A hub forwards packets it receives through one port to every other port on the device. A switch will read packet headers and identify which machines are connected to which port based on the information they send. Any packets addressed to those machines will only get sent to that port of the switch. A router looks at packet headers to determine which port it needs to forward a packet through, and also will translate packets between different protocols if needed. A router can also define subnets and will filter traffic as needed. Routers usually include DHCP, port forwarding capabilities and a whole host of other things usually controlled by software and therefore user customizable.
Hubs, Switches, Routers A Hub is, in its simplest form, just like a mains multiplug unit. There is no intelligence or circuitry in it. More complex units may incorporate an amplifier or repeater. The network signal goes into one port and out of all the others. This is a Layer 1 device. A Switch has a small level of intelligence, in that it can open a message, check the IP address, and direct the message packets to the port on which the device with that IP address resides. It cannot modify IP addresses or see addresses outside of the range of the 'home' network. This is a Layer 2 device. A Router can read IP addresses, and direct the messages to another network with different IP addresses to the originating network. The Router software can build up an address table, so that it 'knows' where other devices are. This is a Layer 3 device. CT
a hub is a central point in a network through which all the wires pass, a switch connects more than 2 LAN networks
The difference is in the way how they process communications between two or more computers. If you send some information to one computer only using hub it will resend the information to all computers in the network. When switches resend information to the only one computer.
Hi all,The main differance between the a switch and Hub is the hub will disribute the data among the system.(For eg: a hub have 8 port and in each system is connected and if a a system send a data of 100 mbps then all the system will share the data among themself and by the end system 100/8 it will send or get around 12.5mbps.) but incase of switch is won't do such things instead it will send the data as the same amount as it sends from the source.
Yes. The switch is acting as a "hub" between the various clients on the network.
no difference whatsoever
You would have to be a little more specific.
A freewheel hub dose not make the pedals go forward when the backwheel is turning, a track hub dose.
A hub is a multi-port repeater, which means any signal from any connection is repeated to all other ports on the hub. This leads to more collisions as a result.A switch is a multi-port bridge, and contains packet switching so that the message is only switched out the port of the destination device, not across all ports. Thus, the collisions are very small.Switches and hubs can be used interchangeably in a network, with performance differences. The network does not know the difference.
100 meters
A crossover cable is used to connect a Hub or Switch to another Hub or Switch - or a PC to another PC.
switches does not have the database...much smarter than a hub.
This is actually just a modem. A hub is a device with multiple ports for connecting computers to each other. A hub is now rarely used as a network switch is a faster more reliable device. Confusion comes from people like BT who supply what they call a home hub, which is actually a wireless router, they use the term home hub to refer to the central point (as in hub of a wheel) connection, probably because it's bright young designers never heard of a network hub! A modern wireless router normally consists of a combined router, 4 or 5 port network switch and wireless access point in one, and a non wireless one is the router and network switch Mohammad Talha 009746411902