What are the differences between an Ethernet switch and a
hub?
Answer Posted / mvadivell
In a hub, a frame is passed along or "broadcast" to every
one of its ports. It doesn't matter that the frame is only
destined for one port. The hub has no way of distinguishing
which port a frame should be sent to. Passing it along to
every port ensures that it will reach its intended
destination. This places a lot of traffic on the network
and can lead to poor network response times.
Additionally, a 10/100Mbps hub must share its bandwidth
with each and every one of its ports. So when only one PC
is broadcasting, it will have access to the maximum
available bandwidth. If, however, multiple PCs are
broadcasting, then that bandwidth will need to be divided
between all of those systems, which will degrade
performance.
A switch, on the other hand, keeps a record of the MAC
addresses of all the devices connected to it. With this
information, a switch can identify which system is sitting
on which port. So when a frame is received, it knows
exactly which port to send it to, which significantly
increases network response times. And, unlike a Hub, a
10/100Mbps switch will allocate a full 10/100Mbps to each
of its ports. So regardless of the number of PCs
transmitting, users will always have access to the maximum
amount of bandwidth. It's for these reasons
Is This Answer Correct ? | 17 Yes | 2 No |
Post New Answer View All Answers
Will this WIC operate in the 1E2W, 2E2W, or 1E1R2W?
What Cisco IOS Release is required?
What is the difference between routers and switches
Are Voice applications supported on this WIC?
What is the difference between routers, switches and hubs?
Does the WIC support QoS?
The WIC is ATM based—where is the SAR?
Where do the Cisco 1700, 2600, and 3600 with ADSL WIC fit into the Cisco product line?
Is this WIC physically the same WIC that has been available on the Cisco 1700 series for some time?
Routers are used in which layers?
Why did Cisco develop this product?
Does the WIC support MLPPP?
How many WICS can be installed in a Cisco 2600/3600?
How is the Cisco 1700/2600/3600 with the ADSL WIC positioned in conjunction with the Cisco 827?
What is routing table?