difference betwwen: switches - routers - hubs

[KryptoS]

Hey there,

can someone tell me what the difference is between: switches, routers, hubs and bridges???

thank you


The One And Only KryptoS

 

[orange]

well, a router is connecting a network to shared resources such as internet, a printer, etc. A hub is connecting two computers together and generally it's the building block of a typical network. Usually a hub will be connecting a network of computers to a router with internet access or to another network via another hub or switch. Switch is like a hub but it is often used to connect two or more hubs or even in place of a hub. Its advantage is that it transfers data faster and better. For example a hub will split the bandwidth of internet access evenly where as a switch will allow two computers to have the same bandwidth. I am not sure about a bridge but I think is the connection (expansion) between two networks. I personally have a router for internet and a switch that hooks up my pcs. Of course nowadays it is not uncommon to find a router with a build in switch. If you are serious about setting up your own network, buy a router with a build in switch.

----------gm

 

[Tasslehoff]

I think a bridge is a generic term for hubs and switches.

 

[Guest_imported]

A repeater receives a packet of data and then reproduces it, like an amplifier. A bridge receives a packet and then retransmits it on only the port where the destination is known to be (mac address). A hub is a multiport repeater.
A switch is a multiport Bridge. A router receives and transmits packets at a higher level of the OSI model and works on IP ,IPX , or protocols not on Mac adresses.

 

[Guest_imported]

Kaun Mar gaya

 

[Guest_imported]

A router is commonly reffered to as Layer 3 switch, a switch is commonly reffered to as a layer 2 switch, a bridge can be a PC, Router, etc. Considering also the bandwidth splitting or conservation parameter. See also previous replys.
But with the advent of new technologies, the differences are becomming less obvious.

 

[Guest_imported]

can anyone tell me switch works on which layer

 

[necron99]

the easyes way to think about it is
a hub is the most basic... when it recives a signal it simply repeats it to all other ports.
a switch recives a signal and looks for where it goes... i decides which port to repeat it to by searching a directry of MAC addresses
a Router works as a border between networks or the internet. it recives a signal and looks at the IP address [or other protocal that may be in use] and decides if it should send it to the other network
routers also work for translators between networks not all subnets can not "talk" to eachother without a translator.

im not going to go into ISO levels or such cuz frankly i forgot most of them

 

[bpvwebdesigns]

A switch is commonly on Layer 2 of the OSI Model

For information on the classifications of network devices please visit the following links:

*RECOMMENDED*

http://www.itp-journals.com/OSI_7_layer_model_page1.htm

Others of Similar Interest:

http://www.rad.com/networks/1994/osi/intro.htm

http://www.certyourself.com/OSIguide.shtml

Hope this Helps, Please RATE my post.

Sincerely,

Brian Velkavrh ___________________________________________________

Brian Velkavrh
Sr. Consultant - BPV Webdesigns

http://www.bpvwebdesigns.com

Network+ Certified Engineer

 

[Guest_imported]

pata nahi koon mura koye hurami maloom hota hay... mar gaya murdood!