Hello, all! I have some doubts:
Let's suppose i have a CTP network made out of 2 nodes only (this is a test I ran), the sink and a "standard". Now let's assume that I step apart these two nodes for as far as they're barely "visible" to each other (I found this to be around 60 meters). Faced whith this situation, I observed several packages being re-sent by the "standard" node into the sink, never failing the order (i analysed the sequence number), and i presume this to be caused by the ACKs that never got back, thus causing the re-sending. Stepping them a little bit farther apart, i started noticing some gaps in the sequence number, as if some packets were totally lost. I also noticed that if I stay at 60 meters and have relatively fair transmission, going to 80 and getting back to 60 doesnt always provide same delivery rates (sometimes i didnt get anything when going back to 60, even though i received something before). So my questions are: - How many attempts does it take for a packet to be discarded from retransmission, after many attempts without getting ACKs back? TEP 123 says they're placed in a queue for future retransmission, but I presume they don't stay there forever? Or else I wouldnt notice sequence number gaps in the received packages...? Does the CTP tree breaks here and starts looking for a new path? - If the link gets weak enough, does the "standard" node re-attempt to recreate a CTP tree and discards all queued messages? How weak (or strong) needs a link to be for the nodes to establish a route? I ask this because the apart/together thing, where it seems the tree wasnt being "rebuilt" when it was perfectly healthy minutes before in the same position (with the several retransmission to assure packet delivery). Thank you for your help! Pedro
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