Retransmission is a concept whenever one party sends something to the other party and it retains a copy of the data it sent until the recipient has acknowledged that it received it. It is the basic mechanisms used by protocols operating over a packet switched computer network to provide reliable communication. E.g. TCP which is suffers poor performance in lossy wireless networks. It is a identical with (ARQ) is the resending of packets which have been either damaged or lost.

Retransmissions are significant and you should have a look at retransmissions to determine:

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• The first one is whether they are intermittent or continuous.

• The second one is what is the perimeter where you can observe them for which client zone, for all servers or one and what they tell us in the end is that some packets are not reaching the other hosts or that acknowledgment packets are not getting back to the sender.