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Casual Articles - Cisco CCNA Certification: An Illustrated Guide To Ethernet CSMA/CD
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If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collisio
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The first Ethernet standards were 10Base5 and 10Base2. Network devices such as hubs, repeaters, and switches weren't in the picture yet. The sole physical components were the Ethernet cards in the computers and coaxial cable. The cable made up a bus that all the connected devices would use. (This type of bus is referred to as a shared bus.)
If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collision
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The first Ethernet standards were 10Base5 and 10Base2. Network devices such as hubs, repeaters, and switches weren't in the picture yet. The sole physical components were the Ethernet cards in the computers and coaxial cable. The cable made up a bus that all the connected devices would use. (This type of bus is referred to as a shared bus.)
If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collisio
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The first Ethernet standards were 10Base5 and 10Base2. Network devices such as hubs, repeaters, and switches weren't in the picture yet. The sole physical components were the Ethernet cards in the computers and coaxial cable. The cable made up a bus that all the connected devices would use. (This type of bus is referred to as a shared bus.)
If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collisio
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If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collisio
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If only one of the hosts on this network wanted to send data, there would be no problem. When two hosts would send at the same time, though, a collision would occur. When the signals would collide, both would be rendered unusable. A standard had to be created that would have the hosts follow rules relating to when they could send data and when they could not. This standard is Carrier Sense Multiple Access with Collision Detection, referred to as CSMA/CD.
If two of the three computers on this segment send data at the same time, a collision occurs.
To avoid this, CSMA/CD forces computers to “listen” to the Ethernet before sending in order to make sure that no other host on the wire is sending. When the Ethernet segment is not busy, the device that wants to send data can do so. The sender will then continue to listen, to make sure that sending the data didn’t caus
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