node rejects to receive any more data from its upstream node. This makes the upstream node to become
congested and thus, it also starts rejecting the data coming from its upstream node. Therefore, they drop
all the data coming from the upper node. This procedure continues and eventually, the congestion infor-
mation reaches the original source of flo, which may then slow down the flowof data. As backpressure
begins with the node where congestion is detected firstand propagates back to the source, this technique
is a kind of explicit feedback algorithm.
Backpressure technique can be applied only in vi
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