Setting lower bound of 2 MSS for cwnd with ECN may result in symptoms of congestion collapse with certain specific conditions, e.g., if the actual (physical) queue size is very large and there is a mix of ECN-capable (ECT) and not ECN-capable flows. When the number of ECN capable flows increase the start starving the not ECN-capable flows as ECT flows stop responding to congestion and start increasing the queue such that AQM has to drop almost all not ECT packets.
The text was updated successfully, but these errors were encountered:
Markku Kojo said:
The text was updated successfully, but these errors were encountered: