Asked By
amjad
400 points
N/A
Posted on - 06/17/2011
Hi friends,
What is main difference between hub, switch and router?
In which layer do these devices operate?
Thanks for your help.
Need information regarding Hub, Switch and Routers
Hubs switches and routers all these are devices that connect to the internet or other networks.
Each of them have more then two ports.
HUB
This is a simple, small and inexpensive device, that conjunct two or more computers with each other. The job that is performed by the hub is very simple and easy. It receives data from one port and sends it to another computer, from another port. Â That is its work or duty. The hub is the fastest way to connect one computer to the other computer. Â It lies in the physical layer which has no IP address. Normally hub is used to connect small area network and hub can be operated by broadcast model.
Switch
The other networking device is switch. This is the small hardware device which joints multiple computers to each other in the LAN. Switch is an intelligent device and more expensive than the hub. The main work of the switch is to inspect the data sent to other computers. It sends the data to specific destinations. The switch is normally bigger than the hub device and contains much intelligence than the hub device. Switches use a virtual circuit model. Switching, includes moving packets between two or more devices on the same network. Switches operate at layer 2 of the OSI Model.
RouterÂ
A router is a hardware device, that connects multiple networks together. These networks may have wire or wireless networks. In simple words router is the computer, that can easily programs, handles, manipulates and routes the data that is being given to it. Router involves moving the data packets from networks. On the other hand routers work at layer 3 of the OSI Model.
I think this is enough to understand the differences between the above mentioned three devices.
Thank You.
Need information regarding Hub, Switch and Routers
Hub operates on a physical layer. Â Switch operates on data link layer and Router operates on network layer. Router uses logical address or IPÂ address. Switch uses a physical address or MAC address.
Answered By
nelinkol
0 points
N/A
#125532
Need information regarding Hub, Switch and Routers
Hubs, switches, and routers are all devices that let you connect one or more computers to other computers, networked devices, or to other networks. Each has two or more connectors, called ports; into which, you plug in the cables to make the connection.
A router is a better networking device than switch or hub. Hub switch and router have same physical appearances, although routers differ in inner functioning.
Routers are physical devices that join multiple wired or wireless networks together. Technically, a wired or wireless router is a Layer 3 gateways, meaning that the wired/wireless router connects networks (as gateways do), and that the router operates at the network layer of the OSI model.
Layer for router: Home networker often uses an Internet Protocol (IP) wired or wireless router, IP being the most common OSI network layer protocol. An IP router such as a DSL or cable modem Broadband router joins the home's Local Area Network(LAN) to Wide Area Network(WAN) the of the Internet.
A network switch is a small hardware device that joins multiple computers together within one Local Area Network.
Network switches appear nearly identical to network hubs but a switch generally contains more intelligence (and a slightly higher price tag) than a hub. Unlike hubs, network switches are capable of inspecting data packets as they are received, determining the source and destination device of each packet, and forwarding them appropriately. By delivering messages only to the connected device intended, a network switch conserves network bandwidth and offers generally better performance than a hub.
Layer for switch: Technically, network switches operate at layer two (Data Link Layer) of the OSI model.
In computer networking, a hub is a small, simple, inexpensive device that joins multiple computers together. Many network hubs available today support the Ethernet standard. Other types including USB hubs also exist, but Ethernet is the type traditionally used in home networking.
Layer for hub: Ethernet hubs operate as Layer 2 devices in the OSI model, the same as network switches. Although offering comparable functionality, nearly all mainstream home network equipment today utilizes network switch technology instead of hubs due to the performance benefits of switches. A hub can be useful for temporarily replacing a broken network switch or when performance is not a critical factor on the network.
Hope it will end all your queries and doubts.
Neil
