> > > > Well I'd prefer to leave that to professionals :). Who is packet > > filters maintainer? Alexey Kuznetsov? > > Filters ?? If you mean qos classifiers (badly named filters in tc tool) > then yes, Alexey. If you mean iptables then I'm not sure. I mean packet schedulers :). And OK. This problem is avoidable. But as another test I tried to flood link with two data streams - one UDP, one TCP, both going the same direction. Then total traffic drops considerably. Data is below. In bytes. Traffic is shaped to 256kbit. Two TCP streams or one UDP stream is shaped without problems. Traffic flows at ~33000 Mindaugas 1 1041255151 1041255161 21100.6 21100.6 21100.6 1 1041255161 1041255171 18968.4 18968.4 18968.4 1 1041255171 1041255181 19081.9 19081.9 19081.9 1 1041255181 1041255191 19946.4 19946.4 19946.4 1 1041255191 1041255201 33362 33362 33362 1 1041255201 1041255211 33105.7 33105.7 33105.7 1 1041255211 1041255221 17019.4 17019.4 17019.4 1 1041255221 1041255231 17146.2 17146.2 17146.2 1 1041255231 1041255241 18635.5 18635.5 18635.5 1 1041255241 1041255251 16486.2 16486.2 16486.2