I am interested in the incoming traffic (from Internet to lan users). This is 
the problem.

On Wed, 29 Aug 2007 20:12:09 +0200, Javier Ors wrote
> 
> 
> As far as I undestand, at least sfq should work without knowing the actual 
> bandwith (you don't need to specify it in the qdisc creation). The problem 
> with it is that it only works in the bottleneck of the network, where the 
> queues form, which is usually the machine which has the hardware that makes 
> the connection to the Internet. For example in this configuration... 
> 
> Internet <--- cable/dsl/etc. ---> Router/Modem <---ethernet---> Firewall 
> <---ethernet---->LAN
> 
> shaping outgoing traffic (traffic to the internet) with only sfq, esfq, prio, 
> etc... will be useless if it is done in the firewall, becouse the queues will 
> form in the router. It could be done in the same router if it has the 
> capability (for example, it runs Linux inside and it is accessible by ssh or 
> telnet). I haven't tried WRR but the same should be applied. 
> 
> Theoretically, at least as I see it, HTB could also be used without knowing 
> the actual speed in the bottleneck, you just should set the root class to a 
> speed higher than Vmax and adjust the rates of the leaf classes to the 
> desired ratios, or playing with the quantums so that it behaves like a WRR or 
> DRR (which is that it uses internally when the classes are borrowing). But I 
> have made many attempts in this sense and all of them have been unsuccessful, 
> don't know why. 
> 
> For incoming traffic it is another story, it can be done in the firewall, but 
> it is a little trickier.
> 
> Even more theoretically, outgoing shaping maybe could be done also in the 
> firewall if the router supports ECN, so that the queues could be formed in 
> the firewall using this information without nedding to reduce the bandwith, 
> but this is just a mental experiment which still have pending to brought to 
> practice, so don't pay much attention to this... 
> 
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There is some queue disciplines like esfq and WRR (w. But theses ones only 
> work if you know the actual bandwidth.  

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Este mensaje ha sido analizado por MailScanner
en busca de virus y otros contenidos peligrosos,
y se considera que está limpio.
MailScanner agradece a transtec Computers por su apoyo.

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