Basically, with a hub each network card has to wait it's turn to transmit data, therefore its slower than a switch which allows them all to talk(transmit) at the same time switching the data stream directly to the ports that need to receive the data. The switch knows this by comparing the IP address to the MAC ADDRESS of the card, making a switch a lot more intelligent than a hub.
Switches don't have many collisions in packets because they only switch the packet to the port that requires it. A hub repeats a packet across all ports and causes more collisions as a result. As a result, your traffic is faster with a switch over a hub.
You get faster packet transport because the packet will be sent directly to the device that needs it, not repeated out each port even though several of the receiving devices do not need or want the packet.
As a result, you also eliminate or substantially reduce the collisions on the LAN by using a switch rather than a hub.
Switches send packets only to the destination node while hubs share data to all connected devices. Throughput is increased with switches because of the lower amount of network overhead and lower amount of packet collisions.
A hub is a dumb device that simply routes all incoming traffic to all of the other ports, regardless of addresses. Its main advantage - speed - is greatly offset by the added overhead and congestion created by basically spamming messages every which way (especially on greatly congested systems).
In practically every networking scenario involving more than two computers, using a hub is a worse option to using at least a switch.
The only practical application of a hub where there would be no added overhead would be when connecting two computers together. Any and all traffic routed would flow to the intended recipient anyway, and a hub would perform much better than any other of the three core infrastructure devices (the other two being a switch and a router). Of course, in this application, the hub would essentially take the role of a crossed Ethernet cable, and using a crossed Ethernet cable for this purpose is still much more advisable (mainly due to cost, but latency as well).
A managed hub (and I use the term very looselyhere) could provide some benefits over an unmanaged switch, but these would be in specific applications, and this would deal with very specific hardware configurations as well.
b. Switches can assign dedicated channels to every node, making their transmissions more secure.
because switch has higher bandwidth capacity
Switches and hubs both are networking devices. The main difference between both is of security. Switches make transmission more secure than hubs.
You can use either a network hub or a network switch to set up your network
Switch
Most computers today consist of many processors. Most business computers are connected via hub/switch/access point. Most broadband home users are connected to an access point, only fraction of current home computers use a hub/switch.
A switch. Each port has a separate path to each of the other ports on the switch. On a hub, all the ports are tied together into 1 single port. Think of a switch as an 4 lane freeway with 8 entrances and exits; a hub is a one lane highway with the same 8 entrances and exits. It can pass data from only one port to another port- switch can connect 4 ports to the other 4 ports (or 8 to 8 or 16 to 16, you get the idea) A switch is quite a bit more complicated AND is generally more expensive: between 20% and 300% more than a hub with the same number of ports BUT it's very useful on a busy network (business especially.)
If you don't have enough ethernet sockets in a router, you can plug a switch or a hub into the socket. The hub or switch will supply support for additional ethernet cables.
what are the similarities between network switch and a hub
A crossover cable is used to connect a Hub or Switch to another Hub or Switch - or a PC to another PC.
Port in hub/switch refers to the interface where you connect your computers.
it is a switch in hubs
Hubs and Switches make 1 ethernet connection out of as many is on the hub or switch.
Hubs and Switches make 1 ethernet connection out of as many is on the hub or switch.
I suggest a hub as they are more reliable.
Most of the time, a switch will send information only to the destination, while a hub will send to all of its ports. That makes the hub inefficient - in a hub, only one computer can transmit at a time.Most of the time, a switch will send information only to the destination, while a hub will send to all of its ports. That makes the hub inefficient - in a hub, only one computer can transmit at a time.Most of the time, a switch will send information only to the destination, while a hub will send to all of its ports. That makes the hub inefficient - in a hub, only one computer can transmit at a time.Most of the time, a switch will send information only to the destination, while a hub will send to all of its ports. That makes the hub inefficient - in a hub, only one computer can transmit at a time.
It's very easy to add a switch to a hub. For consumer level switches, you just plug it in.
a switch
i dont even no what that is
It depends on the number of clients in the LAN segment, but in general a switch is more efficient than a hub.