Pascal Thubert (pthubert) writes: > But if the ack is sent and not received then the parent does not > allocate the cells and the child uses them...
And ACK only tells you that the frame was received, it does NOT mean that the frame was processed. I.e. the recipient end might send an ACK, and then send the frame to the upper layer, but if there is not enough buffer space available there, it might drop it before it actually reaches the upper layer. So do not use ACK for anything else than indication that there is no need to retransmit this frame anymore as other end already received it (altough it might have dropped it after that, but retransmissions does not help with that). -- [email protected] _______________________________________________ 6tisch mailing list [email protected] https://www.ietf.org/mailman/listinfo/6tisch
