On Sunday 27 October 2002 04:10, Robert Davidson wrote: > When I was playing with wondershaper I ran into this too. > > After reviewing the docs I think that the wondershaper merely gives certain > traffic more bandwidth, but does not prioritize it. The CBQ qdisc does not > appear to prioritize. If you reduce your uplink rate to less than your > slowest transfer speed, you should get the results you expect. > > I am not sure what it would do for latency - during my testing with VoIP, > the wondershaper put packets in the right queues, but could not prevent > computer traffic from hogging the bandwidth. > > What would be ideal is a bandwidth limiting CBQ qdisc encapsulating a PRIO > qdisc. I think that can only be obtained with an HBT qdisc (I would be > delighted to be corrected!). It can be done, but I (stil) didn't tried it. If you read the htb pages carefully, you can get very low delays. To do so, you have to give the class a lower priority AND you have to be sure you never send more data in the class then it's rate. (chapter 6 on the htb manual) I am installing SuSE 8.1 so that I have kernel > 2.4.19 which I hope will accept the HBT and tc patches (from > <http://www.docum.org>'s pointer to HBT's home page) better than SuSE 7.3's > 2.4.10. Why upgrading your SUSE? You can also download 2.4.19 from ftp.kernel.org and patch with the lates htb patch ?? > If anyone has sample scripts used for prioritizing VoIP traffic over a VPN > (or over anything else), I would really appreciate a chance to see what was > done. The only way I have been able to get good VoIP quality is by reducing > the bandwidth available to everything else to unacceptably low levels. I know a lot of people are trying it, but I have no such script. 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/
