Hello ppl, I''m playing with the pfifo scheduler, its simple, and i cannot understand what''s wrong. So, i have test machine, with one interface eth0, and i want to send no more than 3 packets/sec out of that interface, so i do: tc qdisc add dev eth0 root pfifo limit 3 And i get pfifo scheduler on eth0 with limit of 3, but it sends as many packets per second as it wants, without delay or drop. How can i get it throttle if sended more than N packets/sec ? Thanks in advance -- Nikolay Datchev _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
On Saturday 21 June 2003 14:56, Nikolay Datchev wrote:> Hello ppl, > > I''m playing with the pfifo scheduler, its simple, and i cannot understand > what''s wrong. So, i have test machine, with one interface eth0, and i want > to send no more than 3 packets/sec out of that interface, so i do: > > tc qdisc add dev eth0 root pfifo limit 3 > > And i get pfifo scheduler on eth0 with limit of 3, but it sends as many > packets per second as it wants, without delay or drop. How can i get it > throttle if sended more than N packets/sec ?You can''t do this with the pfifo qdisc. You only create a pfifo qdisc that can hold 3 packets. But that does not mean that it will send 3 packets / seconds. Take a look at the htb, cbq or tbf qdisc for limiting bandwidth. Stef -- stef.coene@docum.org "Using Linux as bandwidth manager" http://www.docum.org/ #lartc @ irc.oftc.net _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
I''m using successfully all kinds of qdiscs, but i cannot find a solution to limit number of packets in one flow. Is there a way to do this with cbq, htb or tbf ? Not bandwidth in bits per second, but packets per second. Thanks, -- Nikolay Datchev On Sat, 21 Jun 2003, Stef Coene wrote:> On Saturday 21 June 2003 14:56, Nikolay Datchev wrote: > > Hello ppl, > > > > I''m playing with the pfifo scheduler, its simple, and i cannot understand > > what''s wrong. So, i have test machine, with one interface eth0, and i want > > to send no more than 3 packets/sec out of that interface, so i do: > > > > tc qdisc add dev eth0 root pfifo limit 3 > > > > And i get pfifo scheduler on eth0 with limit of 3, but it sends as many > > packets per second as it wants, without delay or drop. How can i get it > > throttle if sended more than N packets/sec ? > You can''t do this with the pfifo qdisc. You only create a pfifo qdisc that > can hold 3 packets. But that does not mean that it will send 3 packets / > seconds. > Take a look at the htb, cbq or tbf qdisc for limiting bandwidth. > > Stef > > -- > > stef.coene@docum.org > "Using Linux as bandwidth manager" > http://www.docum.org/ > #lartc @ irc.oftc.net > > _______________________________________________ > LARTC mailing list / LARTC@mailman.ds9a.nl > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ >_______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
On Sat, Jun 21, 2003 at 04:48:51PM +0300, Nikolay Datchev wrote:> I''m using successfully all kinds of qdiscs, but i cannot find a solution > to limit number of packets in one flow. Is there a way to do this with > cbq, htb or tbf ? Not bandwidth in bits per second, but packets per > second.How about using netfilter with "-m limit"? You can find about it at http://www.netfilter.org/documentation/HOWTO/packet-filtering-HOWTO.html Thanks, Alberto _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/