CODEWITHSUNDEEP
network-programmingipethernet
robert
robert

Reputation: 3

Can CSMA/CD in ethernet tell the sender when the client has gotten a packet that is "damaged"?

If a client receives a damaged packet then it will know that after comparing the packet's checksum to the one in the header. But can a sender know when a packet has reached the client in a damaged form?

Upvotes: 0

Views: 270

Answers (1)

cnicutar
cnicutar

Reputation: 182664

First of all, it seems you are making a confusion. CSMA/CD is for detecting when somebody else is using the link so that a collision doesn't happen. It's its only purpose.

Second, ethernet senders cannot find out if the frame they sent arrives malformed. There is no acknowledgement. The upper-layer protocols must take precautions.

Upvotes: 1

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