cake vs sfq and fq_codel looks great! You already have fq_codel in the graphs, do you mean codel? In terms of simulating CMTS I am trying to simulate a cable connection. Is the following reasonable? ===========8<=========== servers --- delay --- isp --- mbox --- clients delay: tc qdisc replace dev delay.r root netem delay ZZms rate XXXmbit limit 100000 tc qdisc replace dev delay.l root netem delay ZZms rate XXXmbit limit 100000 isp: tc qdisc replace dev isp.l root bfifo limit 1024k tc qdisc replace dev isp.r root bfifo limit 1024k mbox: tc qdisc replace dev mbox.l root cake bandwidth YYYmbit tc qdisc replace dev mbox.r root cake bandwidth YYYmbit ===========8<=========== George On Fri, Dec 1, 2017 at 2:23 PM, Dave Taht wrote: > That's really hard to argue with. An fq_codel same conditions (and > pfifo and pie) might be interesting here. > > On Thu, Nov 30, 2017 at 9:13 AM, Georgios Amanakis > wrote: > > I gave high RTT with high bandwidth a try: > > server -- delay -- mbox -- client > > netserver 300/300ms 45/900mbit flent > > > > I had to run flent with "-s 0.61" in order to avoid errors with fping > dying > > prematurely. > > Comparing noack, ack, and ack-aggressive, ack seems to give the highest > > download rates. > > Cake was setup with "rtt 600ms". > > > > George > > > > On Wed, Nov 29, 2017 at 6:25 PM, Jonathan Morton > > wrote: > >> > >> High RTT with relatively high bandwidth is traditionally considered > >> challenging, and is representative of Australasian and satellite > >> connections. Definitely do some of those. > >> > >> Low bandwidth should also be interesting. DSL at 4/1 Mbit is typical > >> entry level package here. > >> > >> - Jonathan Morton > >> > >> > >> _______________________________________________ > >> Cake mailing list > >> Cake@lists.bufferbloat.net > >> https://lists.bufferbloat.net/listinfo/cake > >> > > > > > > _______________________________________________ > > Cake mailing list > > Cake@lists.bufferbloat.net > > https://lists.bufferbloat.net/listinfo/cake > > > > > > -- > > Dave Täht > CEO, TekLibre, LLC > http://www.teklibre.com > Tel: 1-669-226-2619 >