dummynet dropping too many packets

[rihad]

Eugene Grosbein wrote:
> On Mon, Oct 05, 2009 at 03:20:58PM +0500, rihad wrote:

>> Where has TCP slow-start gone? My router box 
>> isn't some application proxy that starts downloading at full 100 mbit/s 
>> thus quickly filling client's 1 mbit/s link. It's just a router.
> 
> While there is no or little competition for bandwidth from the router
> to clients, TCP would work just fine. I suspect your shaping policy
> makes heavy competition between clients. In this case, TCP behaves
> not-so-well without help of router's good shaping algorythms
> and taildrop is not good one.
> 

Nothing fancy (i.e. no competition). Only tons of per-user pipes 
simulating the given throughput.