What is data collision?
What is data collision?
My hub has a indicator indicates data collisions. When it blinks it means net work has data collision. But what is a data collision? Is it a problem, if it is how can I correct it? Thank you for your time.
a data collision is when two or more nodes(PC or other) send data at the same time. This usually happens in a high activity ethernet enviroment. if it blinks alot of the time consistently, and affects the networks performance. then you should look into it. if it only blinks randomly every once and a while and doesnt affect day to day operations, then dont worry about it. collisions are bound to happen regardless, unless you use a switch.
Found this information at http://whatis.techtarget.com/definitionsCategory/0,289915,sid9_gci211814_tax1668,00.html
Might help explain.
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Collision
In an Ethernet network, a collision is the result of two devices on the same Ethernet network attempting to transmit data at exactly the same time. The network detects the "collision" of the two transmitted packets and discards them both. Collisions are a natural occurrence on Ethernets. Ethernet uses Carrier Sense Multiple Access/ Collision Detect (CSMA/CD) as its method of allowing devices to "take turns" using the signal carrier line. When a device wants to transmit, it checks the signal level of the line to determine whether someone else is already using it. If it is already in use, the device waits and retries, perhaps in a few seconds. If it isn't in use, the device transmits. However, two devices can transmit at the same time in which case a collision occurs and both devices detect it. Each device then waits a random amount of time and retries until successful in getting the transmission sent.
Might help explain.
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Collision
In an Ethernet network, a collision is the result of two devices on the same Ethernet network attempting to transmit data at exactly the same time. The network detects the "collision" of the two transmitted packets and discards them both. Collisions are a natural occurrence on Ethernets. Ethernet uses Carrier Sense Multiple Access/ Collision Detect (CSMA/CD) as its method of allowing devices to "take turns" using the signal carrier line. When a device wants to transmit, it checks the signal level of the line to determine whether someone else is already using it. If it is already in use, the device waits and retries, perhaps in a few seconds. If it isn't in use, the device transmits. However, two devices can transmit at the same time in which case a collision occurs and both devices detect it. Each device then waits a random amount of time and retries until successful in getting the transmission sent.