Difference Between Hub And Switch


DIFFERENCE BETWEEN HUB AND SWITCH:

1.LAYER

Hub works in the PHYSICAL LAYER and the hubs are often termed as the Layer 1 devices of the OSI model.

A switch works in the DATA LINK LAYER and the switch is often termed as the Layer 2 device of the OSI model.

2. FUNCTION

The main function of a hub is to connect a network which consists of personal computers together. This can be accomplished by the use of a central hub.

The switch has various functions ranging from connecting devices, managing the VLAN (Virtual LAN) security and also manages ports.

3. DATA TRANSMISSION FORM

In the case of a hub, the data is sent in the form of electrical impulses or bits.

In the case of a switch, frames are used for data transmission in L2 switch and packets are used for data transmission in L3 switch.

4. PORTS

A hub has about 4/12 ports.

A switch is considered as a Multi-port bridge, that is why it has 24/48 ports.

5. TRANSMISSION TYPE

A hub follows the mechanism of Frame flooding which could be broadcast, unicast or multicast.

A switch firstly performs the broadcast, then it does the unicast and at last, the multicast if required or needed.

6. DEVICE TYPE

A hub is also known as a Passive device, which is without any software.

A switch is also known as an Active device, which is with software and also networking device.

7. TRANSMISSION MODE

In a hub, the basic transmission mode which is followed is a half duplex.

In a switch, the basic transmission mode which is followed is full/half duplex.

8. SPEED

The hub device can offer you a speed which is about 10Mbps.

The switch device can offer you speeds ranging from 10-100 Mbps and it can even offer a speed of 1 Gbps.

 

 

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