Hi, while looking at the PIE presentation http://www.ietf.org/proceedings/86/slides/slides-86-iccrg-5.pdf, slide 6 shows that RED is far away from the PIE queuing delay. However, I'm not sure that this comparison is really fair if looking at the choice of the parameters. The buffer limit is set to 2000 packets, which is IMHO too large for a BDP of 10Gbit/s * 100µs = 125000 bytes. Assuming your average packet size of 1000 bytes we get 125 packets as buffer size. Then Min_th = 25 packets and Max_th = 63 packets in contrast to Min_th=400 packets if you use a buffer for 2000 packets. For 25 packets you would also get a queuing delay of only 20µs for RED which is then close to the PIE target... Was there a particular reason for using a 16x larger buffer than required? Am I missing something here?
Regards, Roland _______________________________________________ aqm mailing list [email protected] https://www.ietf.org/mailman/listinfo/aqm
