When a frame is corrupted on a bus topology, it never reaches its destination. The bus topology has a method called ACK. ACK for acknowledgment sent on the back of each request. So if the destined computer gets the packet it sends back an acknowledgment signal. Therefore it the first computer sent a corrupted frame if the time-out occurs meaning it did not receive an ACK back then the ARQ(automatic repeat request) is called and the original re-sends its message until it receives its ACK.
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