the network so they are capable to share and conversations. Due to this, network protocol analyser is used by hubs.
• Hub works like for broadcast model, so it does not get any effect on the network performance.
• Hub is able to make connection with different types of Medias as centralized hub.

What are the advantages and disadvantages of hub in networking?

Through this post, already we have been covered many advantages and disadvantages of hub in the computer network with ease; you can read them.

What are the advantages of hub over a switch?

A network hub allows to connect several Ethernet devices as a one unit; whereas network switch are able to link multiple devices along with one LAN network.

What is the main disadvantage of hub instead of switch?

A network hub are not capable to get differentiate in between the devices over the network. When one node tries to arrive another on the hub based network, then computer will broadcast the message to each other computer system over the network; cause of this, consume more bandwidth in every transfer.

Final Verdicts

Through this post, you have been completed educated about what is hub with its Types and Working; involving with many advantages and disadvantages of hub in networking with ease. If this article is fruitful for you, then please share it along with your friends, family members or relatives over social media platforms like as Facebook, Instagram, Linked In, Twitter, and more.

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Happy Learning!!