Re: [LARTC] Limited number of bands in PRIO qdisc
Patrick Reinhardt wrote: Hi! Am Mittwoch, 22. August 2007 21:27:52 schrieb Andy Furniss: Patrick Reinhardt wrote: returns: 'RTNETLINK answers: Invalid argument' I got a better error message than that - "priomap" index > TC_PRIO_MAX=15 Greping for TC_PRIO_MAX shows it's in both kernel and iproute2's copy of the headers - I don't know if you need to do both or not - but I would and recompile kernel and tc Thank you very much for this hint. Unfortunately my current idea would require about 1000 bands: To emulate a wireless network I have to assign a packet loss depending on the target IP address. The idea was to use a PRIO qdisc with n bands for n nodes and use filters to assign packets to the appropriate band depending on the target address. Since I am unsure about side-effects of an alteration of TC_PRIO_MAX to a signifficantly higher value, an alternative would be helpful. I suppose you could try ifb - but there is probably a define somewhere needing to be changed if you want 1000, but then you could have 16 prio on each. Andy. ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
Re: [LARTC] Limited number of bands in PRIO qdisc
Hi! Am Mittwoch, 22. August 2007 21:27:52 schrieb Andy Furniss: > Patrick Reinhardt wrote: > > returns: 'RTNETLINK answers: Invalid argument' > I got a better error message than that - > > "priomap" index > TC_PRIO_MAX=15 > > Greping for TC_PRIO_MAX shows it's in both kernel and iproute2's copy of > the headers - I don't know if you need to do both or not - but I would > and recompile kernel and tc Thank you very much for this hint. Unfortunately my current idea would require about 1000 bands: To emulate a wireless network I have to assign a packet loss depending on the target IP address. The idea was to use a PRIO qdisc with n bands for n nodes and use filters to assign packets to the appropriate band depending on the target address. Since I am unsure about side-effects of an alteration of TC_PRIO_MAX to a signifficantly higher value, an alternative would be helpful. Thanks in advance. Patrick ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
Re: [LARTC] Limited number of bands in PRIO qdisc
Patrick Reinhardt wrote: Hello, is it possible that the number of bands for the PRIO qdisc is limited to 16? tc qdisc add dev $DEVICE root handle 1: prio bands 16 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 succeeds but tc qdisc add dev $DEVICE root handle 1: prio bands 17 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 returns: 'RTNETLINK answers: Invalid argument' Is there any possibility to raise the number of bands to a higher value? Thank you in advance. I got a better error message than that - "priomap" index > TC_PRIO_MAX=15 Greping for TC_PRIO_MAX shows it's in both kernel and iproute2's copy of the headers - I don't know if you need to do both or not - but I would and recompile kernel and tc /include/linux/pkt_sched.h:#define TC_PRIO_MAX 15 Andy. ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
Re: [LARTC] Limited number of bands in PRIO qdisc
I answer randomly but, perhaps you have to give 17 parameters as well for the priomap. you have only 16 of them in your second example. Vincent. Le 22 août 07 à 13:24, Patrick Reinhardt a écrit : Hello, is it possible that the number of bands for the PRIO qdisc is limited to 16? tc qdisc add dev $DEVICE root handle 1: prio bands 16 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 succeeds but tc qdisc add dev $DEVICE root handle 1: prio bands 17 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 returns: 'RTNETLINK answers: Invalid argument' Is there any possibility to raise the number of bands to a higher value? Thank you in advance. Patrick ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc ___ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
