What are the benefits of replacing a hub with a switch?

Answer 1

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.

Answer 2

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.

Answer 3

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.

Answer 4

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.

Answer 5

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.

Answer 6

b. Switches can assign dedicated channels to every node, making their transmissions more secure.

Answer 7

because switch has higher bandwidth capacity

Answer 8

Switches and hubs both are networking devices. The main difference between both is of security. Switches make transmission more secure than hubs.