difference between switch router and hub pdf

Difference between switch router and hub pdf

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The Differences between Hubs, Switches, and Routers

What’s the Difference Between a Hub, a Switch, and a Router?

What’s the Difference Between a Hub, a Switch, and a Router?

The Hub and Switch are the networking devices which appear to be similar and physically used as a star topology. However, there are several differences between Hub and switch. The prior difference is that logically the hub works like a bus where the same signal is transmitted to all the connections.

The Differences between Hubs, Switches, and Routers

Repeater — A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network. An important point to be noted about repeaters is that they do not amplify the signal. When the signal becomes weak, they copy the signal bit by bit and regenerate it at the original strength.

It is a 2 port device. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations. Hubs cannot filter data, so data packets are sent to all connected devices.

In other words, collision domain of all hosts connected through Hub remains one. Also, they do not have the intelligence to find out best path for data packets which leads to inefficiencies and wastage. Bridge — A bridge operates at data link layer. A bridge is a repeater, with add on the functionality of filtering content by reading the MAC addresses of source and destination. It is also used for interconnecting two LANs working on the same protocol.

It has a single input and single output port, thus making it a 2 port device. Switch — A switch is a multiport bridge with a buffer and a design that can boost its efficiency a large number of ports imply less traffic and performance. A switch is a data link layer device. The switch can perform error checking before forwarding data, that makes it very efficient as it does not forward packets that have errors and forward good packets selectively to correct port only.

In other words, switch divides collision domain of hosts, but broadcast domain remains same. Routers — A router is a device like a switch that routes data packets based on their IP addresses. Router is mainly a Network Layer device. Routers normally connect LANs and WANs together and have a dynamically updating routing table based on which they make decisions on routing the data packets.

Router divide broadcast domains of hosts connected through it. Gateway — A gateway, as the name suggests, is a passage to connect two networks together that may work upon different networking models. They basically work as the messenger agents that take data from one system, interpret it, and transfer it to another system.

Gateways are also called protocol converters and can operate at any network layer. Gateways are generally more complex than switch or router.

Brouter — It is also known as bridging router is a device which combines features of both bridge and router. It can work either at data link layer or at network layer.

Working as router, it is capable of routing packets across networks and working as bridge, it is capable of filtering local area network traffic. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. Attention reader! Writing code in comment? Please use ide. Skip to content.

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What’s the Difference Between a Hub, a Switch, and a Router?

By Swati Tawde. A Hub is a case where the devices are connected and gathered in a certain physical location, whereas a switch is a case where the network connection of multiple devices are centralized in a specific location. Hub is usually implemented using passive device types, and switch is typically implemented using active device types. The transmission mode and speed of a hub are half and 10mbps, respectively, while the switch has full or mode transmission mode and speed as high as 1Gbps. This hub is also known as a repeater that transmits the amplified signal to every port except the port from where the signal was received. A hub is used to connect networking devices physically and to successfully generate multiple station hierarchies. Hubs can not intelligently communicate and process information for layer 2 and layer 3.

The key difference between hubs, switches and bridges is that hubs operate at Layer 1 of the OSI model, while bridges and switches work with MAC addresses at Layer 2. Hubs broadcast incoming traffic on all ports, whereas bridges and switches only route traffic towards their addressed destinations. Hubs provide a dedicated physical connection for every device, which helps reduce the possibility that a failure of one computer will cause all computers to lose connectivity. However, because a hub is still a shared bandwidth device, connectivity is limited to half-duplex. Collisions remain an issue as well, so hubs do not help improve the performance of the network. Hubs are essentially multiport repeaters.

What’s the Difference Between a Hub, a Switch, and a Router?

Hub Switch and Router are the most commonly used networking devices that are used to connect nodes such as PC, printer, scanner, projector, etc in a network. Here in this post, I am going to explain to you about what is the difference between Hub Switch and Router in Tabular Form. Hub is a networking device that operates at the physical layer of OSI model. It is the simplest networking device hence has a low cost.

Difference between Hub Switch and Router in Tabular form

Router and switch both are the connecting devices in networking. A router is used to choose the smallest path for a packet to reach its destination.

What Is a Hub?

У него будет пистолет… От этой мысли у Стратмора свело желудок. Кто знает, что произойдет, прежде чем он решит освободить Сьюзан… если он ее вообще освободит. Я обязан позвонить в службу безопасности, - решил.  - Что еще мне остается? - Он представил Хейла на скамье подсудимых, вываливающего все, что ему известно о Цифровой крепости.  - Весь мой план рухнет.

Что бы ни произошло на самом деле, мы все равно выглядим виновными. Яд, фальсифицированные результаты вскрытия и так далее.  - Стратмор выдержал паузу.  - Какой была твоя первая реакция, когда я сообщил тебе о смерти Танкадо. Сьюзан нахмурилась.

 Танкадо играет с нами в слова! - сказал Беккер.  - Слово элемент имеет несколько значений. - Какие же, мистер Беккер? - спросил Фонтейн.

3 comments

  • Menqui M. 10.06.2021 at 04:11

    Repeater — A repeater operates at the physical layer.

    Reply
  • Exuperancio S. 11.06.2021 at 12:50

    Technology in terms you understand.

    Reply
  • Gradasso P. 11.06.2021 at 16:36

    In an Ethernet network, there are some networking devices that play their roles at various levels such as hubs, switches and routers.

    Reply

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