Need information regarding Hub, Switch and Routers

Need information regarding Hub, Switch and Routers

Hub operates on a physical layer.  Switch operates on data link layer and Router operates on network layer. Router uses logical address or IP address. Switch uses a physical address or MAC address.

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