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TOPIC: WiFI not using CSMA/CD ?

WiFI not using CSMA/CD ? 9 years 10 months ago #28109

  • apit
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Hi there..
One of my CCNA instructor sais that WIFI technology (a,b,g, etc2) not using CSMA/CD protocol...Is it true?

WIFI still using ethernet technology..So how it send frame without using CSMA/CD protocol?

Re: WiFI not using CSMA/CD ? 9 years 10 months ago #28110

It uses CSMA/CA . Which is carrier sense multi access with collission avoidance .

Thanks
Patiot

Re: WiFI not using CSMA/CD ? 9 years 10 months ago #28114

  • apit
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Is this the reason why we cannot get 11Mbps per client using 802.11b standard?

Re: WiFI not using CSMA/CD ? 9 years 8 months ago #28624

The problem with WiFI is each client connected to an Access Point shares a channel. Hense only one Client can be sending at any time. You can not have 2 clients fully utilizing 11 mb at the same time.

You can find a good explination of this here:
networking.nitecruzr.net/2006/05/you-hav...-wifi-bandwidth.html
itgamers.blogspot.com
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