I will make more testing and comment. what´s the max value for burst? i did not find this in docs...
---------------------------------------- > Date: Fri, 27 Apr 2012 15:02:00 +0200 > From: ri...@iet.unipi.it > To: javier_9...@hotmail.com > CC: freebsd-ipfw@freebsd.org > Subject: Re: Dummynet and bursting! > > On Fri, Apr 27, 2012 at 12:40:05PM +0000, Javier - wrote: > > > > OK, but with increased burst to 5mbytes i have same results. > > > > the issue is the bandwidth, not the burst. > it is possible that the system has a bottleneck > similar to the 125k you are configuring. > Besides, the tcp window or socket buffer might be > small (say 64Kbytes) so you won't be able to > use the burst anyways. > > luigi > > > will try fresh install from freebsd (no pfsense), and the results will be > > posted later. > > > > > > > > Thanks! > > > > > > > > --------------------------------------------------------------- > > > > Transfer estimates are completely unreliable in general, > > you need time for tcp to open the window, plus the RTT > > of the connection influences the throughput, etc. > > > > You can perhaps make some reasonable test by setting a low > > bandwidth. Burst seems to work fine here (on stable/9), see below > > > > --- no pipes, no nothing --- > > > ping localhost > > PING localhost (127.0.0.1): 56 data bytes > > 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.079 ms > > 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.064 ms > > ^C > > > > --- one 10Kbit/s pipe, no burst --- > > > sudo ipfw add 100 pipe 1 proto icmp out > > 00100 pipe 1 ip from any to any proto icmp out > > > sudo ipfw pipe 1 config bw 10Kbit/s burst 0 > > > sudo ipfw pipe show > > 00001: 10.000 Kbit/s 0 ms burst 0 > > q131073 50 sl. 0 flows (1 buckets) sched 65537 weight 0 lmax 0 pri 0 > > droptail > > sched 65537 type FIFO flags 0x0 0 buckets 0 active > > > ping localhost > > PING localhost (127.0.0.1): 56 data bytes > > 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=134.602 ms > > 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=135.011 ms > > 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=135.019 ms > > ^C > > > > --- now increase the burst to 100Kbytes --- > > > sudo ipfw pipe 1 config bw 10Kbit/s burst 100K > > > sudo ipfw pipe show > > 00001: 10.000 Kbit/s 0 ms burst 102400 > > q131073 50 sl. 0 flows (1 buckets) sched 65537 weight 0 lmax 0 pri 0 > > droptail > > sched 65537 type FIFO flags 0x0 0 buckets 0 active > > > ping localhost > > PING localhost (127.0.0.1): 56 data bytes > > 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.070 ms > > 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.083 ms > > 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.066 ms > > ^C > > > > cheers > > luigi > > ---------------------------------------- > > > Date: Fri, 27 Apr 2012 13:49:41 +0200 > > > From: ri...@iet.unipi.it > > > To: javier_9...@hotmail.com > > > CC: freebsd-ipfw@freebsd.org > > > Subject: Re: Dummynet and bursting! > > > > > > On Fri, Apr 27, 2012 at 10:50:17AM +0000, Javier - wrote: > > > > > > > > I want to leave at cable speed n bytes, after n bytes apply the queue > > > > bw limit... > > > > > > and what are you seeing instead ? Do you have a trace or > > > something that shows that it does not work like this ? > > > > > > cheers > > > luigi > > > > > > > In Linux with htb this is done with cburst parameter... > > > > > > > > > > > > > > > > Regards! > > > > > > > > > > > > > Date: Fri, 27 Apr 2012 08:55:23 +0200 > > > > > From: ri...@iet.unipi.it > > > > > To: javier_9...@hotmail.com > > > > > CC: freebsd-ipfw@freebsd.org > > > > > Subject: Re: Dummynet and bursting! > > > > > > > > > > On Fri, Apr 27, 2012 at 04:57:20AM +0000, Javier - wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hello all!, i?m researching about bursting with dummynet?s pipes. i > > > > > > can?t find the way in order to make the burst paramter work under > > > > > > pipe command;pipe config ........ burst 500000 (500Kbytes)->not > > > > > > luck pipe config ........ burst 500000 queue 500Kbytes ->not luck > > > > > > These parameters seems to be ok under pipe show, but no effect on > > > > > > real escenario... traffic is anyway at same speed defiined by "bw". > > > > > > Any help/comment wll be appreciated...specially from Luigi! Is he > > > > > > alive on the list? Regards! > > > > > > _______________________________________________ > > > > > > > > > > can you clarify what you are expecting and what you are seeing ? > > > > > > > > > > cheers > > > > > luigi > > > > > _______________________________________________ freebsd-ipfw@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw To unsubscribe, send any mail to "freebsd-ipfw-unsubscr...@freebsd.org"
